Tag: spaceflight

Zhurong travels another 1,300 feet

9:35 am

Overview map

UPDATE: After emailing this post to Alfred McEwen of the Lunar & Planetary Laboratory in Arizona, he responded to correct an error in my image. The MRO photo was taken when Zhurong had already traveled about half the 1,300 feet listed in the Chinese article below, thus making my original circle about two times too large.

I have corrected its size. It now shows the correct maximum distance Zhurong could have driven since that MRO picture was taken on March 11th.

Original post:
——————–
According to a short report yesterday in China’s state-run press, Zhurong has traveled another 1,300 feet on Mars since it was photographed from orbit on March 11, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The report provided no information at all about the rover’s path. The map to the right shows Zhurong’s position as of March 11th, with the blue circle marking the maximum distance it could have moved since then according to this report. Based on China’s earlier vague statements, it is likely the rover has moved to the south, though even that covers a lot of possibilities.

The report did say this however:

Mars is about to enter the winter season, during which night temperatures will drop below minus 100 degrees Celsius, with a high probability of sandstorms. Martian winters last an equivalent of six Earth months.

Because Zhurong uses solar panels, it relies on the Sun for power. With coming of winter and more sandstorms, it thus faces the risk of limited solar power. As its nominal mission was only supposed to last three months, not a Martian year of 24 months that includes a winter, it will be interesting to see if it can survive that season.

The story also added that Yutu-2 has now traveled about 3,875 feet on the Moon, but added nothing else.

Leave a comment

Space Force awards 125 small contracts to develop space junk removal and satellite repair

9:07 am

Capitalism in space: The Space Force yesterday announced the issuance of 125 small contracts, each worth $250,000, for developing new technologies for the removal of orbiting space junk as well as the robotic servicing of orbiting satellites.

SpaceWERX [a Space Force division] plans to award the 125 contracts over the next 30 days and each team will have about 150 days to deliver a product or study. Later this year they will have an opportunity to compete for second-phase awards of up to $1.5 million to continue development and prototyping.

The long-term goal is to select one or more teams two years from now to conduct an in-space demonstration of OSAM technologies, short for on-orbit servicing, assembly and manufacturing. This includes a broad range of technologies to repair and refuel existing satellites, remove and recycle orbital debris, and manufacture products in space.

Many of these development contracts likely went to already established companies like Northrop Grumman, Orbit Fab, Momentus, Launcher, and Spaceflight, which are all developing technologies for in-orbit transportation and servicing. These small contracts were also likely given to new startup companies that have not yet launched.

3 comments

Berger: The media should ignore Rogozin

8:56 am

Eric Berger today beat me to the punch with a very cogent op-ed outlining how the press is consistently being fooled by the head of Roscosmos, Dmitry Rogozin, by reporting what he says without really understanding any of the larger context.

It happened again this weekend. Both Bloomberg and Axios reported that Russia is quitting the International Space Station due to sanctions imposed by the United States on Russia. Each of these stories garnered considerable attention. And each of these stories was also wrong.

…Specifically, this is what Rogozin said on state television this weekend: “The decision has been taken already, we’re not obliged to talk about it publicly. I can say this only—in accordance with our obligations, we’ll inform our partners about the end of our work on the ISS with a year’s notice.”

This may sound ominous, but that is the wrong interpretation of Rogozin’s words. There is actually some positive news in there, with Rogozin saying Russia will give NASA and its other partners a full year’s notice before departing. This is more than enough time for NASA and its commercial partners, Northrop Grumman, SpaceX, and Boeing, to work together to salvage the larger Western segment of the space station.

Rogozin’s most recent comments are even more positive than his comments in early March, when he threatened to break off the ISS partnership by the end of the month.

The ignorance of both the Bloomberg and Axios reports were amplified in that they were reporting nothing new, as Rogozin had essentially revealed this decision three weeks earlier.

The bottom line is that Russia is facing the death of its space program. It doesn’t have the cash to finance its own space station, and it has no one else to fly with. China says it will be glad to work with Russia on its Tiangong station, but it isn’t going to put out one dime to help pay for Russian efforts. Nor will the future American private stations.

Thus, most of what Rogozin says is bluster, not to be taken too seriously. Russia is going to stay with ISS for at least the next two years, and if it eventually decides to continue the partnership through ’30 it will be no surprise.

