Tag: engineering

Due to cracks, Russia will no longer use Zvezda’s docking port

9:39 am

Russian officials today revealed that they will no longer use the docking port on its Zvezda module on ISS because of the stress fracture cracks they have found in the section where that port is located.

Russia is unable to use one of the docking ports of the ISS to its full extent due to cracks in the transitional chamber of the Zvezda module, the general designer of Russia’s Energia corporation, associate member of the Russian Academy of Sciences Vladimir Solovyov said on Monday. “The transitional chamber’s loss of airtightness is often mentioned these days. We are very fortunate the cracks are at the end. We shut down that compartment, thus losing one docking port, which narrows our opportunities somewhat. The crack is very insignificant, though,”

In other words, they have sealed the aft section of Zvezda to reduce further air leaks, thus also closing off access to the port.

The Russian portion of ISS presently has two docking ports on two different modules. When Roscosmos launches its Prichal docking hub in November, to be attached to Nauka’s port, they will then add four more ports.

This decision underlines the impending end to ISS’s life span. Zvezda is not the only old Russian module on ISS where stress fractures have been found. “In August they found cracks in the module Zarya, the oldest module on ISS.

Though the U.S. part of ISS shows no such problem, it is designed to rely on the Russian half for its operations. If Russia must shut down its modules then the station will not be able to function for much longer.

The U.S. will likely overcome some of these issues with the planned launch in ’24 of Axiom’s private commercial module to ISS, which will eventually evolve into an complete space station separate from ISS. For the Russians the pressure to design and launch their own new station has become more critical. Whether they can do it however is unknown. Russia has not built a new space station module in decades. Their new ISS module, Nauka, was built in the 1990s.

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Space Force payload problems force delay until ’22 of next Falcon Heavy launch

9:18 am

Capitalism in space: The Space Force has announced that because more time is needed to prepare its military payload, the next Falcon Heavy launch, scheduled later this month, will be delayed until ’22.

This is not the first time payload issues have delayed the launch, which had been previously scheduled for July. The Space Force has not announced a new launch date, nor was it very specific in describing the issues that has forced this delay.

As for the Falcon Heavy, though there has been a long delay since its last flight in June 2019, it appears that SpaceX has four launches scheduled for ’22, with another six already contracted and scheduled for later.

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UAE to launch probe to asteroid belt

9:01 am

The new colonial movement: The United Arab Emirates (UAE) today announced that it is planning an unmanned probe to visit a number of asteroids in the asteroid belt.

The project targets a 2028 launch with a landing in 2033, a five-year journey in which the spacecraft will travel some 3.6 billion kilometers (2.2 billion miles). The spacecraft would need to slingshot first around Venus and then the Earth to gather enough speed to reach an asteroid some 560 million kilometers (350 million miles) away.

It appears they have not yet chosen their targets in the belt.

The big question will be how much of this project will be built in the UAE, and how much they will have to farm out to others. For their Al-Amal Mars orbiter, the satellite was mostly built by U.S. universities, as they trained UAE engineers, who now run the mission entire.

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Russia launches movie director and actor to ISS

8:40 am

Capitalism in space: Early today Russia successfully used its Soyuz-2 rocket and Soyuz capsule to launch a movie crew to ISS to begin a twelve day visit where they will film scenes for a science fiction movie.

An actress Yulia Peresild and a movie director Klim Shipenko arrived at the International Space Station aboard the Soyuz MS-19 spacecraft on Oct. 5, 2021, for a 12-day visit to shoot scenes of a sci-fi drama. They were accompanied by a professional cosmonaut Anton Shkaplerov, who had to switch to manual control during the final approach to the station due to a failure of the Kurs automated rendezvous system aboard Soyuz. Shkaplerov will remain aboard the station for nearly six months.

