Tag: spaceflight

Jupiter in glorious color

9:21 am

Jupiter in glorious color
Click for full image.

Cool image time! The photograph on the right, reduced to post here, was color enhanced by citizen scientist Emma Walimaki from the original Juno image in order to bring out the features and storms visible in the upper storm layers of Jupiter.

The photo was taken during Juno’s 25th close fly-by of the gas giant, and thus we are only seeing a small portion of Jupiter’s sphere.

In comparing this image with the original, it appears that Walimaki simply made the colors that were already there brighter and more distinctive. Thus, these colors represent real data. Jupiter’s cloud tops are really blue, orange, tan, and brown, unlike Earth’s consistently and boringly white water clouds.

3 comments

Blue Origin update on New Shepard and New Glenn

9:03 am

Capitalism in space: Blue Origin officials today provided an update on both its suborbital New Shepard spacecraft as well as its New Glenn orbital rocket.

First, the company’s CEO, Bob Smith, was quoted as saying that New Shepard would fly three more flights unmanned prior to its first manned flight, and that manned flight will occur before the end of this year.

Smith has made similar promises in the past, so if you are skeptical it is entirely understandable. They have already flown their second New Shepard craft six times successfully. It is unclear if they are they going with a new craft for these manned flights, or using this older test vehicle.

Second, the company released two short public relations videos touting the completion of the first fairing for their orbital New Glenn rocket. In addition, they still expect production of that rocket’s BE-4 engine to begin this year, with a first maiden flight next year.

That predicted launch date still fits the revamped schedule they announced back in October 2018, which suggests they have not experienced any major issues. The next year however will tell the tale.

5 comments

Summer at the Martian North Pole

1:20 pm

Buzzell pedestal crater in context with polar icecap scarp
Cool image time! The image above, cropped, reduced, and brighten-enhanced to post here, was taken by the high resolution camera of Mars Reconnaissance Orbiter (MRO) on December 26, 2019 of the dunes just below the 1,500 to 3,000 foot high scarp that marks the edge of the Martian north polar icecap. I have brought up the brightness of the dune area to bring out the details.

This one image shows a range a very active features at the Martian north pole. At this scarp scientists have routinely photographed avalanches every Martian spring, as they have been occurring, caused by the warmth of sunlight hitting this cliff wall and causing large sections to break off. As Shane Byrne of the Lunar and Planetary Lab University of Arizona explained in my September 2019 article,

On Mars half of the images we take in the right season contain an avalanche. There’s one image that has four avalanches going off simultaneously at different parts of the scarp. There must be hundreds to thousands of these events each day.

Buzzell dunes, March 19, 2019
Click for full image.

On the left side of the image is an area of dunes that Candice Hansen of the Planetary Science Institute in Arizona has dubbed “Buzzell.” As spring arrives here, she has MRO regularly take images of this site (as well as about a dozen others) to monitor the changes that occur with the arrival of sunlight on the vast dune seas that surround that polar icecap.

The image to the right zooms in on one particular distinct feature, a pedestal crater, surrounded by dunes, that I have labeled on the image above. This image was taken just as spring began, with the Sun only five degrees above the horizon. At that time the dunes and pedestal crater were mantled by a frozen layer of translucent carbon dioxide that had fallen as dry ice snow during the sunless winter and then sublimates away each Martian summer.

Since March I have periodically posted updates to monitor the disappearance of that CO2 layer. (See for example the posts on August 2019 and November 2019.) Below are two more images, showing the ongoing changes to this area from early to late summer.
» Read more

2 comments

ExoMars2020 parachute tests delayed until late March

8:59 am

The European Space Agency (ESA) has decided to delay until late March the next high altitude tests of the revamped ExoMars2020 parachutes, despite the success of recent ground tests.

The tests of the 15-meter-diameter supersonic and 35-meter-wide subsonic parachutes—an essential part of the entry, descent and landing phase of the mission—had been scheduled for December and February. The delay comes despite six ground tests demonstrating successful parachute extraction – the point at which damage was caused in earlier, failed high altitude tests.