Leave a comment

Rocket Lab successfully catches first stage with helicopter

4:13 pm

Electron first stage on parachute just before capture

Capitalism in space: In successfully placing 34 smallsat into orbit today using its Electron rocket, Rocket Lab also successfully caught the first stage with helicopter as it descending by parachute.

The screen capture to the right from the live feed shows that first stage on parachute just before the helicopter hook captures it. That helicopter is now returning to land with that stage, which it will then gently deposit for study and refurbishment. Though it is likely this first recovered first stage will not get reused, that possibility remains, and regardless this success points to the future reuse of all Electron first stages.

UPDATE: Because of “different load characteristics” than seen during previous tests, the helicopter pilot released the stage for safety reasons, while still over the ocean. The company was then able to recover it, but though they can now study it no reuse will be possible.

The leaders in the 2022 launch race:

17 SpaceX
13 China
6 Russia
3 Rocket Lab
2 ULA

The U.S. now leads China 25 to 13 in the national rankings, with the U.S. leading all other nations combined 25 to 22.

8 comments

Watch Rocket Lab launch and attempt to capture first stage with helicopter

1:20 pm

I have embedded below the live stream of Rocket Lab’s launch today from New Zealand, scheduled for a 3:41 pm (Pacific) liftoff. The rocket carries 34 satellites for deployment.

More exciting however will be the attempt to recover the first stage. On this launch the Electron rocket’s first stage will control its descent using both thrusters and parachutes so that a helicopter can make the first attempt to snatch it out of the air before it hits the ocean.

If successful, Rocket Lab will then hopefully be able to reuse the first stage on a later launch.

7 comments

Navigating a rover on Mars

9:32 am

16 photos taken by Perseverance's right navigation camera on May 2, 2022

Overview map
Click for interactive map.

Cool image time! The photo to the right is actually a screen capture of 16 consecutive photos taken on May 2, 2022 by the right navigation camera on the Mars rover Perseverance.

The overview map below gives the context. The red dot marks Perseverance’s position when the photos were taken. The green dot marks Ingenuity’s position. The small white dot marks the spot where the rover’s parachute landed. The yellow lines indicate I think the area covered by the sixteen navigation images.

There is a reason for showing this panorama in this somewhat crude form. The engineers who run Perseverance have programmed its navigation cameras to send back its pictures so that they immediately line up in this coherent pattern. There is no need to rearrange them upon arrival. The engineers thus can instantly see how each picture relates to the others, and thus get an immediate sense of the nearby terrain in which they must plot the rover’s next move.

Perseverance is now in its second science campaign, focused on studying the base of the delta. As the science team studies the delta’s cliff face, they are also studying the best route to continue uphill. To do both, they have begun slowly moving along that face, going from west to east.

The rough panorama above thus shows them the ground ahead as they continue that traverse. I expect the rover’s next move will be to the northeast, once again moving along the base of the nearest cliff. The panorama shows that while the ground in this area has a few ridges, none are so high as to cause Perseverance any problems.

Leave a comment

Update on Dream Chaser

10:57 am

Link here.

Overall progress has been incredibly slow, considering the NASA contract to build this was awarded in 2016. Sierra Space is only building one spacecraft, designed to be reusable. For six years to have passed and the spacecraft, dubbed Tenacity, is still a year away from flight, seems excessive, especially because the spaceplane is small. It took SpaceX only four years to go from concept to successfully landing first stages. Starship began test flights only three years after the project began.

Still, the spaceplane is moving forward. Hopefully by February ’23 it will finally fly, giving the U.S. another method besides Dragon for getting cargo to and from space. That it might do so before Boeing’s Starliner is somewhat ironic, and puts more pressure on that company to get that capsule operational.

15 comments

China and Russia each successfully complete launches

10:25 pm

Both China and Russia successfully completed launches in the past few hours.

First, shortly before midnight today (local time) Russia used its smaller version of its new Angara rocket to place a military satellite into orbit, launching this version of the rocket for the second time.

Next, using its solid rocket Long March 11, China on April 30th (local time) successfully launched five smallsats from an ocean platform in the East China Sea. This was the third launch from sea by the Long March 11.

The leaders in the 2022 launch race:

17 SpaceX
13 China
6 Russia
2 ULA
2 Rocket Lab

The U.S. still leads China 24 to 13 in the national rankings. The U.S. also still leads all other nations and companies combined, 24 to 22.

