Tag: engineering

Problem found with Soyuz set for Arianespace commercial launch

9:41 am

Russian engineers have found a problem with Freget upper stage used on their Soyuz rocket and set for an Arianespace commercial launch in French Guiana this spring.

According to the source, “a microhole has been found in one of the upper stage’s pipes, which apparently emerged during a long transportation of the booster to the spaceport in French Guiana.”

“Now the specialists of the Lavochkin Research and Production Association [Fregat’s manufacturer] are dealing with this malfunction, by the end of the week they should specify the types of the works needed for eliminating it,” the source said.

The launch may be postponed from late February until March due to this situation.

This problem might not be related to Russia’s ongoing quality control problems. It could simply be a consequence of the difficulty of shipping a rocket across the globe. At the same time, the thought must not be dismissed. They say the microhole occurred during transport, but there is no way to confirm this.

Either way, the problem and delay does not do the Russians good. I wonder if OneWeb, the commercial customer for this flight, is beginning to have regrets about its contract for 21 Soyuz launches to get a large percentage of its satellite constellation into orbit.

2 comments

China aims for at least 30 launches in 2019

9:26 am

The new colonial movement: The China Aerospace Science and Technology Corporation (CASC), China’s main government agency supervising its space program, has revealed that they have at least 30 launches planned for 2019.

This number brings the known predicted launches for 2019 to about 125, which I think would be the most ever in a single year, since Sputnik. It definitely would be the most since the 1980s.

The article also has the following information about the problems and delays that have prevented a third Long March 5 rocket launch since its second launch failed in 2017.

A redesign has been carried out to the liquid oxygen and liquid hydrogen YF-77 engines, two of which power the Long March 5 first stage, to correct the turbopump issue reported to be behind the 2017 failure. The return-to-flight mission will carry the Shijian-20 communications satellite, or “Practice-20” in Chinese, based on a new, large DFH-5 satellite platform which supports satellites from 6,500 to 9,000 kilograms.

A successful launch would mean the fourth Long March 5 would then be used to launch the Chang’e-5 lunar sample return toward the moon in late 2019. The mission will aim to collect up to 2 kilograms of rocks and regolith from a site near Mons Rümker in Oceanus Procellarum on the lunar near side and bring the samples to Earth.

A nominal return-to-flight would also clear the way for the test launch of the Long March 5B, a variant of the Long March 5 designed specifically for lofting the 20-metric ton modules of the planned Chinese Space Station (CSS) into low Earth orbit. CASC official Shang Zhi told China’s state-run Xinhua news agency that joint tests and exercises involving a test model of the rocket and the CSS core module will be carried out at Wenchang at the end of 2019 in preparation for the maiden flight of the Long March 5B. Launch of the first CSS module is currently slated for 2020.

I wonder if we will ever see the Long March 5 version ever launch again after the 5B launches successfully. I suspect not, as it appears to me that the new variant is really a cover for the significant redesign required after the 2017 launch failure.

2 comments

Well water likely available across Mars

1:49 pm

Conceptual model of Martian deep basin evolution

A science paper released today and available for download [pdf] cites evidence from about two dozen deep impact craters located from the equator to 37 degrees north latitude that Mars has a ground ice table at an elevation that also corresponds to other shoreline features. From the abstract:

Observations in the northern hemisphere show evidence of a planet‐wide groundwater system on Mars. The elevations of these water‐related morphologies in all studied basins lie within the same narrow range of depths below Mars datum and notably coincide with the elevation of some ocean shorelines proposed by previous authors.

The image above and on the right shows the middle stage of their conceptual model for the evolution of these deep basins and how that evolution results in many of the geological features seen in many places on Mars, such as the features I have highlighted on Behind the Black previously here and here.

From their conclusion:
» Read more

One comment

New report predicts the boom in smallsats will continue in 2019

9:32 am

Capitalism in space: A new analysis of the state of the smallsat industry predicts that the boom in smallsats will continue in 2019.

Coming off an excellent performance in 2018, SpaceWorks analysts project between 294 – 393 nano/microsatellites (1 – 50 kg) will launch globally in 2019, an 18% increase over last year. Of the 262 spacecraft SpaceWorks predicted to launch in 2018, 253 actually launched. “SpaceWorks showed unprecedented accuracy in last year’s forecast, with our prediction coming within 5% of actual nano/microsatellites launched.” stated Caleb Williams, Lead Economic Analyst at SpaceWorks, “Changes to our forecasting methodology, in combination with greater launch consistency and better execution on the part of small satellite operators contributed to our ability to accurately forecast market growth.”