Both tests need to be successful for the go-ahead for launch of 300-kilogram Rosalind Franklin rover during the July 25 to Aug. 13 Mars launch window. Any failure would mean a wait of 26 months for the next launch window, opening late 2022.

There will be a meeting next week of the project’s top management, from both Russia and Europe, and I strongly suspect that they are going to decide to delay launch to the 2022 launch window. Not only have the parachutes not been tested successfully at high altitude, they recently discovered an issue with the glue holding the solar panel hinges on the ExoMars Rosalind Franklin rover.

One comment

Astra scrubs first orbital launch

1:47 pm

Capitalism in space: Astra, competing for DARPA launch challenge, is about to attempt the first orbital launch of its Rocket 3.0. Live stream of launch embedded below.

The rocket is carrying three cubesats. DARPA’s goal is for the development of a rocket system that can very quickly go to launch. In this case Astra only found out what its payloads were about a month before launch, and had to proceed to launch in mere weeks. They will win $2 million. They can get another $10 million if they launch again by the end of March.

The launch went into an unplanned hold 53 seconds before launch. Their launch window extends to 6:30 pm (Eastern), so there is still a chance they can lift-off today.

They have now scrubbed the launch. No word yet on when they will reschedule. Their failure to launch today however means they will not win the $2 million launch challenge. It was unclear from the broadcast if they would win the $10 million if they manage two launches by the end of March. (According to this website, that award is also lost.) It was even unclear whether they would even try to launch their three cubesat payloads.

In fact, as I watched the post-scrub interviews, I began to get suspicious about this whole event. Astra has been very secretive about its work. They have never successfully launched before. Could this merely have been a demonstration that they could get a rocket set up on an empty concrete pad, with payload, in only a matter of weeks, knowing that the launch was simply impossible? I have no idea, but I do wonder.

My suspicions do not mean Astra won’t launch eventually. I just now have doubts they ever were ready today.

One comment

OSIRIS-REx bypasses laser altimeter issue

1:40 pm

The science team for OSIRIS-REx has figured out a bypass for the failure of one of the spacecraft’s laser altimeters, originally used during close flyovers of the surface of the rubble-pile asteroid Bennu.

The mission has made the decision to use OLA’s High Energy Laser Transmitter (HELT) to provide the ranging data to focus PolyCam during the Mar. 3 flyover of site Nightingale. OLA consists of two laser subsystems, the HELT and the Low-Energy Laser Transmitter (LELT). OLA’s LELT was originally scheduled to provide these data, however, as a result of the anomaly that occurred during the Recon B site Osprey flyover, the team has determined that the LELT system is no longer operable. Despite the LELT’s condition, the HELT system has continued to operate as expected, and will be used to focus PolyCam for the remaining reconnaissance passes.

According to Erin Morton, head of communications for OSIRIS-REx in the Principal Investigator’s Office, the failure of LELT will not impact the touch-and-go sample grab, presently scheduled for sometime in August.

We don’t need OLA [either the low or high energy transmitters] for the sample collection event. OLA’s main purpose was to collect the altimetry data needed to make topographical maps for the sample site decision. It successfully accomplished that last year – which means that the instrument has completed all of its primary mission requirements. OLA isn’t used for navigation.

Instead, they are using an autonomous system that compares previous high resolution images with images taken during descent. In addition, they have a lidar system available as well.

One comment

Glacial breakup on Mars

12:15 pm

glacial breakup on Mars
Click for full image.

Cool image time! The photograph to the right, cropped and reduced to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter on December 22, 2019 and was titled “Contact Between Debris Apron and Upper Plains in Deuteronilus Mensae”.

The section of the full image that I have focused on shows what appears to be the downhill break-up of the surface debris covering an underlying water ice glacier. The grade is downhill to the south.

I am confident that this is buried glacial material based on recent research:

Both of these reports found lots of evidence of shallow ice in Deuteronilus Mensae, a region of chaos terrain in the transition zone between the Martian northern lowlands and the southern highlands.