4 comments

Brain terrain in Mars’ glacier country

3:51 pm

Brain terrain in glacier country
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on February 10, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

It shows what planetary scientists have dubbed “brain terrain”, a truly unique Martian geological feature that is not found on Earth and also remains as yet unexplained. Specifically, the brain terrain is the speckled areas between the larger flow features, all of which are probably ice or glacier related.

What especially drew me to this MRO image however was the particular flow feature in the center left that looks like either a giant squid or something out of Lovecraft horror short story. Talk about a cool image!

The downward grade here is likely to the north, as this spot is inside a north-south canyon, cutting into the southern cratered highlands. The general north-south trend of the depression here reinforce this supposition.

The overview image below provides context.
» Read more

Leave a comment

SpaceX launches another 53 Starlink satellites

2:37 pm

Capitalism in space: SpaceX today successfully launched another 53 Starlink satellites using its Falcon 9 rocket, the first stage successfully flying and landing for the sixth time.

That first stage had flown only three weeks ago, thus completing the fastest turnaround yet.

The leaders in the 2022 launch race:

17 SpaceX
12 China
5 Russia
2 ULA
2 Rocket Lab

The U.S. now leads China 24 to 12 in the national rankings.

8 comments

Surprise! FAA delays SpaceX approval at Boca Chica another month

11:56 am

As I have been predicting now for months, the FAA today announced that it is once again delaying approval of its environmental reassessment of SpaceX’s Boca Chica facility one more month, to May 31, 2022.

This is the fifth time since December that the FAA has delayed the release of the environmental assessment. When the first delay was announced in December 2021, I predicted that this stone-walling by the government will likely continue for many months, and delay the first orbital launch of Starship “until the latter half of ’22, if then.”

Since then it has become very clear that the other federal bureaucracies at NOAA and Fish & Wildlife which must sign off on the approval are hostile to Elon Musk, SpaceX, and Starship, and are acting to block this approval, with this stone-walling having the unstated support of the Biden administration. When the third delay was announced at the end of February, I predicted no approval would ever occur, that the Biden administration wants to reject the reassessment and force the issuance of a new environmental impact statement, a process that could take years. To do this before the November election however will cost votes, so the administration would instead delay the approval month by month until November.

This prediction has been dead on right, unfortunately. Expect more month-by-month delays until November, when the Biden administration will then announce — conveniently just after the election — the need for a new impact statement requiring years of study.

The one hope to stop this government intransigence will be a complete wipe-out of the Democratic Party in Congress in those November elections. A strong Republican Congress with large majorities in both houses could quickly force the Biden administration to back down on many issues, including this effort to shut SpaceX down in Texas.

22 comments

Axiom signs deal with the UAE to fly one astronaut to ISS in ’23

10:52 am

Capitalism in space: Axiom announced today that it has signed an agreement with the United Arab Emirate (UAE) to fly a UAE astronaut to ISS in ’23 for a six month mission.

Axiom was able to put its own passenger on this flight because of a complex deal with NASA that had Axiom act as the go-between for Mark Vande Hei’s launch on a Soyuz in April ’21. Axiom brought the flight for NASA (which didn’t have the funds), and got in exchange a free seat for a passenger on a later American launch. Axiom has now sold that seat to the UAE.

The UAE in turn solidifies its space effort, with a six month manned mission to ISS.

The deal also demonstrates the priceless value of leaving ownership to American companies. Axiom made this deal to sell globally its long term space station plans, and it will use a SpaceX Dragon capsule and Falcon 9 rocket to launch it. Both companies thus make money on their products, instead of the cash going to NASA. Such profits will only encourage further sales, not only to these companies but to other competing American rocket and space station companies.

Leave a comment

Watch today’s launches by SpaceX and Rocket Lab

10:35 am

UPDATE: The Rocket Lab launch has been pushed back to May 1st because of poor weather today. The live stream below is still valid but it won’t go active until about 20 minutes before launch.

Capitalism in space: Two American rocket launches are scheduled for today, first a launch of another 53 Starlink satellites on SpaceX’s Falcon 9 rocket from Cape Canaveral followed by the launch of 34 smallsats on Rocket Lab’s Electron rocket from New Zealand.

I have embedded the live stream of both below. The Rocket Lab launch will be especially exciting, because the company is going to attempt for the first time the recovery of the first stage for reuse by snatching it in the air with a helicopter as it slowly descends on parachutes.

