Tag: engineering

A dark dust avalanche on Mars

10:01 am

No dust avalanche

After dust avalanche

Cool image time! The two images to the right, both cropped to post here, were taken six years apart by Mars Reconnaissance Orbiter (MRO) of the western lava slopes of the giant volcano Olympus Mons. They show the appearance of a dark dust avalanche during the interim. As noted by members of the MRO science team.

Dust avalanches create slope streaks that expose darker materials usually hidden below a lighter-toned layer. Cascading fine-grained material easily diverts around boulders or alters direction when encountering a change in slope. The dark steak … is approximately 1 kilometer in length that we didn’t see in a previous image. Past avalanche sites are still visible and fading slowly as dust settles out of the atmosphere and is deposited on the dark streaks over time.

We also see boulders and their shadows that are a meter or greater in size. Movement of any of these boulders down the slope could trigger future avalanches.

The appearance of these Martian dark streaks on slopes is actually not uncommon. As more pictures are taken of Mars scientists are beginning to accumulate a large number all across the Martian surface.

What I find fascinating is the wet look of these dark streaks. Below is a close-up of the new avalanche, near its head.
» Read more

4 comments

SpaceX successfully launches commercial communications satellite

9:54 am

Capitalism in space: SpaceX last night successfully launched Telstar 19v, a commercial communications satellite.

This was the second Block 5 rocket to fly successfully.

Correction: Previously I had said that these two flights served to satisfy NASA’s demands for seven successful Block 5 launches before they would certify it for commercial crew. It turns out that neither accomplishes this, because the tanks within are not the finalized versions. Thank you readers!

The leaders in the 2018 launch race:

20 China
13 SpaceX
8 Russia
5 ULA
4 Japan

In the national standings China is now only one launch ahead of the U.S., 20-19.

18 comments

Starliner has propellant leak during launch abort test

9:28 am

Capitalism in space: Boeing’s Starliner capsule experienced a propellant leak near the end of a launch abort test in late June.

The company said it conducted a hot-fire test of the launch-abort engines on an integrated service module at the White Sands Test Facility in New Mexico in June. The engines successfully ignited and ran for the full duration, but during engine shutdown an anomaly occurred that resulted in a propellant leak. “We have been conducting a thorough investigation with assistance from our NASA and industry partners,” the statement said. “We are confident we found the cause and are moving forward with corrective action.”

The capsule being tested is an engineering model, not one that is intended to fly. Boeing also has said that “they believe there is an operational fix to the problem rather than a need to significantly rework the Starliner spacecraft itself.”

This incident however is certain to delay Boeing’s crew launch schedule, especially considering NASA’s own timidity about the privately built space capsules. The agency will insist on a complete review, no matter how long it takes, even if the company has pinpointed the problem already and has instituted corrections.

In a normal world, this event should not effect SpaceX’s schedule. I also expect however that the agency will use this event to slow SpaceX down again, demanding further reviews there as well.

4 comments

Europe initiates website to name ExoMars 2020 rover

9:26 am

The European Space Agency has created a website where people can offer their suggestions to name the ExoMars 2020 rover.

Astronaut Tim Peake is leading the hunt for a great moniker. He wants everyone to go to a special website set up for the purpose and enter a suggestion. But don’t think “Spacey McSpaceFace” is a goer because this is not an online poll. All ideas will be put before an expert panel and it is they who will make the final choice.

If all goes right, 2020 should see two new rovers arrive on the Martian surface.

4 comments

A detailed look at upcoming SpaceX launch recovery operations

11:19 pm

Link here. They are expanding their drone fleet and their capsule recovery fleet. Though we should expect some big developments in the coming year, there was also this tidbit:

Earlier this year, the company’s president Gwynne Shotwell told CNBC that next year will see a decrease in the company’s launch cadence. The slip is due to a decline in the number of large geostationary communications satellites needing a launch.

Missions to a geostationary transfer orbit make up the majority of launches requiring a droneship recovery. Therefore, it is unlikely that two east coast droneships will be needed to support Falcon 9 over the next year or two.

It appears that after five years of effort, SpaceX has finally begun to clean out its backlog of contracted launches, caused by the initial development delays of the Falcon 9 and its two failures.

