Tag: engineering

Parker sets new records in its flight to the Sun

9:19 am

The Parker Solar Probe has set two new space records, first for making the closest approach to the Sun as well as becoming the fastest spacecraft ever.

The spacecraft passed the current record of 26.55 million miles from the Sun’s surface on Oct. 29, 2018, at about 1:04 p.m. EDT, as calculated by the Parker Solar Probe team. The previous record for closest solar approach was set by the German-American Helios 2 spacecraft in April 1976. As the Parker Solar Probe mission progresses, the spacecraft will repeatedly break its own records, with a final close approach of 3.83 million miles from the Sun’s surface expected in 2024.

“It’s been just 78 days since Parker Solar Probe launched, and we’ve now come closer to our star than any other spacecraft in history,” said Project Manager Andy Driesman, from the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland. “It’s a proud moment for the team, though we remain focused on our first solar encounter, which begins on Oct. 31.”

Parker Solar Probe is also expected to break the record for fastest spacecraft traveling relative to the Sun on Oct. 29 at about 10:54 p.m. EDT. The current record for heliocentric speed is 153,454 miles per hour, set by Helios 2 in April 1976.

We ain’t seen nothin’ yet. This is only the first orbit. With each later orbit the spacecraft will zip past the Sun faster, and closer.

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Russia to disassemble the next Soyuz rocket scheduled for launch

9:08 am

In order to make sure it was assembled correctly and will separate properly, Russian engineers plan to disassemble the four strap-on boosters of the next scheduled Soyuz rocket and then put it back together for its November launch.

I wonder however if they are studying this assembly process to figure out why the manned Soyuz rocket that failed on October 11 was assembled badly so that they can revise that process. It sounds like they are merely checking to make sure the rocket is put together right, without figuring out what went wrong.

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China successfully launches Chinese/French ocean research satellite

9:02 am

A joint Chinese/French ocean research satellite was successfully launched by China today using its Long March 2C rocket.

The leaders in the 2018 launch race:

30 China
17 SpaceX
9 Russia
8 ULA
7 Europe (Arianespace)

China now leads the U.S. 30 to 26 in the national rankings. Its 30 launches this year smashes its previous launch high of 20 successful launches, and suggests that China is going to come close to its predicted 40 launches for 2018.

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Hubble resumes science operations

8:27 am

After three weeks of successful trouble-shooting of a backup gyroscope scientists have now returned the Hubble Space Telescope to full science operations.

Everyone should understand that this situation is now very temporary. Hubble no longer has any backup gyroscopes. If another fails, they will have to go to a one-gyroscope mode, holding the second working gyroscope back as a back-up, in order to extend the telescope’s life as much as possilbe. In that mode the telescope can operate for a significant period, but will have limited capabilities.

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Pakistan enlists China to launch its 1st astronaut by 2022

8:54 am

The new colonial movement: Pakistan has begun negotiations with China to launch its first astronaut by 2022.

Plans are afoot to send Pakistan’s first astronaut to space with China’s help in 2022, the country’s Information Minister Fawad Chaudhry announced on Thursday, saying the proposal got a nod from the federal Cabinet at a meeting chaired by Prime Minister Imran Khan ahead of his maiden visit to China next week.

An agreement between Pakistan Space and Upper Atmosphere Research Commission (SUPARCO) and a Chinese company has already been signed for the ambitious mission, Lahore-based The News daily cited Chaudhry as telling a press conference after Thursday’s Cabinet meeting. There’s no official confirmation of the project from Chinese officials yet.

Last December, Pakistan’s Air Chief Marshal Sohail Aman had also said that Islamabad will collaborate with China to send astronauts to space, Karachi-based ARY News reported.

There is zero doubt that Pakistan’s leaders started these talks after learning of India’s plans to launch its own manned mission in 2022. Unlike India, a religiously tolerant capitalist democracy, Pakistan (an Islamic dictatorship) does not have its own space capabilities. To compete with India it will need to hire someone else to provide the rocket and manned spacecraft.

China has said it wants to fly international visitors to its space station, expected to be in operation in 2022. This deal fits the needs of both nations, perfectly.

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Chinese smallsat rocket fails to make orbit

8:16 am

One of the handful of so-called private companies being used by China’s military to develop smallsat solid-fueled rockets, LandSpace, today tried to put its first satellite into orbit, and failed.