The SpaceX launch is scheduled for 5:27 pm (Eastern), with the live stream going active about 20 minutes before launch. If successful it will be the shortest turnaround for a Falcon 9 first stage, only 21 days and shaving almost a week off the previous record.

About one hour later the Rocket Lab launch will occur, the live stream also going active about 20 minutes beforehand.

» Read more

2 comments

Launches of UK rocket company delayed by red tape in Iceland

10:11 am

Capitalism in space: Because the United Kingdom rocket company Skyrora has been unable to get Iceland to approve a suborbital test launch from that country, further test orbital launches from the new spaceport in Shetland in ’23 are threatened with delays.

The suborbital test launch had been scheduled to launch in September of last year, and has been delayed since because of this red tape.

Leave a comment

NASA decides to end airborne SOFIA telescope operations

10:03 am

According to a joint announcement yesterday from NASA and the German space agency DLR, all operations of the airborne astronomy telescope SOFIA will end as of September ’22.

NASA has been trying to cancel this project for several years, because its capabilities have not justified its expense, about $85 million per year. Congress has repeatedly refused to go along, reinserting funding after NASA tried to delete it. That the astronomy community itself suggested in November that the project be canceled, however, probably means this Congress will likely go along with this most recent announcement.

Leave a comment

China’s Long March 2C rocket launches two Earth observation satellites

9:54 am

China yesterday successfully launched two Earth observation satellites using its Long March 2C rocket.

Since these were launched from one of China’s interior spaceports, the rocket’s first stage fell somewhere in China. No word if it used parachutes or grid fins to control that landing. Also, weather yesterday forced the scrub of a launch of China’s Long March 11 solid rocket from a sea-based launch platform. That launch has been rescheduled for tomorrow.

The leaders in the 2022 launch race:

16 SpaceX
12 China
5 Russia
2 ULA
2 Rocket Lab.

The U.S. presently leads China 23 to 12 in the national rankings. Since there are two U.S. launches scheduled for later today, as well as a Russian and Chinese launch pending, these numbers will change in the next 24 hours.

One comment

Rogozin: Expect delays for future Russian lunar probes

9:45 am

China/Russian Lunar base roadmap
The so-called Chinese-Russian partnership to explore
the Moon.

According to a statement by Dmitry Rogozin, head of Roscosmos, yesterday in the Russian state-run press, the launch of two unmanned probes to the Moon, Luna-26 and Luna-27, are likely to be postponed due to “the current circumstances.”

“As for the Luna-26 lunar orbiter and the Luna-27 heavy lander mission, possibly, it will be adjusted taking into account that in the current situation we will be spending the main financial and industrial resources on increasing the orbital group. Now it is more important,” the space chief emphasized.

The Roscosmos CEO also asked for understanding if the mission is postponed. “Science is very important but now we are talking about the viability of Russia’s orbital group, about bringing it to a new level, its work as a group of double and military designation. Yet we are not postponing the lunar missions for long,” he added.

Rogozin added that Luna-25, scheduled for launch this year, has not been postponed.

Apparently the more than $1 billion of income that Roscosmos has lost by its refusal to launch OneWeb’s satellites is forcing it to make choices. For the government, the priority has to be launching communications, weather, navigation, and military surveillance satellites. Being tight on cash, Rogozin thus has no recourse but to favor those launches over any purely science missions.

This decision also demonstrates that Russia’s so-called partnership with China to explore the Moon, as shown in the graphic to the right that was released by China and Russia in June 2021, is pure hogwash. as I noted then:

Of the three Russian missions, Luna 25 is scheduled to launch later this year, making it the first all-Russian-built planetary mission in years and the first back to the Moon since the 1970s. The other two Russian probes [Luna-26 and Luna-27] are supposedly under development, but based on Russia’s recent track record in the past two decades for promised space projects, we have no guarantee they will fly as scheduled, or even fly at all.

Rogozin also said yesterday that he plans further talks with China in May to further their partnership concerning lunar exploration and building a lunar base. Let me translate: “We need cash to launch anything, and hope the Chinese will provide some.”

2 comments

As Curiosity retreats from rough country, scientists look at the future geology it will see

3:51 pm

Overview map
Click for interactive map.

Cool image time! For the past two weeks the Curiosity science team has been gingerly and slowing backing the rover off from the very rough terrain of the Greenheugh pediment, as shown on the overview map to the right. The blue dot indicates Curiosity’s present position, with the red dotted line marking its original planned route, now abandoned.