2019 projections remain strong and have been updated to reflect the advancements of dedicated small satellite launch vehicles, changing attitudes of civil and military operators, and the rapid progress of commercial satellite IoT ventures. SpaceWorks analysts continue to gain confidence in the small satellite market as operators begin promising less and delivering more. “The rapid progress of operators focusing on IoT applications is expected to continue and communications applications are expected to quadruple their market share over the next 5 years” says Stephanie DelPozzo, SpaceWorks Economic Analyst, “overall, the maturing capabilities of small satellites are expected to open additional opportunities for growth and keep investors interested in the market during the near-term.” [emphasis mine]

The phrase I’ve highlighted is significant. It appears big government and commercial investors have finally jumped on the smallsat bandwagon after years of resistance.

The report also notes that the number of smallsat launches in the past five years has grown by 150%.

Everything in the full report confirms my sense that we are seeing a bifurcation in the aerospace industry, with the the unmanned branch producing smaller components while the manned space branch learning how to affordably build larger.

Leave a comment

New technique could make nickel as strong as titanium

9:18 am

A new technique that allows metals to mimic the internal structure of wood could make nickel, and other metals, far far strong.

Led by James Pikul, Assistant Professor in the Department of Mechanical Engineering and Applied Mechanics at Penn Engineering, the new study looked at new ways to take metal and give it the porous structure that gives wood its strength. In the past, this has been done by finding ways to turn molten metal into foam, or using 3D printing with hundred-nanometer precision to build up wood-like metal bit by bit. The problem is that metal foam is crude by modern engineering standards, while the 3D printing process is slow and very hard to scale up from lab-bench scales.

“The reason we call it metallic wood is not just its density, which is about that of wood, but its cellular nature,” Pikul says. “Cellular materials are porous; if you look at wood grain, that’s what you’re seeing  –  parts that are thick and dense and made to hold the structure, and parts that are porous and made to support biological functions, like transport to and from cells. Our structure is similar. We have areas that are thick and dense with strong metal struts, and areas that are porous with air gaps. We’re just operating at the length scales where the strength of struts approaches the theoretical maximum.”

According to the researchers, the key was to go to much smaller scales to produce much greater increases in strength. They manage this by suspending plastic spheres a few hundred nanometers wide in water, which is allowed to evaporate. As the water disappears, the spheres drop into a neat geometrical, crystalline pattern. This is then electroplated with a thin layer of chrome and the spaces between the spheres are filled with nickel. The plastic is then dissolved, and what’s left behind is an open network of metallic struts with 70 percent empty space – making it light enough to float in water.

The process is however very expensive, and so far has only produced some very small samples.

4 comments

ArianeGroup successfully test fires new solid rocket motor

9:11 am

Capitalism in space: ArianeGroup, the private consortium building Europe’s next generation of rockets, has successfully test fired the new solid rocket motor it will use for both its Ariane 6 and Vega-C rockets.

The P120C is designed and built by a European consortium involving a joint venture known as Europropulsion, a venture between ArianeGroup and Avio, as well as CNES, the Italian ASI space agency, and Airbus Safran. This multinational venture uses the Avio facilities in Colleferro, Italy to manufacture the carbon fiber composite casing, a facility in France to build the ArianeGroup composite steerable nozzle, and the propellant casting and integration facilities in French Guiana to build up and prepare these boosters for flight.

The P120C, through its common use across launch vehicle lines and use of existing facilities, is designed to reduce costs as a competitive response to newer companies like SpaceX that have dramatically lowered launch costs and captured an increasing share of the worldwide launch market, dethroning the ArianeGroup from the dominating position it had held until very recently.

Without doubt they are going to save money using this solid rocket motor on both rockets. I remain somewhat skeptical, however, about whether they will achieve enough cost savings to compete with SpaceX. The seeming lack of interest by their primary European customers for Ariane 6 suggests this. It appears that its price might still be too high.

Leave a comment

Next Long March 5 launch delayed six months to July

9:01 am

The next launch of China’s largest rocket, the Long March 5, has now been delayed another six months until July.

The second Long March-5 rocket was launched from the Wenchang Space Launch Center in the southern province of Hainan on July 2, 2017, but a malfunction happened less than six minutes after its liftoff.

In October the Chinese had predicted this launch would occur in January, so this new schedule represents a six month delay. This further delay also confirms to me that their problem in 2017, which the Chinese have never fully explained other to say it caused damage to a turbopump in one first stage engine, resulted from a fundamental design flaw in the rocket’s first stage engines, requiring major reworking.

This delay also delays the launch of the first module of their space station, as well as their first sample return mission to the Moon.

Leave a comment

Parker begins second orbit around Sun

8:43 am

The Parker Solar Probe has completed its first full orbit of the Sun and has begun full science operations.