This is the second in a steady string of passenger commercial spaceflights that have been purchased by various people from either Roscosmos in Russia or SpaceX in the U.S. We shall see two more such flights in December, and another early in ’22, with additional flights to be scheduled beyond that. The full list, at this time:

  • September 15, 2021: SpaceX’s Dragon capsule flew four private citizens on a three day orbital flight
  • October 2021: The Russians launch two passengers to ISS for 12 days to shoot a movie
  • December 2021: The Russians will fly billionaire Yusaku Maezawa and his assistant to ISS for 12 days
  • cDecember 2021: Space Adventures, using a Dragon capsule, will fly four in orbit for five days
  • January/February 2022: Axiom, using a Dragon capsule, will fly four tourists to ISS
  • 2022-2024: Three more Axiom tourist flights on Dragon to ISS
  • 2024: Axiom begins launching its own modules to ISS, starting construction of its own private space station
  • c2024: SpaceX’s Starship takes Yusaku Maezawa and several others on a journey around the Moon.

Expect this list to grow. There appears to be plenty of demand for such commercial manned spaceflights, and with more flights and more competition (once Boeing’s Starliner enters the game) the cost will certainly drop.

The leaders in the 2021 launch race:

34 China
23 SpaceX
16 Russia
4 Northrop Grumman

With this launch Russia has now exceeded the number of launches it completed last year. If they complete all their presently scheduled launches for ’21, Roscosmos will have its best year since 2015.

The U.S still leads China 35 to 34 in the national rankings.

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Worldview to once again develop stratospheric tourist balloon flights

8:55 pm

Capitalism in space: The Tucson-based high altitude balloon company Worldview has now announced that it is going to once again develop tourist balloon flights.

World View, based in Tucson, Ariz., announced Oct. 4 it is developing a passenger capsule that will be carried aloft by balloons to altitudes of about 30 kilometers. The Explorer Space Capsule will host eight passengers and two crew for flights lasting 6 to 12 hours, giving people a view of the Earth the company argues resembles that seen from space.

Tickets will cost $50,000 per person, with World View providing what it calls “flexible financing options.” The company expects the first flight no earlier than early 2024, with the nonprofit organization Space for Humanity, which offers spaceflight experiences for those who cannot afford tickets, buying the inaugural flight….

This project is a return to World View’s origins nearly a decade ago. The company originally said it would develop a stratospheric balloon system called Voyager for carrying people, offering them an aspect of the spaceflight experience without actually going to space. However, several years later the company shifted its attention to uncrewed balloons called “stratollites” that carry imaging and communications payloads into the stratosphere for weeks at a time.

The company’s CEO said they are hoping to pick up business from the suborbital market by offering a near-space experience that lasts hours for about one tenth the cost.

Worldview is now in direct competition with Space Perspectives, based in Florida and intending to fly passengers on high altitude balloon flights by ’24, but for $125k per ticket. That company was founded by the same people that founded Worldview.

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Land of Martian slope streaks

12:37 pm

Land of Martian slope streaks
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on May 21, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a typical example of the many slope streaks found in the rough and very broken region north of the Martian volcano Olympus Mons, the largest in the solar system.

See this May 2019 post for a detailed explanation of slope streaks. While they appear to be avalanches, they do not change the topography of the ground, sometimes flow over rises, and appear to be a phenomenon entirely unique to Mars. While no theory as yet explains them fully, the two most favored postulate that they are either dust avalanches or the percolation of a brine of chloride and/or perchlorate in a thin layer several inches thick close to the surface. In both cases the streak is mostly only a stain on the surface that fades with time.

The location of this cool image however tells us something more about them.
» Read more

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Italy switches from Arianespace to SpaceX for launch contract

9:05 am

Capitalism in space: Because of the two recent launch failures of Arianespace’s Vega rocket (built mostly in Italy), the Italian space agency (ASI) has decided to take the launch of an Earth observation satellite from Arianespace and award the launch contract instead to SpaceX.

The article at the link describes in detail the history and politics that make this decision significant. Essentially, because Arianespace in the past decade has failed to meet the challenge of SpaceX, so that its launches continue to be more expensive, this government-subsidized business has tried to force nations in the European Space Agency (ESA) to use Arianespace rockets via political agreements.

With this decision Italy is defying that pressure, which in turn is going to increase the pressure on Arianespace to finally step up its game, or die from lack of business. For example, when the ESA agreed to have Arianespace build its next generation rocket, the Ariane 6, it failed to require it to be reuseable. The Ariane 6 rocket was therefore designed as an expendable rocket, which meant that right from the start it could not compete with SpaceX’s Falcon 9. It has therefore failed to win launch contracts.