With this image we see what appears to be the slippage of that ice downslope, causing breakage and cracks on the surface, with much of that surface made up of the dust and debris that covers the ice and protects it. Towards the bottom of the image it even appears that the disappearing ice is unveiling the existence of a bunch of buried bedrock mesas, typical of chaos terrain, previously hidden by the ice because it filled the surrounding canyons.

Below is a close-up of the photograph’s most interesting area of break-up.
» Read more

One comment

SLS likely launch mid- to late-2021

9:33 am

According to comments by one NASA official last week, the first flight of SLS will likely not occur until the middle or late 2021, a further delay than the most recent prediction of April 2021.

NASA Associate Administrator Steve Jurczyk said on Friday that the first launch of the Space Launch System (SLS) with an uncrewed Orion spacecraft, Artemis I, will take place in mid-late 2021. He also said NASA will award contracts “within weeks” for the Human Landing System (HLS) as NASA strives to meet the Trump Administration’s goal of landing astronauts on the Moon by 2024 — the Artemis program. Embracing Artemis is the first step towards a trillion dollar cislunar space economy according to space industry executive Tory Bruno who spoke at the same conference in Laurel, MD. He urged everyone to stop “squabbling” and support the program.

There is a lot more in the article, including a lot of advocacy by Jurczyk and others for Lunar Gateway. I also found certain aspects of the Trump administration’s effort to make their 2024 target date for manned lunar landing, specifically related to the quick development of that Human Landing System (HLS), somewhat concerning:

We can’t thrash on the requirements. So on HLS, we said 90 days, we’re going to nail down the requirements. And if we can’t agree, NASA’s just going to tell you, use ours. We’re going to negotiate technical standards. Either use ours or show equivalency to yours, but after 90 days if we can’t get agreement, you’re going to use ours. … 90 days and we’re done with Human Landing System requirements.

I am all for doing it fast but one needs to also do it smart. I wonder about this approach.

Jurczyk noted that the administration and NASA are doing a lot of work outlining their plans for the whole Artemis exploration program following that lunar landing, and hope to reveal it by the end of March. Since this program still remains unfunded by Congress, that announcement will be part of the political campaign to obtain those funds.

4 comments

Chang’e-4 and Yutu-2 complete 15th lunar day on Moon

9:17 am

Chinese engineers have put both Chang’e-4 and Yutu-2 into sleep mode after successfully completing their fifteenth lunar day on the far side of the Moon.

According to the story from China’s state-run press, Yutu-2 has now traveled just under 400 meters, or about 1,311 feet. We do not have a map outlining its total path, though past data suggests it has generally traveled westward away from Chang’e-4. Other than this detail, the story provides little other information.

Leave a comment

Explosion during static fire test of SpaceX’s Starship-SN1 prototype

12:06 am

Capitalism in space: It appears that about two seconds into a static fire engine test tonight of SpaceX’s Starship-SN1 prototype, something went wrong, there was an explosion, the prototype suddenly lifted into the air and then crashed to the ground in a bigger explosion.

The video below shows the event three times. We shall have to await word from SpaceX as to what happened. So far it appears that no one was hurt.

23 comments

Falcon Heavy wins launch contract for NASA’s Psyche asteroid mission

11:57 pm

Capitalism in space: NASA today awarded the launch contract for its Psyche asteroid mission, set to launch in July 2022, to SpaceX’s Falcon Heavy rocket.

The total bid price was $117 million, which according to the release includes “the launch service and other mission related costs.” Though this is higher than the normal price SpaceX charges for a Falcon Heavy launch ($100 million), it is far lower than the typical price of a ULA launch. Furthermore, Falcon Heavy has more power, so it can get the spacecraft to the asteroid faster.

Leave a comment

Photos prior to MEV-1 docking to Intelsat 901 satellite

10:23 pm

Northrop Grumman has released photos taken by its Mission Extension Vehicle-1 (MEV-1) as it approached the decommissioned geosynchronous communications satellite Intelsat 901, just prior to docking.

As this was the first ever rendezvous and docking with a geosynchronous satellite, these are the first photos ever of such a spacecraft in that orbit. It was also the first docking with a spacecraft not designed for docking. MEV-1 managed it by using the satellite’s engine nozzle as a docking port.