2 comments

China developing a robot satellite refueling spacecraft

11:11 pm

The new colonial movement: China today reported that it is developing a robot satellite that would attach itself to satellites that are out of fuel and use its own fuel to make the spacecraft usable again.

Hu Di, the chief designer of the vehicle, said compared with foreign research that focuses on refueling satellites that have run out of fuel, their option is much simpler and efficient. The vehicle will take about two years to complete.

Hu Di is wrong. In fact, I wonder if they have stolen this idea from Northrop Grumman, which as Orbital ATK has been developing a project exactly like this for several years.

Leave a comment

Hayabusa-2 finds Ryugu covered with scattered large boulders

11:02 pm

Hayabusa-2 has found that the asteroid Ryugu is covered with many scattered large boulders.

The Hayabusa 2 space probe discovered many boulders scattered on the asteroid Ryugu, suggesting it was formed from fragments of other celestial bodies, the Japan Aerospace Exploration Agency (JAXA) said July 19. More than 100 rocks larger than 8 meters in length were confirmed on the surface of the “spinning top” asteroid from images captured by Hayabusa 2, according to JAXA. The largest boulder was about 130 meters in length near the south pole.

The rocks are likely too big to be meteor fragments from collisions with Ryugu, which has a diameter of about 900 meters. “(The finding) is compelling evidence to prove that the Ryugu asteroid was formed by fragments of larger celestial bodies,” said Seiichiro Watanabe, head of the study team and professor of Nagoya University.

The asteroid’s slightly tilted axis of rotation gives Ryugu two seasons: summer and winter. Hayabusa 2 found the temperature ranged from about 20 to 100 degrees on Ryugu’s surface.

Surprise! This finding makes Ryugu very different from every other asteroid previously visited. Most have had relatively smooth surfaces, with lots of dust.

One comment

Dust storm update on Mars

2:03 pm

Link here. This press release basically reviews what each Martian spacecraft, in orbit or on the surface, is doing to study or survive the global dust storm that erupted on Mars in in early June.

The storm itself has not yet eased, and the general expectation is that it will last for a couple of months, through August.

2 comments

Global mosiacs of Titan in infrared

8:53 am

Titan in infrared

The Cassini science team today released global infrared mosaics of Titan, created from images accumulated during the more than 100 fly-bys of the moon during the spacecraft’s thirteen years in orbit around Saturn.

The image on the right, cropped and reduced in resolution to post here, is only one such global mosaic. Go to the story to see them all.

Making mosaics of VIMS images of Titan has always been a challenge because the data were obtained over many different flybys with different observing geometries and atmospheric conditions. One result is that very prominent seams appear in the mosaics that are quite difficult for imaging scientists to remove. But, through laborious and detailed analyses of the data, along with time consuming hand processing of the mosaics, the seams have been mostly removed. This is an update to the work previously discussed in PIA20022.

Any full color image is comprised of three color channels: red, green and blue. Each of the three color channels combined to create these views was produced using a ratio between the brightness of Titan’s surface at two different wavelengths (1.59/1.27 microns [red], 2.03/1.27 microns [green] and 1.27/1.08 microns [blue]). This technique (called a “band-ratio” technique) reduces the prominence of seams, as well as emphasizing subtle spectral variations in the materials on Titan’s surface. For example, the moon’s equatorial dune fields appear a consistent brown color here. There are also bluish and purplish areas that may have different compositions from the other bright areas, and may be enriched in water ice.

One comment

New close-up images of Ceres

12:15 pm

Cerealia Facula on Ceres

Cool image time! The image on the right, cropped and reduced in resolution to post here, is one of two images released today by the Dawn science team of the double bright spots found in Occator Crater, taken from the spacecraft’s tight final orbit above Ceres. This image shows what they have dubbed Cerealia Facula. The second image shows Vinalia Faculae.

This mosaic of Cerealia Facula is based on images obtained by NASA’s Dawn spacecraft in its second extended mission, from an altitude as low as about 21 miles (34 kilometers). The contrast in resolution obtained by the two phases is visible here, reflected by a few gaps in the high-resolution coverage. This image is superposed to a similar scene acquired in the low-altitude mapping orbit of the mission from an altitude of about 240 miles (385 km).