On Jan. 19, 2019, just 161 days after its launch from Cape Canaveral Air Force Station in Florida, NASA’s Parker Solar Probe completed its first orbit of the Sun, reaching the point in its orbit farthest from our star, called aphelion. The spacecraft has now begun the second of 24 planned orbits, on track for its second perihelion, or closest approach to the Sun, on April 4, 2019.

Parker Solar Probe entered full operational status (known as Phase E) on Jan. 1, with all systems online and operating as designed. The spacecraft has been delivering data from its instruments to Earth via the Deep Space Network, and to date more than 17 gigabits of science data has been downloaded. The full dataset from the first orbit will be downloaded by April.

They have been somewhat tight-lipped about any results from the data already obtained. I suspect it has not yet been analyzed fully, and the scientists are reserving comment until they complete their first science papers and get them published.

Leave a comment

Weird Martian fracture feature

1:24 pm

Fractured collapse feature on Mars

Cool image time! When I first looked at the high resolution Mars Reconnaissance Orbiter (MRO) image on the right, my immediate reaction was, “What the heck is that?” The image to the right is cropped and reduced, but if you click on it you can see the full image at high resolution.

The fractured terrain appears to be all within a collapse. To my eye it appears that while the overall surface has sunk, the fractures indicate an area where there has been an eruption upward, which after the eruption collapsed again, so that the fractured area remains at the apparent bottom of the collapse sink. I was immediately reminded of Upheaval Dome in Yellowstone National Park, which some geologists believe was formed by a “salt bubble” rising upward to create a salt dome.

A thick layer of salt, formed by the evaporation of ancient landlocked seas, underlies much of southeastern Utah and Canyonlands National Park. When under pressure from thousands of feet of overlying rock, the salt can flow plastically, like ice moving at the bottom of a glacier. In addition, salt is less dense than sandstone. As a result, over millions of years salt can flow up through rock layers as a “salt bubble”, rising to the surface and creating salt domes that deform the surrounding rock.

Context image for fracture feature

The process and materials involved were certainly different on Mars. Nonetheless, it does appear we are looking at an eruptive feature unrelated to molten lava. The context image to the right, showing this feature’s location in Mars’ vast northern lowlands, also shows that it has occurred on terrain that has bulged upwards relative to the surrounding lowlands. Nearby MRO images also show similar bulge/collapse features.

To decipher the geological mystery here, we would also need to know when this happened and whether there ever was a liquid ocean residing on top of it, before, during, or after the eruption. We also do not know well the make-up of the underground materials, including whether any frozen water and salt is present.

To be honest, we really don’t know much. I am sure a planetary scientist studying this feature could fill us in on some of these details, such as information provided by the colors in the color image. Even so, I am sure any good scientist would also admit to unknowns.

To get some real answers, we need to be there. It is as simple as that.

Leave a comment

Virgin Galactic lays off 40 workers

3:39 pm

Capitalism in space: Virgin Galactic earlier in January laid off 40 workers, saying it was in preparation for moving their launch operations to New Mexico where they will be doing their commercial flights.

This is about 5% of their payroll, so at first glance it does not appear to be a significant number. Yet, if they were about to move to commercial operations I would think their payroll would grow, not shrink.

The article itself buys into the company’s tediously overworn sales pitch (that they have been pushing for more than a decade) that they are about to start commercial operations, flying paying tourists, but this is just not credible. For example, as part of this sales pitch they made a big deal about hiring Under Armour to make the flight suits for their flights. Yet, no designs have been released, even though Virgin Galactic has been working on doing commercial tourist flights for more than fourteen years. Only now they realize they need flight suits?

In 2017 I predicted that Virgin Orbit would fly a commercial flight before Virgin Galactic, even though Orbit only started to seriously build its rocket in 2015, about a dozen years after Galactic got started. I stand by that prediction, which I expect will prove true this year.

At the time I also predicted that Virgin Galactic’s Unity spaceship will never make orbital space, defined by practically everyone since around 1970 to be 67 miles elevation, or 100 kilometers. I also stand by that prediction, because only just before Unity’s flight to barely 50 miles did the issue of the definition of space reappear after almost a half century. Virgin Galactic has been pushing to get the definition changed because their spacecraft probably cannot get to 67 miles.

I just wish reporters would stop buying into Branson’s sales pitch. Show some skepticism, damn it. Your job isn’t to be a public relations agent for him.

10 comments

Plato Crater on the Moon

11:47 am

Plato Crater's west rim

Cool image time! The Lunar Reconnaissance Orbiter (LRO) science team this week released a new high resolution image of the western rim of 63-mile-wide Plato Crater, located near the visible edge of the Moon’s near side. On the right is a slightly reduced version cropped to show the area of most interest.