Intelsat 901 has been in orbit for 18 years, and was only decommissioned because it had run out of fuel. From the pictures it looked solid and undamaged, ready to go again.

5 comments

Peering into a Martian pit

1:44 pm

Peering into a pit
Click for full image.

Cool image time! The science team for the high resolution camera on Mars Reconnaissance Orbiter last week released the above image of a pit to the west of the giant volcanoes Arsia and Pavonis Mons. The left image is without any adjustments in exposure. The right image has brightened the pit’s interior to bring out details in order to see what’s there. As planetary scientist Ross Beyer of Ames Research Center noted in his caption:

The floor of the pit appears to be smooth sand and slopes down to the southeast. The hope was to determine if this was an isolated pit, or if it was a skylight into a tunnel, much like skylights in the lava tubes of Hawai’i. We can’t obviously see any tunnels in the visible walls, but they could be in the other walls that aren’t visible.

Wider view of pit
Click for full image.

Because the image has been rotated 180 degrees, north is down. The northern wall of the pit appears to be either very vertical, or overhung. A tunnel might head north from here, but because of the angle of the photograph, this cannot be confirmed.

To the right is a wider look from the full photograph, showing the surrounding terrain, with north now to the top. In line with this pit is a depression that crosses the east-west canyon to the north. This alignment strongly suggests that a fault or fissure exists here, and that an underground void along this fissure line could exist. It also suggests that a deeper and larger void could exist below that larger canyon.

This pit, and the accompanying fissures, were likely caused by crack-widening along these faults, produced as this volcanic region bulged upward.

Map of knowns pits surrounding Arsia Mons

This pit is also one of the many many pits found near these volcanoes. The map to the right shows by the black boxes all the pits documented by the high resolution camera on MRO in the past few years, with this new pit indicated by the white box.

Beginning in November 2018 until November 2019 I was almost doing a monthly post reporting the new pits photographed by MRO. Since November however the number of new pit images dropped. This is not because every pit has been imaged, but because it appears they have completed their initial survey.

Below is a list of all those previous pit posts:
» Read more

2 comments

More SLS launches planned/proposed?

9:48 am

According to this article from Ars Technica, NASA is considering shifting gears in its Artemis lunar program to become more dependent on SLS rather than a mix of SLS and commercial rockets.

The new plan, if implemented, would substantially cut commercially developed rockets—such as SpaceX’s Falcon Heavy and Blue Origin’s New Glenn—back from the Artemis program. Previously, NASA had said it would launch elements of its Human Landing System on commercial rockets, because such vehicles cost much less than the estimated $2 billion rate per launch of the SLS vehicle. Now, perhaps, private rockets may be called upon to launch smaller pieces such as a lunar rover to the Moon’s surface.

The source document, which appears to be very preliminary and which NASA calls “inaccurate”, also calls for four SLS launches leading up to the 2024 lunar landing, something that seems very very unlikely. Not only would it require Boeing to move faster in building additional SLS rockets, something the company has routinely been unable to do, this schedule assumes funding from Congress for SLS, something that remains unclear.

It also appears from the proposed launch schedule that Lunar Gateway is fading from view. This makes great sense, as the Gateway only causes delays and higher costs for any lunar landing program, something the Trump administration clearly wishes to avoid.

5 comments

SpaceX proposing big launch rate increase in Florida

9:31 am

Capitalism in space: According to documents filed with the FCC, SpaceX is planning a big increase in the number of launches from its two launchpads in Florida in the next few years.

SpaceX projects performing 38 launches from Florida in 2020, 30 from SLC-40 and eight from LC-39A. By 2023, the company projects as many as 70 launches, 50 from SLC-40 and 20 from LC-39A, an annual rate that holds steady through 2025. The vast majority would be Falcon 9 launches, although it expects as many as 10 Falcon Heavy launches a year, all from LC-39A.

These numbers include both Dragon cargo and crew launches, Starlink satellite launches, and a variety of other commercial customers, including launches into polar orbits, something that in the past was reserved for Vandenberg on the west coast, not Florida. The launch estimates are also likely high, as they come from an environmental assessment. SpaceX probably wants to get clearance for this many launches, just in case things go far better than expected. They will likely do less, though I would not be surprised if the numbers are still record-setting.