Expect the Ariane 6 to continue to fade as the years pass, simply because the bureaucrats in ESA and Arianespace refused to take their competition seriously.

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William Shatner to fly on next New Shepard suborbital flight

8:47 am

Capitalism in space: Blue Origin today announced that William Shatner will join three other passengers on its next New Shepard suborbital flight, presently scheduled for October 12th.

Today, Blue Origin announced actor William Shatner and Audrey Powers, Blue Origin’s Vice President of Mission & Flight Operations, will fly on board New Shepard NS-18. They will join crewmates Chris Boshuizen and Glen de Vries for the flight which lifts off from Launch Site One on October 12.

Powers appears to be flying as both a reward for her work at Blue Origin and as a engineer to observe the operation of the spacecraft.

Shatner, an actor for more than six decades and most famous for his role as James T. Kirk in Star Trek, is 90 years old, which will make him the oldest person to ever fly into space.

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BeppiColombo’s first images of Mercury

10:52 pm

Mercury by BebiColomo
Click for full image.

This past weekend the European/Japanese duel-orbiter mission made its first flyby of Mercury, taking its first images of that planet.

The photo to the right is one example, cropped and reduced slightly to post here. It was taken by the spacecraft’s monitoring cameras, designed for engineering purposes, which means the resolution is not very high and the camera is positioned so that parts of the spacecraft were visible in each shot. For example, the white strut in the lower right is the spacecraft’s magnetometer boom, which also was used to gather data during the flyby.

Still, the photos demonstrated that the spacecraft is pointing correctly and on course. It will complete five more Mercury fly-bys before going into orbit in 2025.

The next flyby will occur in June ’22.

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NASA issues request for commercially-built spacesuits for its Artemis program

10:39 pm

Capitalism in space: After more than a decade of delays in building its own in-house next generation spacesuits, NASA this week issued a request for proposals from the commercial space industry for new spacesuits for its Artemis program.

Bidders can use the technology NASA developed for [its unfinished upgraded spacesuits] in its proposals, or they can use their own designs, the document states. The suits must be able to meet a variety of requirements, including up to six spacewalks on the lunar surface during initial Artemis Moon missions. They must also be made of materials such that less than 100 grams of lunar regolith is brought back into the “cabin environment” after each spacewalk on the Moon. NASA plans to award a contract by next April.

The plan is comparable to what NASA has been doing across the board now for the last three years, buy the product from the commercial sector in a fixed price contract. The company that builds the suits will retain ownership of the design, and can make money selling its use to others.

This policy approach continues the agency’s acceptance of almost all the recommendations put forth in my 2017 policy paper, Capitalism in Space, a free pdf download.

It also likely means NASA might finally get the spacesuits it needs for future lunar missions quickly and at a reasonable cost, something the agency itself has been unable to do.

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Inactive volcano vent on Mars

1:57 pm

Inactive volcanic vent on Mars
Click for full image.

Overview map

Cool image time! The photo to the right, cropped, reduced and annotated to post here, was taken on July 30, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The left image shows a pit that the scientists label a “vent” near the giant volcano Pavonis Mons. The right image is identical, except that I have brightened it considerably to bring out the details in the shadowed area.

As you can see, this pit is filled, and does not appear to have any existing openings into more extensive underground passages.

The white dot on the overview map on the right shows this vent’s location, to the south of Pavonis Mons, and in line with the giant crack that splits three of Mars’ four largest volcanoes. The vent is even aligned the same as that crack, from the northeast to the southwest. The black dots mark the locations of the many cave pits found in this region.

Was this a volcanic vent? If you look at the full image you will see that this pit aligns with a shallower pit to the southwest, with a depression linking the two. Visually this suggests this is a faultline which in turn makes for a good outlet point for lava flow.

Though the data suggests this is a volcanic vent, that supposition is as yet unproven. The full image does not show much evidence of a flow from the pit, which suggests instead that we are merely looking at a spot where the ground cracked along fault lines.

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Two nearby asteroids found with more precious metals than Earth’s entire global supply

10:04 am

The precious metals on asteroid 1986 DA, compared to the world's reserves

Capitalism in space: Astronomers have now identified two metal-rich asteroids in orbit near the Earth, with one having a precious metal content that likely exceeds the Earth’s entire reserves.