The satellite was for Chinese television, but I find the links to China’s military for this rocket too many to dismiss. I initially saw them as direct competition with the new smallsat rocket companies developing in the west, but I got suspicious when I found they all had remarkably similar names (LandSpace, OneSpace, Exspace, ISpace) and that all seemed to be using solid-fueled rockets, most of which were being launched from mobile launchers. Such rockets are almost always developed for military purposes.

These companies might be providing China some commercial services, but they are probably also aimed at giving its military a mobile orbital rocket that can do other things as well.

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Hayabusa-2’s highest resolution image so far

10:11 am

Ryugu up close

The Hayabusa-2 science team has released the highest resolution image taken by the spacecraft so far. The image on the right, reduced to post here, is that image. Click on it to see the full resolution version.

The image resolution is about 4.6mm/pixel. This is the highest resolution image that Hayabusa2 has taken so far and even small rocks with a diameter of 2 – 3cm are clearly visible. The maximum resolution of AMICA –the camera at the time of the first Hayabusa mission— was 6 mm/pixel, so even its resolution has now been exceeded. As the image captured of the asteroid surface from the spacecraft, it will be one of the highest resolution to be taken of Ryugu (MINERVA-II1 and MASCOT which landed on the surface, have captured even higher resolution images).

A feature from the image is the lack of regolith (sandy substance). This was suspected to be true from the images obtained so far, but it is more clearly seen in this high resolution photograph. There is also a collection of pebbles with different colors, which may be evidence that the surface material of Ryugu is mixed.

This was taken during the second landing rehearsal about two weeks ago. The image clearly shows the rubble pile that is Ryugu, lacking anything but cemented rocks. It also illustrates the landing problem faced by Hayabusa-2’s engineers. They need a flat smooth area to land, and they have not really found one that fits their needs.

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Intriguing water-ice cloud on Mars

9:41 am

Water-ice cloud over Arsia Mons

An extended water-ice cloud has formed recently on the downwind side of the large Martian volcano Arsia Mons. The image above, cropped to post here, was taken by Europe’s Mars Express orbiter, and shows the cloud extending westward from the volcano.

In spite of its location, this atmospheric feature is not linked to volcanic activity but is rather a water ice cloud driven by the influence of the volcano’s leeward slope on the air flow – something that scientists call an orographic or lee cloud – and a regular phenomenon in this region.

The cloud can be seen in this view taken on 10 October by the Visual Monitoring Camera (VMC) on Mars Express – which has imaged it hundreds of times over the past few weeks – as the white, elongated feature extending 1500 km westward of Arsia Mons. As a comparison, the cone-shaped volcano has a diameter of about 250 km.

… Mars just experienced its northern hemisphere winter solstice on 16 October. In the months leading up to the solstice, most cloud activity disappears over big volcanoes like Arsia Mons; its summit is covered with clouds throughout the rest of the martian year.

However, a seasonally recurrent water ice cloud, like the one shown in this image, is known to form along the southwest flank of this volcano – it was previously observed by Mars Express and other missions in 2009, 2012 and 2015.

What the article does not mention about these seasonal water ice clouds is that they are thought to be related to the evidence of past glaciers on the volcano’s western slopes. Some scientists believe that significant underground ice, left over from those glaciers, is what causes the clouds.

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First ULA Vulcan launch delayed a year to 2021

9:29 am

The first ULA Vulcan launch has been delayed a year to 2021.

In an interview [at a recent conference, John Elbon, chief operating officer of ULA,] said the shift in the first launch to April 2021 is linked to the requirements of the LSA award from the Air Force. “As the procurement schedule was laid out, the Air Force schedule changed, and we synced up with that,” he said, adding that the company was moving ahead with more aggressive internal schedules for Vulcan’s development.

“While ULA was on schedule from a technical standpoint to meet 2020 target, once we reviewed the Air Force’s timeline in the LSA proposals & incorporated [additional] requirements into our plan, we aligned #VulcanCentaur launch dates to meet the Air Force schedule,” the company tweeted.

The LSA awards were Air Force subsidies ranging from $500 to $1 billion given to ULA, Northrop Grumman, and Blue Origin last week to support development of their new rockets. And just as Blue Origin was forced to immediately delay its first New Glenn launch after obtaining this award, so has ULA.

In other words, gaining big development money from the Air Force forced both companies to delay their launch to meet the Air Force’s demands, something that SpaceX apparently decided not to do.

We shall see in the coming years which approach works best for making the most money. I favor SpaceX.