In addition, the documents outline SpaceX’s plans to build a mobile launch tower to accommodate national security payloads that must be installed on their rocket vertically. Falcon Heavy could provide this service, but right now its payloads get installed horizontally.

Leave a comment

Northrop Grumman completes test of Omega rocket 2nd stage

9:11 am

Capitalism in space: Northrop Grumman yesterday successfully executed a static fire test of the second stage of its OmegA rocket, set for first launch next year.

The first two stages are solid rockets, based on the solid rockets used by the space shuttle. They still have to test the liquid-fueled third stage.

The rocket’s development has essentially been funded by the military, and will thus be used mostly by them to launch national security payloads.

One comment

Another professor arrested for lying about working with China

9:38 pm

Another professor, this time from the University of Tennessee, has been arrested for lying about his ties to China in a NASA proposal.

Anming Hu, an associate professor in the department of mechanical, aerospace and biomedical engineering at the university’s flagship Knoxville campus, was charged with three counts of wire fraud and three counts of making false statements…

Prosecutors say Hu defrauded the National Aeronautics and Space Administration by failing to disclose the fact that he was also a professor at the Beijing University of Technology in China. Under federal law, NASA cannot fund or give grant money to Chinese-owned companies or universities.

According to the indictment, as the University of Tennessee last December was preparing a proposal on Hu’s behalf for a NASA-funded project, Hu provided false assurances to the school that he was not part of any business collaboration involving China.

I wonder how much technical information he passed to China’s space effort.

4 comments

The coming small satellite revolution

1:41 pm

Today I received a press release from the Universities Space Research Association (USRA), announcing a half-day symposium in Washington, D.C. on March 26, 2020 entitled ““The SmallSat Revolution: Doing More with Less.” The announcement was an invitation for the working press to register and attend, noting that the speakers will include, among others, Thomas Zurbuchen, NASA’s associate administrator science, Jeffrey Mamber, president of NanoRacks, and Patricia Cooper of SpaceX.

As interesting as this might sound at first glance, I will not attend. For one thing, it is on the other side of the continent, and I can’t afford to fly cross country for such a short meeting. For another, I don’t see the point. I attended a lot of these DC symposiums when I lived in Maryland, and though they were often very educational and the free food (paid for almost always by the taxpayer) was always enjoyable, I routinely found them somewhat lacking in newsworthy content.

Thirdly, and most important, yesterday I attended a much more newsworthy one day conference here in Tucson on exactly the same subject, dubbed the Arizona Academic CubeSat Symposium. Unlike the Washington event above — which will likely be a mostly superficial look at the burgeoning cubesat industry — yesterday’s symposium was focused on letting students and scientists describe actual and very ambitious cubesat projects presently under construction or design.

In less than seven hours I saw the following:
» Read more

9 comments

VIPER lunar rover delayed, NASA seeks new bids for delivering it to Moon

10:29 am

NASA earlier this week revealed that it is delaying the launch of its VIPER lunar rover until 2023, even as it announced that it is seeking new bids from commercial companies for delivering it to Moon.

In the past two months NASA has apparently been trying to reorganize its unmanned lunar exploration, resulting it a variety of puzzling and sometimes sudden shifts in policy and direction. First they announced they are going to issue a request for proposals, then they delayed it, then they issued it only to withdrew it one week later, with no explanation.

This week’s announcement is another attempt to release this request, accompanied by the delay in VIPER. Though NASA says the delay is to allow “for upgrades so that the rover can conduct longer and more exciting science on the Moon”, I think instead it is to simplify it so that the commercial companies will be able to launch and land it. VIPER’s heritage designs come from an earlier NASA rover project dubbed Resource Prospector that was cancelled because it was going to be too expensive and complex. I think the private companies building landers for such a rover told NASA that they couldn’t handle those heritage designs, forcing NASA to rethink.

If my suspicions are true, this is actually a very good sign. NASA is allowing the private sector to guide it in ways to save money and work more efficiently. That guidance might cause some initial delays as NASA shifts course, but in the long run it will make for a better run operation, costing less while accomplishing more.