Plato crater is prominent, yet from our vantage point on Earth we never truly see it as it is. That’s because it is located far enough north of the lunar equator (center latitude 51.62°N, center longitude 350.62°E) on the curving surface of the spherical Moon that it appears foreshortened. Plato is round like most other impact craters, but from Earth we see it as an oval aligned east to west.

A dark floor makes 101-kilometer-wide Plato crater stand out against a light-colored lunar highlands background. Plato crater is also prominent by association; the crater is located just north of 1145-kilometer-wide Mare Imbrium. A small part of this mare is visible at lower left in our Featured Image. Mare Imbrium is made up of many basalt layers laid down by violent volcanic episodes over a span of about 1.5 billion years. The basalts fill the Imbrium Basin, which a large asteroid or comet impact excavated about 3.85 billion years ago. When we look at a bright full Moon, round dark Mare Imbrium captures our gaze, then we see Plato crater, which is estimated to be about a hundred million years younger than the Imbrium Basin.

The western rim of Plato crater — visible on the east (right) side of our Featured Image — includes a 23.4-kilometer-wide slump block. The roughly triangular piece of rim broke free when an asteroid impact excavated Plato crater. Its eastern edge stands up to 1.4 kilometers above the crater’s dark floor. Part of the floor is visible in the image just above right center, east of the long shadow of the rim. [emphasis mine]

That block is thus 14.5 miles wide, and almost a mile high. I am trying to imagine what it was like when it broke off the rim and fell eastward into the crater floor. I am having trouble doing so.

Below is a image of the entire crater, with the area of the image above indicated by a white box. It shows clearly how this crater splashed into the basalt lava plain of Mare Imbrium.
» Read more

2 comments

A detailed update on China’s numerous smallsat rocket companies

10:18 am

Link here. Based on this report, we should expect the first orbital launches from several of these Chinese smallsat rocket companies in 2019.

These numerous companies are ostensibly independent private companies who have raised Chinese investment capital. This is partly true. It is not the entire story however.

While the companies emerging in China’s nascent commercial launch sector are being backed by private funds, the firms are also apparently receiving significant support from the State Administration for Science, Technology and Industry for National Defense (SASTIND), a government body overseeing the country’s space activities.

A national military-civilian integration strategy is also crucial to the progress made, facilitating the transfer of required and sensitive technologies to the startups, as well as opportunities to share facilities and expertise. [emphasis mine]

Unlike Russia, China’s government might have decided here to embrace competition to encourage innovation, but we mustn’t forget that these companies only exist because the Chinese government allows them to exist. Everything that happens in China’s space industry is done with the approval of the government, for the government’s purposes. Once these companies succeed, the government will co-op them. I guarantee it.

Leave a comment

High Russian officials lambast Roscosmos and its head

10:02 am

At a meeting earlier this week several high Russian officials sharply criticized both Roscosmos and its head, Dmitry Rogozin, for repeatedly predicting grand future successes even as the state of the Russian space program worsens.

On Wednesday, the prime minister of Russia, Dmitry Medvedev, expressed his displeasure with the situation. During a meeting in Moscow with senior Roscosmos officials, Medvedev made sharply critical remarks that were reported by several Russian news organizations, including Gazeta.RU and RIA Novosti. (Translations were provided to Ars by Robinson Mitchell).

“This is a blunt and direct assertion: We need to quit projecting future plans, stop talking about where our missions will land in 2030, get to work, talk less, and do more,” Medvedev said. “We need to be more active in commercializing our space industry and increase Russia’s international market share of commercial launches.” [emphasis mine]

Medvedev as well as Russia’s deputy prime minister Yuri Borisov were blunt in noting that Roscosmos has done a bad job of competing in the commercial launch market, even as it made empty “grandiose projections” of its future deep space exploration plans.

Whether these criticisms will have any significant effect remains to be seen. Russia has structured its entire space industry into a single government-run corporation. Within Russia there is no competition, and everything is run from the top down. Such a set-up discourages innovation and risk-taking, the very things Russia needs for it to successfully compete on the world stage.

Imagine you are a young Russian guy with a clever idea for building smallsats in your basement. Or you are a young rocket engineer who has an idea about building rockets better. In Russian neither of these guys would be free to do anything, as all space projects must be supervised by Roscosmos. Roscosmos however is a government bureaucracy, and such bureaucracies are routinely loath to take risks and give power and opportunity to new people outside its power structure. Your project would either be squashed, or co-oped by the powers-in-charge so that it would not fly, as intended.