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SpaceX lands another Falcon Heavy contract; seeks big loan

9:20 am

Capitalism in space: SpaceX has signed another Falcon Heavy launch contract, this time with the satellite company Viasat.

What is interesting here is that Viasat had previously had a Falcon Heavy contract, but switched to the Ariane 5 because of the long delays leading to the rocket’s first launch. That they have returned indicates that there is a strong need for a rocket that can lift this kind of large payload, even as a large part of the satellite industry is also miniaturizing.

In related news, SpaceX is reported to be negotiating for a half billion dollar loan.

Elon Musk’s rocket company SpaceX is seeking to borrow $500 million in the leveraged loan market, according to three people familiar with the matter.

Goldman Sachs Group Inc. is leading the talks with potential investors this week, said the people, who asked not to be identified because plan is private. Spokesmen for Space Exploration Technologies Corp. and Goldman Sachs declined to comment.

This is especially interesting, based on the company’s philosophy to avoid taking government development money. While Blue Origin, Northrop Grumman, and ULA recently accepted Air Force rocket development subsidies ranging from half a billion to a billion dollars for future military launches, SpaceX did not. Some reports suggested this meant the Air Force was going to exclude SpaceX in future contract bidding, a suggestion that I think is patently false.

This loan probably relates to development of the BFR, and will allow SpaceX to build it according to its desires, not the Air Force’s.

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Astronomers confirm Earth has satellite dust clouds

9:05 am

Astronomers have confirmed the existence of two satellite dust clouds at the Earth’s L4 and L5 Lagrange points 250 thousand miles away, first spotted back in the 1960s.

The images they obtained show polarised light reflected from dust, extending well outside the field of view of the camera lens. The observed pattern matches predictions made by the same group of researchers in an earlier paper and is consistent with the earliest observations of the Kordylewski clouds six decades ago. Horváth’s group were able to rule out optical artefacts and other effects, meaning that the presence of the dust cloud is confirmed.

Since these locations are potential space station locations, determining the existence and nature of these dust clouds is important.

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Changes on the slopes of Olympus Mons?

12:15 pm

Dark splotches on slopes of Olympus Mons

Cool image time! In reviewing the many images from the October image release from the high resolution camera on Mars Reconnaissance Orbiter (MRO), I came across two images, here and here, labeled “Change Detection in Olympus Maculae.” The image on the right is a cropped and reduced section of the first image, centered on the area of most interest. If you click on the image you can see the full photograph.

I did some research to see if I could find the changes indicated by this title. The location is an area on the outer western slopes of Olympus Mons, the largest volcano in the solar system. I found that MRO has taken images of this location twice before, in 2007, in 2009. I spent about fifteen minutes trying to find something that had changed, but was unable to locate anything, other than what look like a few wind-blown streaks probably caused by dust devils. I suspect I do not know what to look for.

Maybe my readers can spend some time and find these changes. If you do, please let us know in a comment.

Nonetheless, these two images revealed an area on the slopes of Olympus Mons that is most intriguing. It appears that there is a whole string of these dark splotches in this area, all of which have been carefully imaged by MRO several times. These splotches, along with the image titles, suggest that this might be area where there is activity from below that is causing the surface to darken. Could it be volcanic? Not likely. More likely is that there is underground frozen water located here, and like the spiders at the poles, this ice periodically pushes up as it sublimates to burst out as gas, and in the process darkens the surface.

If this guess on my part is correct, it suggests that this is an area in the mid-latitudes of Mars where water might be reasonably accessible. For future settlers this would be a significant discovery. And if my guess is wrong no matter. The features are puzzling, which explains why the scientists are aiming MRO at them repeatedly.

If I was to writing my science fiction novel Pioneer today, this is where I would have placed the discovery of the body of the Sanford Addiono, the astronaut who had disappeared on an asteroid near the orbit of Jupiter forty-six years previously. As the press release for the book’s release noted,

How Addiono had gotten to Mars from a distant lost asteroid–without a spaceship–was baffling.

That riddle was magnified by what Addiono had brought back with him. Among his effects was a six-fingered robot hand that had clearly been made by some alien civilization, along with a recorder and memo book describing what Addiono had seen.

What better place to put the start of this mystery but here, on a dark splotch on the slopes of Olympus Mons that also indicates its own geological mystery, a place some underground activity might be reshaping the surface of Mars.

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More successful image downloads for Curiosity

11:24 am

It increasingly looks like the computer download issues on the Mars rover Curiosity are being solved. For the first time in more than five weeks engineers were able to download numerous images from both of the rovers hazard avoidance cameras as well as both of its navigation cameras. More importantly, for the first time in five weeks they were able to do this two days in a row.