From the paper’s conclusion:

We estimated that the amounts of Fe, Ni, Co, and the PGM present in 1986 DA could exceed the reserves worldwide. Moreover, if 1986 DA is mined and the metals marketed over 50 yr, the annual value of precious metals for this object would be ∼$233 billion.

The graphic to the right, figure 13 from the paper, illustrates the amount of precious metals available in asteroid 1986 DA, compared to the world’s entire reserves (FE=iron, Ni=nickel, Co=cobalt, Cu=copper, PGM=platinum group metals, Au=gold). From this single metal asteroid a mining operation could literally double the metal that had been previously mined on Earth.

In estimating the value of these metals, the paper tries to account for the certain drop in price caused by the flooding of so much material into the market. It is a guess however. What is clear is that this asteroid could easily serve as a supply house not for Earth but for all future colonies in space. While expensive for Earth use, for colonies already in space the material would be relatively easy to reach and mine. The colonies will already have the transportation infrastructure, since they couldn’t exist without rockets and interplanetary spacecraft. And mining and processing this asteroid material will be far easier and cheaper than trying to find it on Mars and then process it.

Asteroid 1986 DA is estimated to be about 1.7 miles across, based on radar data obtained during a close Earth fly-by in 2019. The second asteroid, 2016 ED85, appears to have a similar content from spectroscopy, but no radar data has as yet been obtained of it, so much less is known.

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Former Blue Origin employee blasts company for sexism and safety issues

12:04 pm

Food fight! While the past two days have been filled with silly back-and-forth barbs between Elon Musk and Jeff Bezos, none of which really matters (which is why I haven’t posted anything about it here), today came the publication of a long scree by a former Blue Origin employee blasting the company for sexism and safety issues.

The rant by Alexandra Abrams, former head of Blue Origin Employee Communications, claims it is co-signed by twenty other present and former Blue Origin employees, but provides no information as who those individuals are. The accusations themselves are all hearsay, since Abrams simply recounts experiences of unnamed others, without any documentation.

Could there be management problems at Blue Origin? Certainly. The real evidence in the past five years suggests that CEO Bob Smith has not done well to get the company off the ground. Not only has Blue Origin accomplished little under his tenure, employees are apparently not happy there, with many fleeing the company.

Abrams’ rant however comes off more like she is a disgruntled former employee who was let go because she was pushing social justice issues rather than focusing on getting her job done. Her use of worn leftist phrases like “climate justice” and “gender gaps” suggests this strongly. The response from Blue Origin to her essay reinforces that impression, noting that she was fired for doing things that could have gotten Blue Origin shut down by the federal government:

Ms. Abrams was dismissed for cause two years ago after repeated warnings for issues involving federal export control regulations.

If so, and Blue Origin would not say this publicly if it wasn’t true, Abrams misconduct could have been very serious indeed. Moreover, as noted at this last link, she was the head of the company’s employee communications department, a division that shouldn’t really be involved in such issues anyway.

This whole kerfuffle reminds me of a similar affair at SpaceX several years ago. A disgruntled former employee made all sorts of similar charges, sued, and lost. I expect a similar result here.

Both companies are in the business of building rockets. Their goal is not “gender equality” or “climate justice”. If that becomes any employee’s first priority, as it appears might have been the case with Abrams, that employee has got to be culled from the company, as that person will only become a cancer that will destroy what everyone else there is trying to accomplish.

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FAA extends comment period for SpaceX Starship/Superheavy environmental reassessment

11:11 am

Capitalism in space: The FAA today announced that it has extended the comment period for its environmental reassessment of SpaceX’s operations at Boca Chica, Texas two weeks until November 1st.

From the email announcement:

The Federal Aviation Administration (FAA) has received requests for an extension of the public comment period for the Draft Programmatic Environmental Assessment for the SpaceX Starship/Super Heavy Launch Vehicle Program at the SpaceX Boca Chica Launch Site in Cameron County, Texas (Draft PEA). In consideration of these requests, the FAA is extending the public comment period.