Inset of Cerealia Facula

The second image on the left is a crop at full resolution of the area in the white box above. This gives you a taste of the many interesting things found in the full resolution image. For example, the bright spots scattered throughout this image suggest they are recent upwellings from below. The ridgelines in the upper right are either the remains of the water-ice volcano they think once stood here but subsequently slumped back down to form a depression, or pressure ridges being pushed up by later upwellings.

The full image has lots more. So does the image of Vinalia Faculae. Check them out.

14 comments

Chinese officials quite rightly dismiss LOP-G

11:07 am

At a science workshop in Europe this week Chinese space officials made it clear that they found the concept of NASA Lunar Orbiting Platform-Gateway (LOP-G) to be unimpressive and uninteresting.

Moreover, they said that while it appears we will be delaying our landings on the Moon for at least a decade because of LOP-G, they will be focused on getting and building a research station on the surface, right off the bat.

Overall, Pei does not appear to be a fan of NASA’s plan to build a deep space gateway, formally known as the Lunar Orbital Platform-Gateway, at a near-rectilinear halo orbit. Whereas NASA will focus its activities on this gateway away from the Moon, Pei said China will focus on a “lunar scientific research station.”

Another slide from Pei offered some thoughts on the gateway concept, which NASA intends to build out during the 2020s, delaying a human landing on the Moon until the end of the decade at the earliest. Pei does not appear to be certain about the scientific objectives of such a station, and the deputy director concludes that, from a cost-benefit standpoint, the gateway would have “lost cost-effectiveness.”

The Chinese are right of course. LOP-G is merely a fake project to justify SLS and Orion, designed not to explore space but to provide Congress a jobs program on Earth. It will hand the Moon to China, while we dither in lunar orbit.

27 comments

Another successful test flight for second New Shepard suborbital spacecraft

10:52 am

Capitalism in space: Blue Origin today completed another successful test flight for its second New Shepard suborbital spacecraft.

This flight tested the capsule’s launch abort capabilities. It was also this spacecraft’s third flight. The link provides a replay of the full broadcast. I have embedded this below the fold. The launch is at about 29 minutes.

More info here.
» Read more

8 comments

A petition to kill SLS/Orion and LOP-G

12:54 pm

Link here. To quote their announcement at the link:

What’s killing America’s human access to space? Three projects: a rocket called the Space Launch System, a capsule called the Orion, and a new project called the Lunar Orbital Platform-Gateway.

These three programs are political boondoggles, pork, pie in the sky, jobs programs disguised as space programs. The Space Launch System, for example, is touted as the biggest rocket ever built. But its $30 billion development cost is eating up almost all of NASA’s human budget for deep space. Compare that $30 billion with the cost of developing Elon Musk’s Falcon Heavy—less than a billion dollars. In other words, for the cost of developing the Space Launch System, we could develop thirty brand new rockets if we took the Elon Musk route. Or we could develop an entire Moon and Mars program.

After thirteen years of promises, the Space Launch System has never flown. And when it does, it will cripple NASA. The cost of one launch will be between one and two billion dollars. For that price, you could buy between eleven and 22 launches of the Falcon Heavy. You could buy the launches for an entire Moon and Mars program.

What’s worse, after the launch of each Space Launch System rocket, we will throw the exorbitantly-priced rocket away, then we will be forced to buy another one. Meanwhile, Elon Musk and Jeff Bezos are making rockets reusable. And reusable rockets, like reusable busses, trucks, trains, cars, and airplanes, will lower our cost of access to space dramatically.

Then there’s the Orion capsule that the SLS will fling into space. It cannot land. It can’t land on the Moon. It can’t land on Mars. And it’s too small to carry crews to Mars. It is a boondoggle.

Topping it all off is the Lunar Orbital Platform – Gateway, another nipple in the mouth of the Space Military Industrial Complex, another make-work program. It is a mini space station orbiting the moon. It’s useless and can’t even be manned or womanned year-round. But it will cost so much to build that we’ll never be able to build lunar landers. We won’t touch down on the moon. We’ll simply circle the moon from a distance and watch with frustration as the Chinese land human beings. [emphasis in original]

The last point about LOP-G is especially important. It is designed not to promote the exploration and settlement of the solar system, but as a kind of purgatory where the U.S. will remain trapped in lunar orbit, accomplishing nothing, while other nations land and settle the Moon.