The Curiosity science team has as yet released no press update, but it appears that they are carefully testing the computer to make sure it is functioning properly. This computer was the rover’s original primary computer, but when it had problems several months after landing they had switched to the back-up computer. When that back-up computer had problems sending data back to Earth in September they decided to switch back to the original computer, which had been thought fixed.

Because of the original issues with the primary computer I suspect they are simply proceeding very slowly, so as not to have something fail in a manner that will not be recoverable. First they used it two weeks ago to upload a handful of small images from the hazard avoidance and navigation cameras. Then, after a week of analysis they uploaded a few more images from these cameras.

Then, after another week of analysis, they uploaded a full complement of images from all four cameras, and they did it two days in a row, suggesting that they are increasingly confident that the computer is operating correctly.

I expect a press release updating us on the specifics any time now.

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Hayabusa-2 completes third Ryugu touchdown rehearsal

9:34 am

Ryugu up close

Hayabusa-2 today completed its third Ryugu touchdown rehearsal.

According to their operation schedule, they were planning to descent to about 20 meters of the surface, about 65 feet. The image on the right is the closest image taken during the rehearsal. You can see the shadow of Hayabusa-2 in the middle of the frame.

They have not released any information about the rehearsal results. The key here is how accurately they were able to get Hayabusa-2 to approach the asteroid’s largest flat spot, a tiny 20 meter wide spot less than half the size of their original planned landing diameter. From the image, it is unclear how successful they were.

They will now spend the next two months analyzing the data from their landing rehearsals in preparation for a landing attempt in January. During this time observations will be reduced because the Sun will be between the Earth and the asteroid.

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Virgin Orbit reveals LauncherOne rocket attached to its 747 launch vehicle

9:21 am

Capitalism in space: Virgin Orbit has begun fit tests of its LauncherOne rocket attached to its 747 launch vehicle.

This suggests that they are getting close to the first taxi and flight tests of this smallsat rocket, originally promised for the summer that just ended.

I am increasingly confident that my 2016 prediction that Virgin Orbit’s LauncherOne will reach space before Virgin Galactic’s SpaceShipTwo will be correct, even though the former has been in serious development only about four years compared to the latter’s now fifteen year history of no space flights.

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Blue Origin’s ship for its 1st stage landings arrives in Florida

8:57 am

Capitalism in space: The ship that Blue Origin plans to restructure into a landing platform for the first stages of its New Glenn orbital rocket has docked in a Florida port.

The 600-foot cargo ship the Stena Freighter arrived in the Port of Pensacola on Thursday after making a transatlantic voyage from Portugal.

Blue Origin, the private rocket company started by Amazon CEO Jeff Bezos, will be using the ship as a landing platform for the company’s New Glenn rocket design expected to lift off in 2020 for its first test flight.

Blue Origin CEO Bob Smith confirmed during the Aerospace Futures Alliance Summit on Oct. 10 that the Stena Freight would be used to land rockets, according to a report from the technology news website GeekWire.

The article does not provide much more information, other than a much bigger public announcement is planned about this in about a week.

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Parker looks back at Earth

8:51 am

Earth and Moon, taken by the Parker Solar Probe

The Parker Solar Probe, flying inward towards its first close fly-by of the Sun, has looked back at the Earth and snapped its picture.

The image was captured by the WISPR (Wide-field Imager for Solar Probe) instrument, which is the only imaging instrument on board Parker Solar Probe. During science phases, WISPR sees structures within the Sun’s atmosphere, the corona, before they pass over the spacecraft.

…Zooming in on Earth reveals a slight bulge on the right side: that is the Moon, just peeking out from behind Earth. At the time the image was taken, Parker Solar Probe was about 27 million miles from Earth.

The importance of this image is that it demonstrates that the spacecraft’s camera is working properly, and that the spacecraft itself can point accurately.

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Russian Soyuz rocket launches military satellite

8:39 am

Only two weeks since a Soyuz rocket failure during a manned launch the Russians have resumed Soyuz launches with the lift-off today of a military reconnaissance satellite from their Plesetsk spaceport.

The article provides this extra piece of information about the failure two weeks ago:

While investigations into the failure have not yet concluded, initial reports have suggested that one of the four boosters that comprise the first stage of Soyuz failed to separate cleanly. This is believed to have made contact with the second stage, puncturing one of its propellant tanks and throwing the rocket out of control.