The agency has also changed the dates for the two public hearings it will hold to October 18 and October 20. It will announce more information on those hearings on October 15th.

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Orbit of biggest comet ever detected refined

10:59 am

Astronomers have now been able to better refine the orbit and size of Comet Bernardinelli-Bernstein, comet with the largest nucleus ever detected.

A new analysis, led by Bernardinelli and Bernstein themselves, found that the comet nucleus is around 150 km wide, based on its brightness. If so, that makes it the largest comet ever discovered, by quite a margin. Most are only a few kilometers to several dozen kilometers wide, while some particularly big ones, like Hale-Bopp, may be up to 80 km (50 miles) wide. The previous record-holder, Sarabat’s Comet of 1729, has been estimated at about 100 km wide.

The team was also able to calculate the orbit of Comet BB in more detail. This object is on an incredibly long round trip into and out of the solar system – at its most distant point, some 1.5 million years ago, it was about 40,400 AU away. Last time it swung through our neighborhood was about 3.5 million years ago, when it came within 18 AU of the Sun.

But its current inward journey will be its closest so far. Astronomers have already calculated that in 2031, Comet BB will peak at 10.9 AU, almost reaching the orbit of Saturn.

It is presently unclear how bright the comet will be when it reachest its closest point. It will be much farther from the Sun than most bright comets, but its large size may change what is normally expected.

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Yutu-2 and Chang’e-4 successfully complete another lunar day on the Moon

10:52 am

According to China’s state-run press, its lunar rover Yutu-2 and the lander Chang’e-4 have now successfully completed another lunar day on the far side of the Moon, with both still functioning well.

Yutu-2 has traveled a total of 839.37 meters, or about 2,753 feet. They are aiming for a location that is still about 3,400 feet away. Based on the rover’s travel pace, about 100 feet per lunar day, it will take them about another two or four years to get there.

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FAA clears Virgin Galactic to fly

10:35 am

Capitalism in space: FAA yesterday closed out its investigation into the flight path deviation during the July Virgin Galactic suborbital flight, clearing the company to resume flights.

To prevent future issues, the company will request that a larger zone be restricted on future flights. The FAA also criticized the company for not revealing the flight deviation to the FAA immediately, and demanded the company make sure it doesn’t happen again.

The article at the link also notes that the Virgin Galactic employee whose job it was to provide that information to the FAA resigned the day before this announcement. There is no evidence however that there is any link to the two events, though it is very likely that person was made the fall guy to satisfy the FAA and Virgin Galactic.

Whether flights will resume in mid-October as the company has stated earlier is not clear, as there is no word about whether the manufacturing defect in the flight control equipment revealed by a third-party supplier has been resolved.

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Ingenuity’s 14th flight scrubbed by helicopter

10:22 am

Though Ingenuity successfully completed a preflight high speed test of its rotors on September 15th, when it came time to do its fourteenth flight two days later, intended as a short airborne test of that high speed, the helicopter’s computer sensed an issue prior to take-off and scrubbed the flight.

The goal of the high speed test and short flight were to see if Ingenuity could fly during the winter months when the atmosphere of Mars is thinner, thus requiring a higher rotor speed. Initially it was not expected the helicopter would still be operational at this point, so this is another example of it pushing its expected capabilities. The scrub however might be signalling the end date for Ingenuity, related to servo motors that help control the helicpoter:

Ingenuity performs an automated check on the servos before every flight. This self-test drives the six servos through a sequence of steps over their range of motion and verifies that they reach their commanded positions after each step. We affectionately refer to the Ingenuity servo self-test as the “servo wiggle.”

The data from the anomalous pre-flight servo wiggle shows that two of the upper rotor swashplate servos – servos 1 and 2 – began to oscillate with an amplitude of approximately 1 degree about their commanded positions just after the second step of the sequence. Ingenuity’s software detected this oscillation and promptly canceled the self-test and flight.

Our team is still looking into the anomaly. To gather more data, we had Ingenuity execute additional servo wiggle tests during the past week, with one wiggle test on Sept. 21, 2021 (Sol 209) and one on Sept. 23, 2021 (Sol 211). Both of the wiggle tests ran successfully, so the issue isn’t entirely repeatable.