3 comments

Chinese scientists publish radar results from Chang’e-4 lander

10:13 am

Layers as seen below ground by Chang'e-4 radar

The new colonial movement: Chinese scientists today published their first ground-penetrating radar results from their Chang’e-4 lander on the far side of the Moon.

Using a ground-penetrating radar instrument on Chang’e-4, researchers have found that the rover is likely sitting on different layers of ejecta—debris from multiple impacts over time that rained down at high velocities to blanket the lunar surface and now fill the crater. “[We] see a very clear sequence of [layers],” says Elena Pettinelli of Roma Tre University in Italy, one of the paper’s co-authors.

The rover’s radar instrument was able to penetrate up to 40 meters below the surface of the moon, more than twice the distance achieved by its predecessor, the Chang’e-3 mission, which landed on the lunar near side in December 2013. Data from the latest mission show three distinct layers beneath the rover: one made of lunar regolith, or soil, down to 12 meters; another made of a mix of smaller and larger rocks down to 24 meters; and a third with both coarse and fine materials extending the rest of the 40-meter depth.

The figure to the right comes from the paper [pdf] Though the layers have not been dated, their differences suggest different past events in the formation of this surface.

These results are excellent, but they also have many uncertainties. Radar can tell you a lot, but the only way you can really ever know anything about what’s below ground is to go there and actually do some digging.

One comment

Starship moved to launch site

9:46 am

Capitalism in space: SpaceX’s Starship-SN1 prototype has been transported to its launch site at Boca Chica in preparation for a series of tests prior to its first launch hop, hopefully to a height of 12 miles.

Whether SN01 is still destined for flight, it’s safe to say that Starship SN01 tank testing could begin in a matter of days — SpaceX currently has early-morning roadblocks indicative of such testing scheduled from February 29th to March 2nd. SpaceX is likely to kick off by filling SN01 with water to check its tanks for leaks, followed by liquid nitrogen – chemically neutral but still incredibly cold. After that, SN01 would likely graduate to Raptor engine installation and a wet dress rehearsal (WDR) with liquid oxygen and methane before moving on to a static fire attempt, if all goes well.

I have embedded below the fold a fifteen minute video showing the transport operation. The pace is slow, so I suggest playing it at 2x normal speed, using the settings.

My immediate thought in watching this video is that SpaceX’s mobile transport vehicle certainly cost far less than the two mobile launchers NASA built for SLS (for a cost of about a billion dollars). In fact, SpaceX’s entire Starship development program will likely cost less than what NASA spent on just its mobile launchers.

» Read more

15 comments

Northrop Grumman completes first robotic docking to a satellite

9:10 am

Capitalism in space: Northrop Grumman’s Mission Extension Vehicle (MEV) on February 25, 2020 completed first robotic docking to a satellite for the express goal of extending that satellite’s life.

This was the first time ever that a commercial robotic satellite docked with a second commercial satellite for such a purpose. It was also the first time such a docking has been done using no government funds.

More information here.

MEV-1 will stay docked to this satellite for about five years, providing it attitude control and guidance. The robot will then move the satellite into a safe graveyard orbit, detach, and be then capable of docking with a second satellite to extend its life as well. Moreover, Northrop Grumman is building a second MEV, with the hope it will be hired to save other satellites.

This achievement lays the foundation for a new stage in commercial space. It proves that unmanned robots can dock with objects in space, both to repair them and extend their life, but also to remove them from orbit and thus reduce the quantity of space junk.

One comment

SpaceX gets approval for Starship/Super Heavy factory in LA

8:18 am

Capitalism in space: Having abandoned plans to build its Starship/Super Heavy rocket factory at the Port of Los Angeles in 2019, SpaceX has changed its mind and now gotten approval for the factory from the LA City Council.

First announced in March 2018 and abandoned for about a year beginning in March 2019, SpaceX has refreshed plans to build giant rocket parts in a California port, simplifying aspects of the original proposal and relying heavily on the fact that steel is far easier to handle than carbon fiber. Now, the company wants to refurbish and repurpose a number of old abandoned buildings already present at Port of LA Berth 240, effectively replicating a somewhat smaller version of the Starship production facilities SpaceX is in the middle of building in South Texas.