This resulted in thrust termination – the rocket’s engines being shut down as a safety measure – and triggered the spacecraft’s automated abort mechanism.

No root cause has been announced. However, speculation initially pointed at a failure of a valve to open that would have vented residual oxidizer from the booster, pushing it away from the vehicle.

Later reports have suggested that the booster was installed incorrectly when the rocket was assembled – having been forced into a mounting lug that was bent out of shape in the process. A similar anomaly reportedly occurred during an unmanned launch in March 1986. The Russian State Commission into the MS-10 failure is expected to deliver its report at the end of the month. [emphasis mine]

The launch does bode well for resuming manned launches in December, as originally planned. That it is possible that this problem has occurred previously and has reoccurred is not good. One would have thought they would have instituted engineering design changes to prevent a repeat.

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Stripes on Dione

2:55 pm

Using data produced by Cassini while orbiting Saturn scientists have discovered long narrow stripes on the moon Dione.

Dione’s linear virgae are generally long (10 to 100s of kilometers), narrow (less than 5 kilometers) and brighter than the surrounding terrains. The stripes are parallel, appear to overlie other features and are unaffected by topography, suggesting they are among the youngest surfaces on Dione.

“Their orientation, parallel to the equator, and linearity are unlike anything else we’ve seen in the Solar System,” Patthoff said. “If they are caused by an exogenic source, that could be another means to bring new material to Dione. That material could have implications for the biological potential of Dione’s subsurface ocean.”

That they cut across the topography implies strongly that they were laid down from above, after the surface irregularities were created.

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Pluto orbiter mission could also explore Kuiper belt

1:16 pm

An analysis by scientists of the orbital mechanics surrounding Pluto and Charon, combined with the use of an ion engine similar to that used by the asteroid probe Dawn, suggests that an orbiter sent to Pluto could also break from from that planet to travel out into the Kuiper Belt and explore additional objects there.

The team first discovered how numerous key scientific objectives can be met using gravity assists from Pluto’s giant satellite, Charon, rather than propellant, allowing the orbiter to change its orbit repeatedly to investigate various aspects of Pluto, its atmosphere, its five moons, and its solar wind interactions for up to several years. The second achievement demonstrates that, upon completing its science objectives at Pluto, the orbiter can then use Charon’s gravity to escape the system without using fuel, slinging the spacecraft into the Kuiper Belt to use the same electric propulsion system it used to enter Pluto orbit to then explore other dwarf planets and smaller Kuiper Belt bodies.

“This is groundbreaking,” said Stern. “Previously, NASA and the planetary science community thought the next step in Kuiper Belt exploration would be to choose between ‘going deep’ in the study of Pluto and its moons or ‘going broad’ by examining smaller Kuiper Belt objects and another dwarf planet for comparison to Pluto. The planetary science community debated which was the right next step. Our studies show you can do both in a single mission: it’s a game changer.”

The key here is a willingness to make increased use of the ion-type engine used by Dawn in its journey from the asteroids Vesta and Ceres. Such a probe could spend decades traveling from one Kuiper Belt object to the next.

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Active signaling to Opportunity to end

6:40 am

While NASA will continue to listen for activity from Opportunity for many more months, its active effort to signal the Mars rover is about to end.

After more than a month, Opportunity has not responded to those commands, and that active listening effort will soon end. “We intend to keep pinging Opportunity on a daily basis for at least another week or two,” said Lori Glaze, acting director of NASA’s planetary science division, during a presentation Oct. 22 at the annual meeting of the American Astronomical Society’s Division for Planetary Sciences here.

Glaze said that a factor in ending the active listening campaign is to prepare for the landing of the InSight spacecraft on Mars Nov. 26. “We want to wind that down before InSight gets to Mars and make sure all our orbital assets are focused on a successful landing of InSight,” she said.

That schedule is consistent with previous plans for attempting to restore contact with Opportunity. NASA said Aug. 30 that, once skies cleared sufficiently, it would attempt active listening for 45 days. “If we do not hear back after 45 days, the team will be forced to conclude that the sun-blocking dust and the Martian cold have conspired to cause some type of fault from which the rover will more than likely not recover,” John Callas, Opportunity project manager, said in a statement outlining those plans.

I would not be surprised if they do try to signal the rover a few more times, in January after the busy fall period when there are a lot of planetary probes needing access to the Deep Space Network. Even so, it appears the rover’s life is finally at an end, fourteen years past its originally planned lifespan of only 90 days.