One theory for what’s happening is that moving parts in the servo gearboxes and swashplate linkages are beginning to show some wear now that Ingenuity has flown well over twice as many flights as originally planned (13 completed versus five planned). Wear in these moving parts would cause increased clearances and increased looseness, and could explain servo oscillation. Another theory is that the high-speed spin test left the upper rotor at a position that loads servos 1 and 2 in a unique, oscillation-inducing way that we haven’t encountered before.

Because communications with Mars are now paused for two weeks because the Sun is in the way, the engineering team is holding off further tests until communications resume.

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A Mars mesa carved by floods and lava?

1:29 pm

Overview map of Kasei Valles

With today’s cool image we once again start our journey from afar, and zoom in. The overview map to the right focuses in on the thousand-mile-long Kasei Valley on Mars.

The blue area is where scientists postulate a lake once existed, held there by an ice dam (indicated by the white line). At some point that ice dam burst, releasing the water in a catastrophic flood that created the braided flow features that continue down Kasei Valles to the northern lowland plain of Chryse Planitia.

The black area marks a giant lava flow that scientists believe came later, following the already carved stream channels for a distance of 1,000 miles, traveling at speeds of 10 to 45 miles per hour.

The red dot near the Kasei Valles resurgence is today’s cool image.
» Read more

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Flooding from crater lakes on Mars

9:36 am

Loire Valley on Mars

According to a new paper published today, scientists estimate that flooding from crater lakes on Mars — caused by sudden breaches in the crater rims — could have created as much as 25% of the volume of the valley networks that have been identified there.

Mars’ surface hosted large lakes about 3.5 billion years ago. Some of these lakes overtopped their rims, resulting in massive floods that rapidly formed deep canyons. Similar lake breach floods occurred in the northwest United States and central Asia at the end of the last glacial period over 15,000 years ago.

“We found that at least a quarter of the total eroded volume of Martian valley networks were carved by lake breach floods. This high number is particularly striking considering that valleys formed by lake breach floods make up just 3% of Mars’ total valley length,” Morgan said. “This discrepancy is accounted for by the fact that outlet canyons are significantly deeper than other valleys. These floods would have shaped the overall Martian topography, affecting the flow paths of other valleys. Our results don’t negate the importance of precipitation-fed runoff on early Mars. On the contrary, liquid water had to be stable for long enough for lakes to fill from inlet rivers.” [emphasis mine]

The map above shows in white the Loire Valles on Mars, located at about 20 degrees south latitude in transition zone between the northern lowland plains and southern cratered highlands. The paper cites this valley as a typical example of a flood valley caused by a crater rim breach.

This research only makes the geological and climate history of Mars more puzzling. Though the geological evidence strongly suggests lakes and liquid water once existed on Mars, and this research strengthens that conclusion (as indicated by the highlighted sentence above), no model of the planet’s climate has ever satisfactorily created a situation where that was possible. Either there are factors about Mars’ ancient history we have not yet identified (likely) and don’t yet understand (very likely), or the planet’s geology was formed by processes alien to Earth and thus not yet recognized by us.

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Government shutdown threatens Lucy asteroid mission

9:00 am

Government marches on! The possibility that the federal government could shut down because of the inability of Congress and the Biden administration to pass a funding bill or raise the debt limit now threatens the launch of the Lucy mission to the asteroid belt.

If no budget agreement is reached the government will shut down on October 1st. If the debt limit isn’t raised that shutdown could follow soon thereafter, even if a budget is passed.

The launch window for the mission is from October 16 to November 7, 2021. If the spacecraft does not launch in that window the science team says it will likely require a major rethinking of the entire project, as it will be difficult to find another opportunity to visit the same set of asteroids.

Right now the chances of a shutdown are very high, as the Democrats are pushing big spending bills without any negotiations with the Republicans. In answer, the Republican caucus has said that none of its members will support raising the debt limit. Without the latter any passed spending bill will soon be moot, as the debt limit will soon be reached, blocking further government spending.

Though I personally would be very saddened if Lucy was prevented from launching, that loss would be well compensated for by having the federal government out of business. The evil and corruption promoted by it far outweighs the good work done by several minor space missions.