I have signed. Anyone who has been reading Behind the Black or listening to me for the past decade will know that this has been my position, from the get-go. I am very glad that others in the space industry are now standing up to echo that position.

11 comments

Mars rover update: July 17, 2018

12:35 pm

Summary: Curiosity climbs back up onto Vera Rubin Ridge to attempt its second drillhole since drill recovery, this time at a spot on the ridge with the highest orbital signature for hematite. Opportunity remains silent, shut down due to the global dust storm.

For a list of past updates beginning in July 2016, see my February 8, 2018 update.

Curiosity

Curiosity's travels on and off Vera Rubin Ridge

For the overall context of Curiosity’s travels, see Pinpointing Curiosity’s location in Gale Crater.

In the almost two months since my May 23, 2018 update, a lot has happened, much of which I covered in daily updates. Curiosity found a good drill spot to once again test the new drilling techniques designed by engineers to bypass its stuck drill feed mechanism, and was successful in getting its first drill sample in about a year and a half. The rover then returned uphill, returning to a spot on Vera Rubin Ridge that, according to satellite data, has the highest signature for hematite on the entire ridge. The light green dotted line in the traverse map to the right shows the route Curiosity has taken back up onto Vera Rubin Ridge. The red dotted line shows the original planned route off the ridge and up Mount Sharp.
» Read more

3 comments

Lockheed Martin key investor in Rocket Lab

9:39 am

Capitalism in space: In this article about how Lockheed Martin and a smallsat rocket company have won launch development contracts from the British government in connection with the UK’s first spaceport in Scotland was this tidbit of information I have never known:

Lockheed Martin and Orbex, a UK-based company development a small satellite booster, have announced their intention to launch from Sutherland. Lockheed Martin will receive £23.5 million ($31.1 million) and Orbex will get £5.5 million ($7.3 million) from the U.K. Space Agency to advance work on their launcher programs.

The British government, Lockheed Martin and Orbex made their announcements at the Farnborough International Airshow.

Lockheed Martin is reportedly interested in launching a variant of Rocket Lab’s Electron booster from the Sutherland site. The U.S. aerospace contractor is a strategic investor in Rocket Lab, which already operates an orbital spaceport in New Zealand, and is planning to develop a U.S. launch pad for the Electron vehicle, which has made two test flights to date. [emphasis mine]

It sounds as if Lockheed Martin, after funding Rocket Lab and letting it do all the initial risky development, is now moving in to use its vast resources to develop its own competitive smallsat rocket, possibly using some of the knowledge gained by Rocket Lab.

Hat tip reader Steve Golson.

One comment

India tests upgraded rocket engine

10:17 pm

The new colonial movement: India’s space agency ISRO has successfully tested an upgraded version of the Vikas rocket engine it uses in its PSLV and GSLV rockets.

The test was conducted on Sunday, and validated the performance adequacy of Vikas Engine to be used in the upcoming second developmental flight of GSLV Mk-III

Vikas Engine, a workhorse liquid rocket engine designed by the Indian Space Research Organsiation (ISRO), powers the second stage of Polar Satellite Launch Vehicle (PSLV) of India. It also powers the second stage and the fourth strap of Geosynchronous Launch Vehicle (GSLV) and the twin-engine core liquid stage (L110) of GSLV Mk-III.

Essentially India here is doing what SpaceX did with its Merlin engine. Rather than start over with a new engine, they are upgrading it, a process that is faster and less expensive. And as they do it, they remain operational and competitive in the launch market, with as many as five launches now scheduled before the end of 2018.

One comment

ArianeGroup successfully tests solid rocket booster

10:11 pm

Capitalism in space: ArianeGroup today successfully tested the solid rocket booster that it will use on both its Ariane 6 and Vega-C rockets in the 2020s.

The test success is good news for ArianeGroup, but this quote is actually more significant:

A compromise reached in May by European Space Agency members funding launch vehicle development will keep production of the P120C in Italy, allowing Avio to produce up to 35 boosters annually. A previous arrangement would have split production between Colleferro, Italy-based Avio and MT Aerospace of Augsburg, Germany.