The main question remains: Where to go next? At this point the science team is still debating their exact path forward. As Catherine Weitz of the Planetary Science Institute explained to me in an email today,

The Curiosity team is still working out the details. Maybe in another month or so the new route will be finalized so stay tuned.

No matter what route they eventually choose, the white arrows mark one of the more interesting upcoming geological features that the scientists very much intend Curiosity to reach. In a paper published at the end of March in which Weitz was the lead author, they describe this “marker horizon” as follows:
» Read more

2 comments

China plans a constellation of communications/GPS-type satellites around Moon

9:43 am

The new colonial movement: According to a statement by one Chinese official on April 24th, China now plans to launch a constellation of communications/GPS-type satellites that will orbit the Moon and provide support for its unmanned and manned missions to the surface.

China will take the lead in demonstrating a small, lunar relay communication and navigation system, Wu Yanhua, deputy director of the China National Space Administration (CNSA), told Chinese media on April 24. The first launch for the small constellation could take place in 2023 or 2024, according to Wu, who added that countries around the world are welcome to jointly build it.

That first launch will likely be a relay satellite to support the first unmanned landers/rovers targeting the lunar south pole. It will also likely be the first of several satellites designed to provide service long term for China’s planned manned lunar base, what it has dubbed the International Lunar Research Station (ILRS). Though announced as a project partnered with Russia, expect a large bulk of the work to be done by China.

7 comments

Dunes on Jupiter’s volcano moon Io?

9:35 am

Dunes on Io?
Click for full image.

The uncertainty of science: According to a just published paper, scientists now propose that the dune-like ridges long known to exist on Io, Jupiter’s volcano-covered moon, might actually be dunes, even though Io has no real atmosphere.

The photo to the right, cropped, reduced, and annotated to post here, was taken by the Galileo while it orbited Jupiter from 1995 to 2003. It illustrates what the scientists believe is the proposed process:

McDonald and his colleagues used mathematical equations to simulate the force required to move grains on Io and calculated the path those grains would take. The study simulated the movement of a single grain of basalt or frost, revealing that the interaction between flowing lava and sulfur dioxide beneath the moon’s surface creates venting that is dense and fast moving enough to form large dune-like features on the moon’s surface, according to the statement.

In what might be a monumental understatement about the reality of interplanetary geology, McDonald said this in the press release: “This work tells us that the environments in which dunes are found are considerably more varied than the classical, endless desert landscapes on parts of Earth.”

Damn right. The possibility of unexpected geology of all kinds on the millions of planets, moon, and asteroids not yet studied is endless, and guaranteed.

3 comments

SpaceX’s Freedom spacecraft docks with ISS

9:15 am

Capitalism in space: As planned SpaceX’s Freedom capsule successfully docked with ISS last night, delivering four NASA astronauts to ISS for a five-month mission.

This launch was the sixth manned flight to ISS by SpaceX, and the seventh overall, with two of those seven launches entirely commercial and paid for by private customers. It appears that, based on already announced plans, that ratio between government and private customers should continue during the next few years, though beyond that expect the private launches to eventually outpace the government ones. When that begins to happen SpaceX might decide to expand its fleet from the four capsules (Endeavour, Resilience, Endurance, and Freedom) it presently operates.

Leave a comment

Ukrainian rocket for Nova Scotia spaceport so far unaffected by war

9:07 am

Capitalism in space: According to the CEO of Maritime Launch Services, the Canadian company that is building a spaceport in Nova Scotia, work on the Ukrainian Cyclone-4M rocket that the spaceport wants to offer customers has as yet not been impacted by the invasion by Russia.

Steve Matier, CEO of Maritime Launch Services, says daily planning work continues with the makers of the Cyclone-4M rocket, who are based in Dnipro, Ukraine. Matier said in an interview Tuesday his company still hopes to conduct its first launch sometime in 2023, once it gets final construction and environmental approval from the province for its proposed facilities near Canso, N.S.

However, Matier also said the first launches from the spaceport will not use the Cyclone. Instead, these launches would use smaller unnamed rockets putting smaller payloads in lower orbit. Since the company’s initial business model had been to offer to satellite customers not only the spaceport but the rocket, this statement suggests the company has changed that business model and is now marketing the spaceport to other rocket companies.

Matier’s comments were in connection with the announcement that Maritime has now become a publicly traded company.