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Vector raises $70 million more in investment capital

9:11 am

Capitalism in space: The smallsat rocket company Vector has successfully raised an additional $70 million in investment capital.

The increased funds bodes well for the company, but I am becoming increasingly concerned the company is more sizzle than steak. From the article:

With this round of funding, Vector plans to expand its sales and marketing teams. And the goal is to double its footprint in Silicon Valley. Vector is also expecting to break ground on a new state-of-the-art factory in Tucson. And Vector is advancing towards a first orbital attempt set to take place from the Pacific Spaceport Complex-Alaska soon.

Their original plan was to complete five test launches leading up to their first orbital try. Only two of those launches have flown, and it appears they are aiming to make the third launch orbital, with no clear schedule indicated. More significantly, it appears that they are not using the additional money for rocket development but for “sales and marketing.” Shouldn’t that come after the rocket is operational?

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Final 2018 SpaceX launch schedule

8:33 am

Link here. The article describes in detail SpaceX’s schedule of launches through the end of 2018, which appears now to be firming up. Several take-aways:

  • They are going to attempt for the first time the third launch of first stage booster.
  • In one of these launches, the first stage will not be recovered, even though it is a block 5.
  • The second Falcon Heavy launch has now been definitely delayed to early 2019.

A look at the overall launch schedule shows that the two Falcon Heavy launches that have been pending and were originally set for the last quarter of 2018 are now set for “early 2019.” This full schedule also lists the first unmanned flight of the Dragon manned capsule for January.

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Hubble gyro problem appears fixed

8:18 am

Engineers have apparently pinpointed and fixed the issue that was causing the Hubble Space Telescope’s last back up gyroscope to operate incorrectly, making it likely that the telescope will return to full normal operations shortly.

In an attempt to correct the erroneously high rates produced by the backup gyro, the Hubble operations team executed a running restart of the gyro on Oct. 16. This procedure turned the gyro off for one second, and then restarted it before the wheel spun down. The intention was to clear any faults that may have occurred during startup on Oct. 6, after the gyro had been off for more than 7.5 years. However, the resulting data showed no improvement in the gyro’s performance.

On Oct. 18, the Hubble operations team commanded a series of spacecraft maneuvers, or turns, in opposite directions to attempt to clear any blockage that may have caused the float to be off-center and produce the exceedingly high rates. During each maneuver, the gyro was switched from high mode to low mode to dislodge any blockage that may have accumulated around the float.

Following the Oct. 18 maneuvers, the team noticed a significant reduction in the high rates, allowing rates to be measured in low mode for brief periods of time. On Oct. 19, the operations team commanded Hubble to perform additional maneuvers and gyro mode switches, which appear to have cleared the issue. Gyro rates now look normal in both high and low mode.

This is wonderful news, in that it means the telescope will once again be able to point accurately enough to continue to take sharp images across the entire sky. It also highlights how close we are now to the telescope’s demise, since it no longer has a back-up gyroscope. With the next failure, which will occur eventually, Hubble will descend into one gyroscope operations, holding off its second working gyro as a backup.

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Ariane 5 launches BepiColumbo to Mercury

12:48 am

An Arianespace Ariane 5 rocket successfully launched the joint European/Japanese BepiColumbo mission to Mercury this weekend.

BepiColombo consists of two orbiters: Japan’s Mercury Magnetospheric Orbiter (MMO) and ESA’s Mercury Planetary Orbiter (MPO), both of which will be carried together by the Mercury Transport Module (MTM).

While MPO will go into an approximately 400 x 1500 km mapping orbit around Mercury, MMO will enter a highly elliptical orbit to study the planet’s enigmatically strong magnetic field.

The leaders in the 2018 launch race:

28 China
17 SpaceX
8 Russia
8 ULA
7 Europe (Arianespace)

China still leads the U.S. in the national rankings 28 to 26.

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First interplanetary image from a cubesat

12:39 am

One of the two MarCO cubesats launched with the InSight Mars lander has successfully taken its first picture of Mars, the first such image ever taken by an interplanetary cubesat.

The image itself is not that interesting, with Mars not much more than a dot. What makes this significant is that it proves that a small, inexpensive cubesat can be built with the capability to accurately point and take photographs during an interplanetary mission. This means that the entire field of interplanetary probes is prime for major changes, shifting from big expensive and rarely launched spacecraft to small inexpensive cubesats launching frequently and it large numbers.

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