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Hazygreyart – All SpaceX Launches From KSC in 4 Minutes 20 Seconds

6:01 pm

An evening pause: The video covers all launches through the beginning of this summer, when SpaceX paused for two months. Watch how the pace steadily picks up. If you watch closely you can also see boosters landing in the background.

I lot of people like to talk. Elon Musk likes to do. I’ll take his approach any day.

The song is Audionautix by Opus One.

Hat tip Martin Kaselis.

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Perseverance as seen from orbit

12:00 pm

Perseverance as seen from orbit
Click for full image.

Overview map
Click for interactive map.

The science team for the high resolution camera on Mars Reconnaissance Orbiter (MRO) have snapped a picture of Perseverance at its present location in Jezero Crater.

The first image to the right, cropped to post here, shows the rover as a white dot to the right of the two long sand dunes. If you look close image, you can see the rover’s tracks near the bottom of the image.

Ingenuity is likely also in the full image, but is likely too small for MRO’s high resolution camera to pick out.

The second image is a overview map. The green dot marks the rover’s position, with the red dot Ingenuity’s present position. The dotted white line shows the route the rover has taken so far. The light brown line indicates the flight paths for all of Ingenuity’s flights. The yellow dotted line indicates the future planned route of Perseverance.

With Mars about to slip behind the Sun, communications with both rovers, Perseverance and Curiosity, as well as all the orbiters, will shortly go silent for about two weeks.

When that pause ends, the question will be where Perseverance goes next. The original plan was to retreat back along its previous path, going to the southeast before heading north past the landing site. I strongly suspect that they will instead head directly to the landing site, going to the northeast across the rough terrain, both to see something new as well as further test the rover’s ability to travel tougher ground.

They avoided that area initially because they were still in the rover’s check out period. Now that they know it works, there is no reason to avoid that ground, especially because it will be ground they have not viewed before. They could even use Ingenuity to scout it out more thoroughly.

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BepiColombo about to make first of six Mercury flybys

11:16 am

The European/Japanese BepiColombo probe will make its first of six fly-bys of Mercury on October 1, 2021, as it steadily adjusts its flight path to enter orbit around the planet in 2025.

The mission is made up of two Mercury orbiters, Europe’s Mercury Planetary Orbiter and Japan’s Mio orbiter.

During the flybys it is not possible to take high-resolution imagery with the main science camera because it is shielded by the transfer module while the spacecraft is in cruise configuration. However, two of BepiColombo’s three monitoring cameras (MCAMs) will be taking photos from about five minutes after the time of close approach and up to four hours later. Because BepiColombo is arriving on the planet’s nightside, conditions are not ideal to take images directly at the closest approach, thus the closest image will be captured from a distance of about 1000 km.

The first image to be downlinked will be from about 30 minutes after closest approach, and is expected to be available for public release at around 08:00 CEST on Saturday morning. The close approach and subsequent images will be downlinked one by one during Saturday morning.

The cameras provide black-and-white snapshots in 1024 x 1024 pixel resolution, and are positioned on the Mercury Transfer Module such that they also capture the spacecraft’s solar arrays and antennas. As the spacecraft changes its orientation during the flyby, Mercury will be seen passing behind the spacecraft structural elements.

These will be the first close-up pictures of Mercury since the Messenger orbiter mission ended in 2015.

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United Kingdom’s new comprehensive space strategy: develop a robust private sector

10:45 am

Map of UK space strategy

Capitalism in space: The United Kingdom yesterday released a new comprehensive space strategy that seems generally focused on encouraging the growth of a private aerospace industry.

You can read the actual strategy here [pdf].

Though most of the text is high-sounding but mostly meaningless political talk, the overall strategy is excellent. It is focused not on creating a “space program” that the British government will design and build — what had been the traditional but generally unsuccessful approach since the 1960s — but to instead find ways to encourage the private sector to achieve what it wants to do. The map to the right, taken from the strategy document, illustrates this. The focus is entirely in supporting the growth of a commercial private industry by either creating industrial centers for space manufacturing or spaceports for launching satellites.

In this context, the vagueness of the strategy’s goals makes sense. The UK government has properly concluded that it is not its place to set those goals, but to let the commercial sector do it based on where they think they can make the most profit.