The economies of scale provided by using the same booster for two rockets and concentrating production in one place are a key aspect of reducing the price for Ariane 6 missions by 40 to 50 percent compared to the Ariane 5 in use today.

Faced with stiff competition from SpaceX, the European Space Agency (ESA) gave ArianeGroup the power to structure operations more efficiently rather than cater to the pork desires of the agency’s many member nations.

Whether either Ariane 6 or Vega-C can compete with SpaceX’s reusuable rockets however remains doubtful. I expect that almost all of ArianeGroup’s customers in the next decade will be ESA member nations, required to buy its more expensive services.

5 comments

A weird lunar lava field

2:43 pm

Weird terrain at Ina on the Moon

Cool image time! The image on the right, reduced and rotated 180 degrees to post here, comes from a recent release for Lunar Reconnaissance Orbiter (LRO). It shows a flow of lava that partly covers an older terrain.

Some scientists propose that Ina formed as very young (less than 100 million years) volcanic eruptions because only a few larger impact craters (>20 m) have formed on its surface. Others believe it is quite ancient (3.5 billion years), possessing highly unusual physical properties that stifle the formation of normal impact craters. At least everybody agrees it was formed as basalt was erupted to the surface! But how and when Ina formed remains open.

Ina’s morphology is so unusual that it is easy to see inverted topography – that is, craters appear as bubbles rather than bowls! Think of Ina as a cast iron frying pan with freshly poured pancake batter; the wiggly textured material is the frying pan and the bulbous smoother mounds are the batter.

The image to the right has been rotated 180 degrees so that my mind at least can see it with the craters as bowls and the uplifted smooth lava as uplifted. If this doesn’t work for you, click on the link and look at the original image.

While some scientists think the lava flows are recent, no one knows at present the origins of the rougher terrain that the lava has partly obscured.

6 comments

Boeing puts foam insulation on one SLS tank

9:10 am

My heart be still: Asked by NASA management to pick up the pace, Boeing managed to put foam insulation on one of the SLS oxygen tanks in less than two weeks.

The reason NASA wanted to pick up the pace? In May contamination had been found in the system’s supply lines.

“The prime contractor determined the vendor was not fully cleaning the tubes and it was leaving residue in the tubes,” McErlean said. “This was retained as a requirement in the prime contractor’s spec, but it was not properly carried out.” Boeing is the prime contractor for the SLS core stage, but he did not disclose the vendor who provided the contaminated tubing.

The contamination was initially found in a single tube, he said, but later checks found similar residue in other tubes. All the tubing in the core stage is now being inspected and cleaned, a process he said is not straightforward because of the “mass of tubing” in the engine section and also because cleaning is a “non-trivial process.”

In reading the first link above, however, I do not get the sense that things with SLS are really moving quickly. Instead, I get, as I have for this entire project, the sense that the pace is designed to proceed at a glacial pace. Thus, when they need to get things done more more quickly, they can easily do so. Whether that increased speed is really fast, however, remains to me quite questionable.

Note: My appearance tomorrow night on the John Batchelor Show will be focused entirely on NASA’s effort to slow commercial space down, so as to reduce the embarrassment to SLS. I am going to make believe I am giving a briefing to Mike Pence and the National Space Council, explaining in detail why NASA actually seems hostile to getting anything done.

It is our hope that maybe someone in the administration might hear it, and rethink the Trump space policy.

6 comments

Binary asteroid imaged by radio telescopes

10:18 am

Three radio telescopes have successfully imaged the rotation of a binary asteroid, the fourth such binary so far discovered.

On June 21, the asteroid 2017 YE5 made its closest approach to Earth for at least the next 170 years, coming to within 3.7 million miles (6 million kilometers) of Earth, or about 16 times the distance between Earth and the Moon. On June 21 and 22, observations by NASA’s Goldstone Solar System Radar (GSSR) in California showed the first signs that 2017 YE5 could be a binary system. The observations revealed two distinct lobes, but the asteroid’s orientation was such that scientists could not see if the two bodies were separate or joined. Eventually, the two objects rotated to expose a distinct gap between them.