12 comments

Ingenuity photographs Perseverance’s abandoned parachute on 26th flight

10:05 am

Perseverance's parachute, as photographed by Ingenuity
Click for full image.

Overview map
Click for interactive map.

In the past week the Mars helicopter Ingenuity successfully completed its 26th and 27th flights, with the first specifically planned to fly over the parachute that had been used by Perseverance when it landed on Mars on February 18, 2021. The first photo to the right, enhanced, cropped, and reduced to post here, is the color photo of that parachute that Ingenuity took during that flight on April 20th. Near the top of the frame you can also see the equipment used to attach the chute to the rover. The photo looks to the southwest.

The map to the right indicates the flight paths for both hops, both slightly more than 1,000 feet total. The green dot marks Ingenuity’s position yesterday, the red dot Perseverance’s position. The small white dot indicates the parachute’s location.

On April 8th Perseverance had snapped a picture of the parachute, from the position indicated by the black dot. Since that photo was taken from a distance, it could not show much. Ingenuity’s more recent photo from overhead however captures the chute quite clearly, and suggests that in the year since landing the weak Martian wind has shifted its edges slightly while depositing some dust on its surface.

You can see the changes at the edges by comparing Ingenuity’s picture with a photo taken on February 19, 2021 by Mars Reconnaissance Orbiter (MRO). In Ingenuity’s picture the near edge of the parachute especially appears to have become bunched up over time, suggesting the prevailing and strongest winds have come from the south.

4 comments

SpaceX successfully launches 4 astronauts into orbit

1:05 am

Capitalism in space: SpaceX early this morning successfully used its Falcon 9 rocket to launch its new capsule, Freedom, carrying four astronauts into orbit and heading to a docking with ISS this evening.

The first stage successfully landed on the drone ship in the Atlantic, completing its fourth flight.

The leaders in the 2022 launch race:

16 SpaceX
11 China
5 Russia
2 ULA
2 Rocket Lab

The U.S. now leads China 23 to 11 in the national rankings. In fact, at this moment the U.S. leads all other nations combined, 23 to 19.

4 comments

Watch first flight of SpaceX’s fourth capsule, Freedom, carrying four NASA astronauts

10:23 pm

The next launch of a NASA crew to ISS is scheduled to occur tonight at 3:52 am (Eastern) using SpaceX’s new capsule, Freedom, the fourth in the company’s fleet of manned spacecraft. Note too that the first stage of this Falcon 9 rocket will be making its fourth flight into space.

I have embedded the live stream below. As I write this, at 1:19 am (Eastern) the crew has just entered the capsule. Go here for details about the flight, which will be a five month mission.

Commander Kjell Lindgren, veteran of one previous expedition on the space station, leads the four-person crew awaiting liftoff Wednesday. He will be joined by pilot Bob Hines and mission specialist Jessica Watkins, two first-time fliers from NASA’s astronaut corps. European Space Agency astronaut Samantha Cristoforetti, a native of Italy who spent nearly 200 days in orbit in 2014 and 2015, rounds out the crew.

If the launch goes well, Freedom will dock with ISS about sixteen hours later.

If you watch, I must once again note that every person you see aiding the astronauts will be a SpaceX employee. Except for some of the announcers and NASA’s mission control for operating ISS, the launch mission control and everything else is run by this privately owned commercial company.

» Read more

One comment

SpaceX’s signs up another airline to use Starlink Wi-Fi on its planes

9:48 am

Capitalism in space: Hawaiian Airlines has now become the second commercial airline company to agree to use SpaceX’s Starlink Wi-Fi on its airplanes.

Hawaiian Airlines said Monday that it will offer free wireless internet service from SpaceX’s Starlink satellite network on flights between Hawaii and the U.S. mainland, Asia and Oceania. The airline said it is in the early stages of putting the service in place on some aircraft next year.

Honolulu-based Hawaiian said it’s the first deal between Elon Musk’s space company and a major airline, although charter operator JSX announced a deal with SpaceX last week.

Expect all the American airlines to soon switch to Starlink. The low orbit of the satellites and its high speed make it superior to the other satellite options presently available.

Leave a comment

InSight scientists publish paper describing last year’s big Martian quakes

9:43 am

Figure 5: global map of located Martian quakes

The InSight science team has now published a paper [pdf] describing in detail what they gleaned from the two large earthquakes the lander detected on Mars last year, measuring 4.1 and 4.2 magnitudes.