All in all, this strategy bodes well for the UK’s future in space.

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Blue Origin sets October 12th for next suborbital tourist flight

10:12 am

Capitalism in space: Blue Origin announced yesterday that it has scheduled October 12, 2021 for its next New Shepard suborbital tourist flight, carrying four passengers, two of which have been revealed.

The company has revealed two of the four crewmembers will be Chris Boshuizen, co-founder of Earth observation company Planet Labs, and Glen de Vries, vice chair for life sciences and healthcare at French software company Dassault Systèmes. The remaining two crewmembers will be announced in the coming days, Blue Origin said in a statement.

The NS-18 mission, the 18th flight overall for the New Shepard rocket, will lift off from Blue Origin’s Launch Site One in West Texas at 9:30 a.m. EDT (8:30 a.m. CDT or 1330 GMT) on Oct. 12. In addition to the four passengers, the flight will carry thousands of postcards from Blue Origin’s foundation, Club for the Future, which aims to inspire future generations to pursue careers in sciences, technology, engineering and mathematics (STEM).

There have been rumors that William Shatner will be one of the other passengers, but this has not yet been confirmed.

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Satellite company Terran Orbital to build big satellite factory in Florida

10:06 am

Capitalism in space: The satellite company Terran Orbital announced yesterday it will build a large factory to manufacture more than a 1,000 small satellites per year.

At the Launch and Landing Facility, formerly known as the NASA Space Shuttle Landing Facility, Terran Orbital, the parent company of Tyvak and PredaSAR, plans to claim 10 hangars for what Space Florida calls “the world’s largest satellite manufacturing facility.”

“Not only will we be able to expand our production capabilities to meet the growing demand for our products, but we will also bring valuable space vehicle manufacturing opportunities and capabilities to the State of Florida, investing over $300 million in new construction and equipment,” Marc Bell, Terran Orbital co-founder and CEO said in a statement. “By the end of 2025, we’re going to create approximately 2,100 new jobs with an average wage of $84,000.”

It appears that Lockheed Martin is both a customer for these satellites as well as one of Terran Orbital investors.

Regardless, with that many smallsats in the pipeline for construction provides one explanation why investors have been flocking to finance new rocket companies.

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China’s Long March 3B successfully launches satellite, which then fails

9:58 am

China’s Long March 3B rocket successfully launched a military satellite yesterday, though the satellite then had an undisclosed issue which caused it to fail.

Though the satellite failed to function immediately after launch, it appears the launch itself was successful, which based on my criteria means this launch is counted in China’s 2021 launch totals. The leaders in the 2021 launch race are thus:

34 China
23 SpaceX
15 Russia
4 Northrop Grumman

The U.S. still leads China 35 to 34 in the national rankings.

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Data suggests the winds in Jupiter’s Great Red Spot are changing

2:46 pm

Changing wind speeds in Great Red Spot
Click for original image.

Data accumulated from 2009 to 2020 by the Hubble Space Telescope suggest that the outer winds in Jupiter’s Great Red Spot have speeded up by about 8%, while the winds in the spot’s inner regions have slowed.

The change in wind speeds they have measured with Hubble amount to less than 1.6 miles per hour per Earth year. “We’re talking about such a small change that if you didn’t have eleven years of Hubble data, we wouldn’t know it happened,” said Simon. “With Hubble we have the precision we need to spot a trend.” Hubble’s ongoing monitoring allows researchers to revisit and analyze its data very precisely as they keep adding to it. The smallest features Hubble can reveal in the storm are a mere 105 miles across, about twice the length of the state of Rhode Island.

“We find that the average wind speed in the Great Red Spot has been slightly increasing over the past decade,” Wong added. “We have one example where our analysis of the two-dimensional wind map found abrupt changes in 2017 when there was a major convective storm nearby.”

The graphic above shows the different wind speeds between the spot’s inner and outer regions, not the increase in speed described in this press release.

To put it mildly, these results are uncertain. We simply could be seeing the long term random fluctuations in the storm, or the change could simply be a reflection of the data’s margin of error. Moreover, since the data covers only the top layer of the Great Red Spot, it tells us nothing about the storm’s deeper regions or its more fundamental origins.

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