We see this in NASA today, with its decades-long resistance to new space companies like SpaceX. Fortunately, the U.S. aerospace industry has not been consolidated into a single government entity, run by NASA. Nor can it be, at least for now. The Constitution prevents government from doing this, while the political system allows for competition, even among politicians. The result has been that political appointees in both the Bush, Obama, and Trump administrations have over the past dozen years pushed the idea of reducing NASA’s control over space, and have thus made possible the arrival of a viable commercial and very competitive space industry.

In Russia, under Putin, they did exactly the opposite in 2015, ending competition and consolidating their industry under full government control. The results since have not been pretty. In 2015 Russia led the world in launches with 34. In 2018 they only launched fifteen times, the lowest total for that country since the 1960s.

Nor do I expect this trend to change in the near future, notwithstanding the blunt talk above by Russia’s leaders. At least for the next decade, I expect Russia to be a very minor player in space.

4 comments

New image of Ultima Thule

6:10 pm

Ultima Thule

The New Horizons science team today released the newest and highest quality image yet of the Kuiper Belt object Ultima Thule. The image can be seen by clicking on the slightly reduced and cropped to the right.

Obtained with the wide-angle Multicolor Visible Imaging Camera (MVIC) component of New Horizons’ Ralph instrument, this image was taken when the KBO was 4,200 miles (6,700 kilometers) from the spacecraft, at 05:26 UT (12:26 a.m. EST) on Jan. 1 – just seven minutes before closest approach. With an original resolution of 440 feet (135 meters) per pixel, the image was stored in the spacecraft’s data memory and transmitted to Earth on Jan. 18-19. Scientists then sharpened the image to enhance fine detail. (This process – known as deconvolution – also amplifies the graininess of the image when viewed at high contrast.)

The oblique lighting of this image reveals new topographic details along the day/night boundary, or terminator, near the top. These details include numerous small pits up to about 0.4 miles (0.7 kilometers) in diameter. The large circular feature, about 4 miles (7 kilometers) across, on the smaller of the two lobes, also appears to be a deep depression. Not clear is whether these pits are impact craters or features resulting from other processes, such as “collapse pits” or the ancient venting of volatile materials.

They have only begun downloading the best data and images, so expect better images in the future.

6 comments

Martian glacier with moraine?

3:03 pm

Glacier flow on Mars, with moraine

Cool image time! In the past two decades numerous images and studies of the Martian terrain produced by orbiters have shown us landslides, lava flows, water and ice produced flows, and many glacial features, all vaguely familiar but often having components reminding us of the alien nature of the Martian landscape. I have posted many here at Behind the Black. (Just do a search here for the words “Mars flow” and you will have a wealth of cool images and alien geological features to explore.)

The image on the right, rotated, cropped, and reduced to post here, shows another such feature, but this time it is less alien and more resembling a typical Earth glacier, flowing downhill slowly and pushing a moraine of debris before it. The picture was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and was part of the January image release. If you click on the image you can see the complete photograph at full resolution.

The release has no caption, but is titled “Tongue-Shaped Glacier in Centauri Montes,” referring to the largest tongue-shaped flow on the left. This feature, more than any other in the image, resembles closely many glaciers on Earth. It even has an obvious moraine at its head. As the glacial flow pushed downward slowly it gathered a pile of material that eventually began to act almost like a dam.

The location of this feature is intriguing in its own right.
» Read more

Leave a comment

India’s PSLV rocket successfully launches military satellite

11:21 am

The new colonial movement: India today successfully launched a military reconnaissance satellite using a new configuration of its PSLV rocket.

The launch was broadcast live here and is still on-going as I write.

Thursday’s launch, the forty-sixth overall for the Polar Satellite Launch Vehicle (PSLV), marks the maiden flight of the rocket’s new PSLV-DL configuration. Filling a gap in payload capacity between two of the rocket’s existing configuration, the PSLV-DL will help reduce the cost of India’s access to space. Its first payload consists of a demonstration satellite built around the rocket’s upper stage, testing this concept for future applications, and a military spacecraft with an imaging payload.

During the speeches after the launch, the head of ISRO, K. Sivan, did several things of note. First, he introduced the launch’s mission director and explained that this was his last PSLV launch, as he is leaving the program to take over important aspects of their manned program, dubbed Gaganyaan. Then he let this man speak, giving him a big platform that suggests he is definitely a rising star in their program. Unfortunately, I was not able to catch his name. We shall see him again, however, for sure.

Sivan also noted that the deadline for that first manned mission is December 2021. He also outlined the next few missions, including Chandrayaan-2 to the Moon.

The 2019 launch standings:

2 China
1 SpaceX
1 Japan
1 ULA
1 India

The U.S. and China are tied 2-2 in the national rankings.

5 comments

Oblique close-up image of Ceres

9:50 am

Ceres from Dawn

The Dawn science team has released an oblique close-up image of Ceres, taken in May 2018 before the Dawn mission ended. To the right is a reduced resolution version, with the full resolution photograph viewable if you click on it.