The map above, figure 5 of their paper, marks their best estimate of the quakes’ locations, dubbed S0976a and S1000a. From the caption:

Mars surface relief map showing InSight’s location (orange triangle), the location of other located mars-quakes (magenta dots) that cluster around 30° distance, close to Cerberus Fossae, and S0976a, located within Valles Marineris just north of Sollis Planum. Because no back azimuth can be determined for S1000a, its location is predicted to be somewhere within the shaded region between 107° and 147° from InSight. The event’s preferred distance (116°) is marked with the white dashed line. The black dotted lines mark radii around InSight up to 80°.

A review of Mars Reconnaissance Orbiter (MRO) high resolution images of that part of Valles Marineris where S096a occurred will likely uncover a whole bunch taken since last August, all attempting to detect any actual surface changes produced by quake. I think I’ll do that review, and see if I can spot something.

The paper also notes the uniqueness of S1000a, which lasted 94 minutes, the longest so far detected on Mars. The complexity of its signal also makes locating it difficult, though the most likely possible locations — indicated by the white dashed line in the map above — crosses through the Tharsis Bulge where Mars’ biggest volcanoes are found.

Sadly, InSight will likely shut down before the end of this year due to loss of power, so until another seismometer is sent there no further Martian quakes will be detected.

Leave a comment

SLS rocket rolled back to VAB

9:13 am

NASA’s SLS rocket has now been rolled back to the vehicle assembly building (VAB) so that engineers can assess the various problems that prevented the agency from completing a full dress rehearsal countdown last week.

Over the next several days, the team will extend the work platforms to allow access to SLS and Orion. In the coming weeks, teams will work on replacing a faulty upper stage check valve and a small leak within the tail service mast umbilical ground plate housing, and perform additional checkouts before returning to the launch pad for the next wet dress rehearsal attempt.

More details about these problems can be found here.

The bottom line is that these engineering fixes are certain to take at least two months to fix. Then NASA must decide what next to do. If it decides to redo the dress rehearsal countdown, then an actual launch cannot happen sooner than July, and only if they proceed directly to launch after completing the rehearsal. If the rocket is rolled back to the VAB after the next rehearsal the launch will be delayed further, into August or September.

And all that assumes the next rehearsal goes perfect, something that seems unlikely based on what has happened so far.

The delays are a problem because the first stage’s two strap-on solid rocket boosters are already well past their “use-by” date of January ’22. The possibility that NASA will have to unstack this rocket and replace these boosters is growing. If that happens the launch cannot occur sooner than early ’23, if then.

Worse, these delays cause all other subsequent SLS launches to be delayed as well. Right now the manned mission to the Moon, presently scheduled for ’25, is likely going to be pushed back to ’26.

11 comments

NASA extends eight planetary missions, including sending OSIRIS-REx to the asteroid Apophis

1:18 pm

Apophis' path past the Earth in 2029
Apophis’ path past the Earth in 2029.

NASA today announced that it is extending the missions of eight different planetary probes.

The missions – Mars Odyssey, Mars Reconnaissance Orbiter, MAVEN, Mars Science Laboratory (Curiosity rover), InSight lander, Lunar Reconnaissance Orbiter, OSIRIS-REx, and New Horizons – have been selected for continuation, assuming their spacecraft remain healthy. Most of the missions will be extended for three years; however, OSIRIS-REx will be continued for nine years in order to reach a new destination, and InSight will be continued until the end of 2022, unless the spacecraft’s electrical power allows for longer operations.

The biggest news is the decision to extend OSIRS-REx so that it can rendezvous with the asteroid Apophis in 2029. The science team…

…will redirect the spacecraft to encounter Apophis, an asteroid roughly 1,200 feet (roughly 370 meters) in diameter that will come within 20,000 miles (32,000 kilometers) of Earth in 2029. OSIRIS-APEX will enter orbit around Apophis soon after the asteroid’s Earth flyby, providing an unprecedented close-up look at this S-type asteroid. It plans to study changes in the asteroid caused by its close flyby of Earth and use the spacecraft’s gas thrusters to attempt to dislodge and study the dust and small rocks on and below Apophis’ surface.

Apophis is a potentially dangerous asteroid, with a 1 in 150,000 chance it will hit the Earth in 2068. Getting as much information about it as soon as possible is crucial so that future generations will be prepared should its path eventually become a collision course.

9 comments
1 … 139 140 141 142 143 … 477