Scientists at the Arecibo Observatory in Puerto Rico had already planned to observe 2017 YE5, and they were alerted by their colleagues at Goldstone of the asteroid’s unique properties. On June 24, the scientists teamed up with researchers at the Green Bank Observatory (GBO) in West Virginia and used the two observatories together in a bi-static radar configuration (in which Arecibo transmits the radar signal and Green Bank receives the return signal). Together, they were able to confirm that 2017 YE5 consists of two separated objects. By June 26, both Goldstone and Arecibo had independently confirmed the asteroid’s binary nature.

The new observations obtained between June 21 and 26 indicate that the two objects revolve around each other once every 20 to 24 hours. This was confirmed with visible-light observations of brightness variations by Brian Warner at the Center for Solar System Studies in Rancho Cucamonga, California.

I have embedded below the fold a short video that includes the radio images showing this rotation. Most cool!
» Read more

One comment

SpaceX’s first test crew Dragon capsule arrives in Florida

9:52 am

Capitalism in space: The first man-rated Dragon capsule set to fly has arrived in Florida to be prepped for launch.

Even though the vehicle is called a “Crew Dragon,” this Dragon won’t carry crew on its first flight. Instead, it’s due to make an uncrewed practice run to the space station during what’s known as Demonstration Mission 1, or DM-1.

Before this week’s shipment to Florida, the Dragon underwent thermal vacuum tests as well as acoustic tests at NASA’s Plum Brook Station in Ohio. Today SpaceX showed off a picture of the Crew Dragon, which is a redesigned, beefed-up version of its robotic cargo-carrying Dragon, via Twitter and Instagram.

NASA’s current schedule calls for SpaceX’s Falcon 9 rocket to launch the DM-1 mission next month from Kennedy Space Center. However, that schedule is dependent not only on the pace of preparations, but also on the timetable for station arrivals and departures.

SpaceX is clearly on schedule to fly the first unmanned test flight in September, and the first manned flight in January 2019. And once that manned flight take place, I can see no reason why operational flights shouldn’t follow soon thereafter.

Yet, NASA said earlier this week that those operational flights will almost certainly be delayed until 2020, mainly because SpaceX might not be able to get the paperwork filled out fast enough.

Here’s my prediction: If SpaceX flies that manned mission in early 2019, expect their operational flights to begin soon thereafter, not in 2020. NASA will have no choice but to accept the capsule and begin flights.

6 comments

SpaceX delivers huge supply tank to Boca Chica spaceport site

9:06 am

Capitalism in space: SpaceX yesterday delivered a huge oxygen supply tank to its future Boca Chica spaceport site, now aimed as the main initial test site for its Big Falcon Rocket.

“Delivery of a new liquid oxygen tank, which will be used to support propellant-loading operations during launch and vehicle tests, represents the latest major piece of launch hardware to arrive at the site for installation,” he said.

In February, SpaceX CEO and lead designer Elon Musk said brief “hopper flights” of the company’s Big Falcon Rocket spacecraft component probably will take place at Boca Chica, possibly next year.

SpaceX is focusing on the development of the BFR to get the first humans to Mars, Musk’s ultimate goal, though it had originally planned to develop the smaller Falcon Heavy rockets for the purpose. The BFR rocket/spacecraft system will be built at a SpaceX facility at the Port of Los Angeles. Fully assembled, it is expected to stand 340 feet tall, according to the Los Angeles Times.

Do not put much faith in the predicted dates above. I am confident that we will not see a test flight of BFR for at least three, if not five years. I think it will happen, but not as quickly as Musk and SpaceX likes to predict.

3 comments

SpaceX installs much larger arms for net on ship for fairing recapture

9:30 am

Capitalism in space: SpaceX has completed the installation of much larger arms for the net that will be used to try catching rocket fairings.

While it’s difficult to estimate from photos alone, it appears that Mr Steven’s new arms are minimum of roughly 65 meters squared, assuming a square aspect ratio. In other words, the vessel’s next and newest net could have an area as large as 3600 square meters (~40,000 square feet, ~0.85 acres), easily more than quadruple the size of Mr Steven’s previous net. For comparison, the massive autonomous spaceport drone ships (ASDS) SpaceX often recovers its Falcon 9 and Heavy boosters aboard have a usable landing area of roughly 45,000 square feet, a little more than 10% larger than Mr Steven’s new net.