Dawn captured this view on May 19, 2018. The image shows the limb of Ceres at about 270E, 30N looking south. The spatial resolution is about 200 feet (60 meters) per pixel in the nearest parts of the image. The impact crater to the right (only partially visible) is Ninsar, named after a Sumerian goddess of plants and vegetation. It is about 25 miles (40 kilometers) in diameter.

Bright seeps running down the interior rims of several craters are visible. To my eye, the image also suggests an overall softness to Ceres. Its surface is like a sandbox, easily reshaped significantly by each impact.

One comment

Orbital images of Bennu

9:32 am

Close-up of Bennu's southern hemisphere

The OSIRIS-REx science team has released two new images of Bennu’s southern hemisphere, taken from orbit. The image on the right is a cropped section of the highest resolution version of a montage of two images. Click on the image to see the entire two-image montage.

These two OpNav images of Bennu’s southern hemisphere, which each have an exposure time of about 1.4 milliseconds, were captured Jan. 17 from a distance of about one mile (1.6 km). They have been cropped and the contrast has been adjusted to better reveal surface features. The large boulder – fully visible in the middle of the left frame and in partial shadow in lower portion of right frame – is about 165 feet (50 meters) across.

The cropped section to the right shows that large boulder in the middle of the frame.

I’m sorry, but when I look at this rubble-pile asteroid I cannot help but think of the cat-litter clumps I remove from our cats’ litter box. The only fundamental difference is that the grains in cat litter are made to be a uniform size, while at Bennu the grains are much coarser and not uniform. Nonetheless, this asteroid is a clump of many grains, just like those cat litter clumps, and will likely crumple easily into a cloud of grains if smacked just hard enough.

This knowledge is actually very critical, as Bennu is a potentially dangerous asteroid with an orbit that might have it impact the Earth in about two hundred years.

4 comments

Contract cancelled for Vostochny launchpad for Angara

8:54 am

The coming dark age: The Russian government has cancelled its construction contract for the much delayed Vostochny launchpad for their new much delayed Angara rocket.

Deputy Prime Minister Yuri Borisov, who curates the space and defense industry for the Russian government, announced the news on January 23 after the latest meeting with Prime Minister Dmitry Medvedev dedicated to financial problems at Roskosmos. Medvedev singled out Vostochny as a symptomatic example of poor management at the State Corporation. Only five out of 19 facilities were officially completed in Vostochny in the first phase of construction by the deadline last year, Medvedev said, according to the public recap of the meeting released by the Russian government.

After the closed-door event, Borisov told journalists that the aborted contract on the Angara pad cost the project at least six months in delays, but, he essentially admitted that the actual completion of the critically needed facility would be pushed back by around two years. “Let’s not have any illusions, nobody will be able to build (Angara pad) by 2021,” Borisov told reporters about the recent official deadline for the project, “Today, due to the juggling of prime contractors, the deadline is beyond 2021, but it (has to be) no later than 2023, because otherwise, it would be desynchronized with the development of the rocket, which would be ready but no place to launch from.”

These problems suggest that the corruption in Russia’s aerospace industry must be incredibly embedded. They, like our own incompetent federal government, can’t seem to get anything accomplished.

Leave a comment

New impact on the Martian south polar cap

10:02 am

New impact on Mars' south pole

Cool image time! The image to the right, cropped to post here, was taken on October 5, 2018 by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and shows a recent meteorite impact that occurred sometime between July and September of 2018 on the Martian polar cap . If you click on the image you can see the entire photograph. As noted in the captioned press release,

It’s notable because it occurred in the seasonal southern ice cap, and has apparently punched through it, creating a two-toned blast pattern.

The impact hit on the ice layer, and the tones of the blast pattern tell us the sequence. When an impactor hits the ground, there is a tremendous amount of force like an explosion. The larger, lighter-colored blast pattern could be the result of scouring by winds from the impact shockwave. The darker-colored inner blast pattern is because the impactor penetrated the thin ice layer, excavated the dark sand underneath, and threw it out in all directions on top of the layer.

Location on edge of south polar cap

It is not known yet the size of this meteorite. The location is shown in the overview image to the right, with the impact indicated by the white dot. The black circle in the middle of the image is the south pole itself, an area where MRO’s orbit does not allow imagery. This location, on the edge of the Martian polar cap, is helpful to scientists because it has excavated material from below the cap, providing them a peek into previously unseen the geology there. Had the impact been farther south, on the thicker cap, that hidden material below the cap would likely not have been exposed.

The cap itself is made up of both ice and frozen carbon dioxide, though the CO2 is mostly seen as frost during winter months that evaporates during the summer.