With Los Angeles Harbor Commission and City Council approvals both safely in hand, SpaceX’s Port of LA Starship is now officially a question of “when”, not “if”. When the concept first popped back into the public discourse late last month, it came alongside a report from CNBC reporter Michael Sheetz that SpaceX wanted to start building Starship parts as few as 90 days after it reapproached Port officials.

The speed in which SpaceX is moving here is very typical for the company. Bodes well for real test flights both this year and next.

6 comments

Europe considering delaying ExoMars2020 two years

8:09 am

The Europe Space Agency (ESA) is considering delaying the launch of its ExoMars2020 Mars rover two years because of continuing problems with its parachutes.

According to a spokesperson for the European Space Agency (ESA), a “working-level review” for the project was held among ESA and Roscosmos officials in late January, and a preliminary assessment was forwarded to the respective heads of the space agencies, Jan Wörner of ESA and Dmitry Rogozin of Roscosmos, on February 3. “They instructed the respective inspectors general and program chiefs to submit an updated plan and schedule covering all the remaining activities necessary for an authorization to launch,” the ESA spokesperson said. “This plan will be examined by the two agency heads who will meet on 12 March to jointly agree the next steps.”

It appears that the European and Russian officials will make a public announcement about ExoMars next month. Their options include pressing ahead with a launch this year or delaying two years until the next favorable window for a launch to Mars opens. Given multiple issues with the mission, a source said a delay is the most likely option.

The parachutes are not the only problem. They have just discovered during thermal testing that the glue used in the the hinges of the rover’s solar panels comes unstuck.

In August 2019, when the parachute issues were first revealed (after much hemming and hawing by ESA officials), I predicted a 50-50 chance they’d delay. When in September 2019 the problems were found to be more serious than first admitted, I lowered the chances of meeting the 2020 launch date to less than 25%.

Right now I predict that the launch of ExoMars2020 will not occur this summer, but will be delayed until the next Martian launch window in 2022. You heard it here first.

13 comments

Enclosed Martian canyon, filled with ice

1:28 pm

Ice-filled canyon on Mars
Click for full image.

Cool image time! The photo on the right, rotated, cropped, and reduced to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter on November 21, 2019. The uncaptioned image was simply entitled “Ice-filled Graben.”

The location is on the lower flanks of the giant volcano Alba Mons, which in itself sits north of Olympus Mons and the volcanic Tharsis Bulge. The canyon is called a graben because it was formed when a section of the crust slips downward along parallel faults. It does not have the features of a rill, or lava flow, as it starts and stops suddenly. It probably formed due to the rise of the volcano, pulling apart its flanks along faults, causing some sections then to slip downward.

How do the scientists know this is ice-filled? I suspect they have other data that indicates the presence of water, but there are also clear features inside this canyon that resemble the glacial features found elsewhere on Mars. For example, note the parallel lines near the canyon walls. These indicate past surface levels as well as layers within the ice from cyclic climate processes. The line of pits along the southwest wall, where the surface gets more sunlight, also suggests that this sunlight is causing more ice to sublimate away.

Finally, the graben is located at 46 degrees north latitude, definitely far enough north for such ice to exist, based on ample other research.

8 comments

NASA leaning towards long-duration flight for 1st Dragon mission

9:11 am

Capitalism in space: According to one former astronaut as well as a review of photos of the training being given to the astronauts who will fly on SpaceX’s first manned Dragon flight, this Space News article thinks that NASA will make that first flight a long-duration mission.

This Dragon demo mission is officially still planned as a short mission, no more than two weeks. To extend it requires additional training, which the photos appear to show, and would thus delay its launch by as yet an unspecified time period.

The article also cites a third reason NASA is now favoring the long-duration option: The issues with Boeing’s manned Starliner capsule:

Another factor in any decision to extend Demo-2 is the status of the other commercial crew vehicle, Boeing’s CST-100 Starliner. That vehicle flew an uncrewed test flight in December, but software problems during the flight, including one which shortened the mission and prevented a docking with the ISS, have raised questions about whether a second uncrewed test flight will be needed. An investigation into those problems is expected by the end of this month.