With these vast new arms, struts, and (soon enough) net, SpaceX is likely as close as they have ever been to successfully catching a Falcon 9 fairing, an achievement that would likely allow the company to begin reusing the large carbon fiber-composite shrouds almost immediately. Critically, although SpaceX appears to have begun attaching recovery hardware to both fairing halves in recent West Coast attempts, it remains to be seen whether Mr Steven’s new claw apparatus will be able to catch both halves, thus closing the gap on fairing recovery without necessitating the leasing and modification of perhaps three additional copies of the vessel.

This new net setup is big. We shall see if it works during an Iridium launch later this month.

11 comments

Engine tests for reusable Phantom Express space plane completed

9:22 am

Boeing and Aerojet Rocketdyne have successfully completed ten engine firings in ten days of an rocket engine originally designed for the space shuttle and now being recycled as part of Boeing’s Phantom Express reusable rocket being built for DARPA.

I honestly am not that excited by this. The Merlin engine has been able to do some variation of this now for a half decade. Firing an engine repeatedly is required to get satellites into geosynchronous orbit. This really isn’t news.

Nonetheless, it will be news if they can get this engine installed in a rocket that they actually fly to orbit ten times in ten days.

Leave a comment

Rocket Lab plans second launch site in U.S.

9:01 am

Capitalism in space: Rocket Lab is considering opening a second launch site in U.S.

American sites being considered were Cape Canaveral in Florida, Wallops Flight Facility in Virginia, Pacific Spaceport Complex in Alaska and Vandenberg Air Force Base in California, Rocket Lab said.

The firm expected its first launch from the United States would take place in the second quarter of 2019.

Since the company has not yet succeeded in initiating commercial operations, we should not get too excited by this news. At the same time, that they are considering doing this suggests they are increasingly confident about their future.

One comment

Cygnus fires engine to test reboost of ISS

8:56 am

The Cygnus freighter presently berthed to ISS yesterday did a successful test engine firing to see if it could raise the orbit of ISS.

The cargo resupply vehicle provided a reboost to the Station at 4:25 pm Eastern, with a short 50 second burn of its main engine on the aft of the vehicle, raising the Station’s altitude by 295 feet. This test will pave the way for future, longer burns, removing some of the orbital stationkeeping strain from the Russian assets.

This was the first time since the retirement of the Space Shuttle fleet in July 2011, a US spacecraft had performed a reboost of the ISS.

Northrop Grumman proposed the idea, considering it a way to enhance the value of Cygnus for future NASA contracts. It also appears that NASA is looking to see if the Dragon and Starliner capsule can do this. If so, it will free the U.S. from another dependency it presently has with Russia, who today has the only approved ability to raise the station’s orbit, using Progress and Soyuz capsules and sometimes the engine on its Zvezda module.

Leave a comment

Inventor of 3D gun wins lawsuit against Justice

5:14 pm

The inventor of a 3D gun has won a free speech lawsuit against the Justice Department for its order blocking the publication of his 3D gun designs.

Cody Wilson’s Defense Distributed and Second Amendment Foundation (SAF) reached a settlement with the Department of Justice allowing unfettered publication of 3D gun files and other information in a case centered on free speech. Breitbart News reported that SAF filed a suit on behalf of Defense Distributed on May 6, 2015, seeking to free Wilson from a federal mandate that he not post blueprints for The Liberator pistol online.

Over three years later, the announcement comes that Wilson and SAF won. SAF sent a press release to Breitbart News, explaining details of settlement, saying, “The government has agreed to waive its prior restraint against the plaintiffs, allowing them to freely publish the 3-D files and other information at issue. The government has also agreed to pay a significant portion of the plaintiffs’ attorney’s fees, and to return $10,000 in State Department registration dues paid by Defense Distributed as a result of the prior restraint.”

In other words, the Justice Department had no authority under the Constitution to block the publication of these 3D gun plans, and in its effort to try it has lost badly.

What this really means is that it is now literally impossible for any government to impose gun control. If you want a gun, all you will need is the right kind of 3D printer (getting better all the time) and the right plans, soon to be available on the web. While this might make guns more available for bad guys, I guarantee that they will quickly be outnumbered by the good guys.

6 comments
1 … 235 236 237 238 239 … 453