2 comments

Blue Origin reveals redesigned New Glenn rocket

9:32 am

Capitalism in space: In a video animation Blue Origin last week revealed a new redesigned version of its orbital New Glenn rocket.

There are a few notable differences between the rocket depicted in the new video and the New Glenn we saw in a similar 2017 animation. For example, the older version featured a payload fairing — the protective nose cone that surrounds spacecraft during launch — that was bullet-shaped and 18 feet (5.4 meters) wide. The current incarnation boasts a 23-foot-wide (7 m) fairing with a traditional snub-nosed look. (A previously envisioned three-stage New Glenn featured this bigger fairing, but this booster variant is no longer part of Blue Origin’s plans.)

And the first stage’s six landing legs will apparently now deploy a bit differently — by unfolding outward from the bottom, much as Falcon 9 legs do, rather than sort of sliding downward.

These changes are almost certainly are the result of the company’s Air Force contract that gave it $500 million in development money in exchange for having a say in how the rocket is built.

For example, I am not surprised that New Glenn now more closely resembles the Falcon 9. The modern American military is not known for its daring or innovation. It had to be sued to finally agree to award contracts to SpaceX. Now that the Falcon 9 is well proven, however, the military bean-counters are probably demanding that New Glenn copy it, rather than introduce innovations of its own.

8 comments

NASA pulls astronaut for medical reasons from Boeing manned flight

9:16 am

NASA has switched one member of the planned astronaut crew for the first manned Boeing Starliner mission presently scheduled in August because of medical reasons.

Eric Boe, one of three astronauts assigned to the first piloted test flight of a Boeing CST-100 Starliner commercial crew ship later this year has been removed from the mission due to unspecified medical issues, NASA announced Tuesday. He will be replaced by veteran astronaut Mike Fincke.

Boe will take over Fincke’s role as assistant to the chief for commercial crew operations in the astronaut office at the Johnson Space Center. In keeping with long-standing NASA policy regarding medical privacy, no details about the reason for Boe’s reassignment were provided.

The article notes that this is only the sixth time in the entire history of American manned space that such a switch was necessary. I hope Boe’s medical issue is not serious, and wish him well with the hope he will be flying on another Boeing or SpaceX flight quite soon.

Though not directly related to this story, to my mind the real question remains: Will NASA’s bureaucracy let this flight happen in 2019? I think it will have no choice, but it will be dragged kicking and screaming to the launchpad.

One comment

Rocket Lab gets DARPA launch contract

8:57 am

Capitalism in space: Rocket Lab today announced a new launch contract with DARPA, dedicating the company’s first launch in 2019 to that government military research agency.

DARPA’s Radio Frequency Risk Reduction Deployment Demonstration (R3D2) mission is scheduled for launch in late February and intends to space-qualify a prototype reflect array antenna to improve radio communications in small spacecraft. The antenna, made of a tissue-thin Kapton membrane, packs tightly inside the small satellite for stowage during launch, before deploying to its full size of 2.25 meters in diameter once it reaches low Earth orbit. This high compaction ratio enables larger antennas in smaller satellites, enabling satellite owners to take advantage of volume-limited launch opportunities while still providing significant capability. The mission could help validate emerging concepts for a resilient sensor and data transport layer in low Earth orbit – a capability that does not exist today, but one which could revolutionize global communications by laying the groundwork for a space-based internet.

…The mission, the first of monthly Electron launches this year, will lift-off from Rocket Lab Launch Complex 1 on the Māhia Peninsula of New Zealand. To ensure precise insertion and responsible orbital deployment, the R3D2 payload will be deployed via the Electron Kick Stage to a circular orbit. Using this unique launch method, Electron’s second stage is left in a highly elliptical orbit where the stage is subject to significant atmospheric drag, causing it to de-orbit and burn up to nothing in a reduced time frame. The Kick Stage is then used to deploy the satellite payload to a precise orbit, following which the Kick Stage can perform a de-orbit burn to speed up its re-entry, leaving no orbital debris behind in space. [emphasis mine]

The highlighted sections in the quote above indicate the schedule. Rocket Lab had suggested last year that once it successfully completed its November and December 2018 launches it would in 2019 launch monthly. They are still clearly pushing for that schedule, but it is also clear now that they will not launch in January and their February launch will be late in the month, suggesting the next launch will likely not be in March.

These delays at this point are not significant, though if they do not ramp up to that monthly schedule by the end of 2019 it will be.

This late announcement of a payload for the first 2019 launch also suggests that DARPA was willing to pay a premium to leapfrog over Rocket Lab’s already signed customers. My industry sources also suggest that the U.S. military has in the past few months become very very interested in these new smallsat rockets, and has been approaching them all to arrange future flights.