Even if NASA decides a second uncrewed test flight of Starliner is not needed, a review of all of the spacecraft’s one million lines of code, and other reviews, is likely to delay a crewed test flight of the spacecraft. NASA and Boeing had previously agreed to make that test flight a long-duration mission, with NASA astronauts Mike Fincke and Nicole Mann and Boeing astronaut Chris Ferguson performing space station training in addition to that for the Starliner itself.

The delay in Boeing’s long duration mission leaves a gap in the schedule for maintaining crews on ISS. Flying Dragon long-duration would help solve that.

11 comments

Quakes by InSight indicate Mars’ interior is active

1:01 pm

Cerberus Fossae

The first seismic results from InSight’s seismometer now show that the interior of Mars is active, with regular moderately-sized quakes.

The Seismic Experiment for Interior Structure (SEIS) instrument – a seismometer developed by an international consortium under the leadership of the French space agency CNES – recorded a total of 174 seismic events between February and September 2019. Twenty of these marsquakes had a magnitude of between three and four. Quakes of this intensity correspond to weak seismic activity of the kind that occurs repeatedly on Earth in the middle of continental plates, for example in Germany on the southern edge of the Swabian Jura hills.

Although only one measurement station is available, models of wave propagation in the Martian soil have been used to determine the probable source of two of these quakes. It is located in the Cerberus Fossae region, a young volcanic area approximately 1700 kilometres east of the landing site.

Cerberus Fossae is a land of cracks and linear depressions located between the giant volcanoes, Elysium Mons to the north and Olympus Mons to the east. It is believed those fissures were caused by the rise of those volcanoes, stretching the crust and cracking it.

This new data from InSight strengthens this theory.

2 comments

Space Force lobbies for $1 billion extra

8:30 am

The Space Force has put forth an extra wish list of missions/projects that require an $1 billion more above the $15 billion the agency has already requested in the next federal budget for 2021.

While about 10 percent of the request is for classified programs, the remaining funding runs the gamut, from bolstering space situational awareness to accelerating the development of navigational satellites to establishing new commercial satellite communication capabilities in low earth orbit.

Overall this wish list appears properly focused, aimed at upgrading or improving existing space military assets rather than growing the Space Force’s bureaucracy. We shall see over time if this proves true. I can’t help having doubts.

4 comments

New OSIRIS-REx close-up image of secondary asteroid landing site

9:40 am

Osprey landing site on Bennu
Click for full image.

The OSIRIS-REx science team today released one of the images taken during the spacecraft’s recent close reconnaissance of its secondary touch-and-go landing site on the asteroid Bennu.

I have cropped their oblique image to focus, in full resolution, on that landing site, dubbed Osprey, which is the crater on the left side of the photo. The boulder in that crater “is 17 ft (5.2 m) long, which is about the length of a box truck.”

After the fly-by, the science team had announced that the spacecraft’s laser altimeter had failed to operate, and the images taken by its highest resolution camera (not the camera that took today’s image) “are likely out of focus.”

Based on this image, what look like tiny pebbles inside the crater are actually boulders ranging in size from mere inches to as much as five feet across. If their high resolution images are soft, it will thus be hard to map out the terrain sufficiently to safely make a touch-and-go landing here.

More important, there is still no word on whether they have fixed the laser altimeter. Without it I suspect a landing will be very difficult, if not impossible.

Leave a comment

SpaceX seeking $250 million more in investment capital

9:24 am

Capitalism in space: According to anonymous sources, SpaceX is once again seeking more investment capital, this time totaling $250 million.

Last year the company raised $1.33 billion. While not as much as the personal cash that Jeff Bezos has raised for Blue Origin by selling his personal Amazon stock, it has been enough for SpaceX to accomplish far more. Not only is the company about to launch its first manned mission, it has quickly begun assembling its Starlink internet constellation in orbit, while pushing forward on Starship construction.

5 comments
1 … 247 248 249 250 251 … 499