Leave a comment

Planetary rover update: January 22, 2019

12:06 pm

Summary: Curiosity begins journey off of Vera Rubin Ridge. Opportunity’s silence is now more than seven months long, with new dust storms arriving. Yutu-2 begins roving the Moon’s far side.

Before providing today’s update, I have decided to provide links to all the updates that have taken place since I provided a full list in my February 8, 2018 update. As I noted then, this allows my new readers to catch up and have a better understanding of where each rover is, where each is heading, and what fascinating things they have seen in the past few years.

These updates began when I decided to figure out the overall context of Curiosity’s travels, which resulted in my March 2016 post, Pinpointing Curiosity’s location in Gale Crater. Then, when Curiosity started to travel through the fascinating and rough Murray Buttes terrain in the summer of 2016, I stated to post regular updates. To understand the press releases from NASA on the rover’s discoveries it is really necessary to understand the larger picture, which is what these updates provide. Soon, I added Opportunity to the updates, with the larger context of its recent travels along the rim of Endeavour Crater explained in my May 15, 2017 rover update.

Now an update of what has happened since November!
» Read more

One comment

UAE’s Mars mission on schedule for 2020 launch

8:59 am

The new colonial movement: According to one of the chief engineers for the United Arab Emirates’ (UAE) unmanned mission to Mars, dubbed Hope, the spacecraft is on schedule for its 2020 launch by a Japanese rocket.

If all goes right, Hope will go into Martian orbit in 2021.

The quotes in the article from that chief engineer reveal somewhat the overall shallowness of UAE’s space effort at this point.

Omar Hussain, Lead Mission Design and Navigation Engineer for the Emirates Mars Mission, speaking at the Science Event 2019 held at Mohammed Bin Rashid Space Centre in Dubai, said the team have had to overcome a number of challenges along the way.

“It is too early to talk about a specific date just yet but everything is on track and there have been no delays,” said the 29-year-old Emirati. “Speaking for myself, it has been challenging because I had to switch from planning for Earth-based projects to interplanetary missions.

“It took a lot of education to get to that point as I had never done a mission that goes beyond the Earth’s lower orbits. I had to study how I would get the spacecraft from Earth to Mars.”

The goal with their space program is to help diversify UAE’s economy. It might eventually do this, but for now, they I think are very dependent on the help they are getting from others. Japan is providing the rocket, and India the engineering expertise for the spacecraft.

2 comments

Problem found with Angara’s most powerful version

8:41 am

The new colonial movement: Engineers of the most powerful variant of Russia’s next generation Angara family of rockets, the Angara A5, have found a serious design issue in the engines that they appear to be having problems solving.

The issue with the Angara A5 was brought to attention by scientists at rocket engine manufacturer Energomash in a paper ahead of a space conference later this month.

The paper, reported by RIA news agency on Friday and published online, said the engines of the Angara A5 could produce low frequency oscillations that could ultimately destroy the rocket.

A special valve had been fitted to mitigate the issue, but in some cases the oscillations continued, it said. Energomash did not immediately reply to a request for comment.

This sounds to me like “pogo,” a somewhat common issue with rockets. A resonance builds up within the engines during launch, and the vibration can grow strong enough to cause serious damage. The Saturn 5 had this issue during its second test launch, requiring a redesign of the upper stage engine hydrogen fuel lines.

With this history in mind, I would still not make that much of a big deal about this issue. The Angara A5 is a new rocket. It simply needs testing in flight followed by engineering revisions to work out these kinks.

The problem will be Russia’s government. Putin wants this rocket flying, for his own political purposes, and the question remains whether he will allow its proper engineering development to proceed at the correct pace. This does not mean development should be slow, but that failure is accepted and allowed for while you maintain a fast pace.

One comment

Hayabusa-2 names features on Ryugu

10:37 am

The Hayabusa-2 science/engineering teams have now revealed the names they have given to all the significant features on Ryugu that they have photographed.

To name a place on a celestial body in the Solar System, you must first decide on a theme. For example, the theme for places on Venus is the “names of goddesses”. During discussions between the domestic and overseas project members, suggestions such as “names of castles around the world”, “word for ‘dragon’ in different languages” and the “names of deep-sea creatures” were proposed for the place name theme on Ryugu. After an intense debate, the theme was selected to be “names that appear in stories for children” and a theme proposal was put to the IAU WG. The proposal was accepted on September 25, after which the discussion moved to selecting the topographical features to be named and the choice of name.

The link provides a table describing the meaning of many of the names, which is often quite amusing. For example, Kolobok Crater comes from a Russian story about “A small round bread that ran away from home.”

2 comments
1 … 282 283 284 285 286 … 518