Tag: spaceflight

The sea of dunes surrounding the Martian north pole

12:25 pm

The sea of dunes surrounding the Martian north pole
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on December 5, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a collection of wormlike dunes located in the giant sea of dunes that surrounds the Martian north pole ice cap.

North is to the top. The season when this picture was taken was northern winter. The Sun is barely above the horizon, only 8 degrees high, and shining from the southeast. Because it is winter it is also dust season, making the atmosphere hazy and thus making the light soft. No distinct shadows, except that the sides of the dunes facing away from the Sun are darkly shadowed.

The consistent orientation of the dunes suggests that the prevailing winds blow from the northeast to create the steep-sided alcoves. The wind however might not be the only factor to form these dunes.
» Read more

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Hakuto-R completes five of ten milestones on test flight

7:56 am

Ispace’s private commercial lunar lander, Hakuto-R, has now completed five of the ten milestones the company had established before launch as its goals on this first test flight to the Moon.

The first five milestones completed are:

  • Completion of launch preparations
  • Completion of launch and deployment
  • Establishment of a Steady Operation Status
  • Completion of the first orbital control maneuver
  • Completion of stable deep-space flight operations for one month

The next five milestones involve entering final lunar orbit and landing successfully, the most difficult milestones of all.

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SpaceX to build five Starship/Superheavy prototypes in 2023

7:51 am

According to Elon Musk, SpaceX intends to build five Starship/Superheavy prototypes in 2023 for flight testing.

Assuming they can get launch permits, these five rockets should provide the company ample launch testing capability for at least the next two years, especially if it succeeds in landing these units and can consider reusing them in test flights.

At this moment, the launch permits from the federal government appears the main obstacle to getting this heavy lift reusable rocket tested and operational.

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A Martian river canyon?

11:56 am

A Martian river canyon?
Click for full image.

Today’s cool image highlights the biggest mystery of Mars that has baffled scientists since the first good pictures of its surface were taken in the early 1970s by the Mariner 9 orbiter. The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on October 24, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows a very small segment of the 400-mile-long meandering canyon on Mars called Nigal Vallis. From the Wikipedia page:

The western half of Nirgal Vallis is a branched system, but the eastern half is a tightly sinuous, deeply entrenched valley. Nirgal Vallis ends at Uzboi Vallis. Tributaries are very short and end in steep-walled valley heads, often called “amphitheater-headed valleys.”

We can see one of those short tributaries on the image’s left edge. The overview maps below provide a wider view of this entire canyon.
» Read more

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SpaceX’s Falcon Heavy successfully launches Space Force satellites

4:06 pm

SpaceX’s Falcon Heavy rocket today successfully launched a Space Force communications satellite plus a secondary military payload.

The two side boosters completed their second flight, landing at Cape Canaveral. The core stage was not recovered, as planned. Actual deployment of the satellites will not occur for another six hours.

At this moment China leads SpaceX 5 to 3 in the 2023 launch race. No one else has as yet launched successfully.

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Russia delays three planned lunar probes because of sanctions

10:56 am

The research division that is building Russia’s Luna 26, Luna 27, and Luna 28 probes to the Moon announced today that these missions will likely be delayed up to two years because many needed components are no longer obtainable due to the international sanctions imposed on Russia because of its invasion of the Ukraine.

“Previously, we designed equipment using foreign components that we could buy from our foreign colleagues. Now that the sanctions have been imposed, we will [be switching to] Russian-made components,” Mitrofanov explained. According to him, researchers have to change design solutions amid the Western restrictions.

Some of these components cannot be so easily replaced by Russian versions. Assuming the Ukraine war does not end soon, expect even longer delays for these unmanned lunar missions.

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Stratolaunch’s Roc airplane completes 2nd captive-carry test flight

3:48 pm

Stratolaunch’s giant Roc airplane, the largest in existence, successfully completed its second captive-carry test flight, carrying a Talon-A (TA-0) hypersonic test vehicle under its central fuselage during take-off and landing.

The flight set a new duration record lasting a total of six hours and reached a maximum altitude of 22,500 ft., representing another important step forward in the company’s near-term goal of completing separation testing with TA-0. Primary test objectives included flight outside of the local Mojave area for the first time and evaluation of the separation environment. Roc and TA-0’s onboard data systems provide critical information on the aerodynamic loads and moments prior to release of TA-0, helping to ensure safe separation of the vehicle from Roc. The flight team also practiced chase formation and communication sequencing for the upcoming separation test.

The company has a contract with the Air Force to use the operational Talon-1 spacecraft, released from Roc, to do hypersonic test flights, hopefully in the first half of 2023.

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Sweden cuts ribbon on Esrange spaceport

3:42 pm

Sweden yesterday officially inaugurated a new commercial launch site at the Esrange spaceport that the ESA had used previously for suborbital tests.

The site is an extension of the Esrange Space Centre in Sweden’s Arctic, around 40 kilometres (25 miles) from the town of Kiruna. Around 15 million euros ($16.3 million) have been invested in the site, which is expected to serve as a complement to Europe’s space hub at Kourou in French Guiana. It will also provide launch capabilities at a time when cooperation with Russia and the Baikonur launch site in Kazakhstan has been curtailed by the war in Ukraine.

Esrange’s state-owned operator, the Swedish Space Corporation (SSC), aims to launch its first satellite from the site “in the first quarter of 2024”, a spokesman told AFP on Friday.

At this moment, there are three commercial rocket spaceports racing to complete the first orbital launch from Europe. Esrange in Sweden and the two UK spaceports, Spaceport Sutherland in Scotland and SaxaVord in the Shetland Islands. Cornwall in the UK is an airport, so it can only launch rockets that use an airplane, which essentially limits its launch customers to Virgin Orbit.

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Chinese company based in Hong Kong signs deal to build spaceport in Djibouti, Africa

2:57 pm

Djibouti's location in Africa
Djibouti’s location is indicated in black.

The government of Djibouti, one of the smallest nations in Africa and located at the southern end of the Red Sea, has signed an agreement with a pseudo Chinese company, the Hong Kong Aerospace Technology Group, to build a major spaceport there.

According to the translated press release, the five year project will cost one billion dollars, include a lease for 30 years, and involve the construction of a port, highway, and electrical power distribution system.

As much as Hong Kong for more than two centuries has been a haven for private enterprise, it is now under the control of the communist Chinese, and they would not allow anyone from Hong Kong to make such a deal unless they were in full control.

Based on the map, there is almost no launch path out of Djibouti that will not cross another nation’s territory. Unless the Chinese plan to make all the first stages launched from this site reusable, they are going to dropping stages on a lot of people’s heads, without their permission. And they will be doing it to some places where war is often and continues to be the most frequently used negotiating tactic.

Hat tip to stringer Jay.

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Searching for surface changes caused by the biggest recorded Martian quake

1:27 pm

Location of May quake
The white patches mark the locations on Mars of the largest quakes detected by InSight

On May 4, 2022, the seismometer on the InSight Mars lander detected a 4.7 magnitude earthquake on Mars, the largest ever detected.

The map to the right shows the approximate location of that quake by the white patch with the green dot. (You can read the paper describing this quake here [pdf].) This is also the same approximate location of a small five-mile-wide crater known to have many slope streaks on its interior walls.

Slope streaks are a uniquely Martian geological feature whose origin remains unknown. They resemble dark avalanche streaks flowing downhill, but make no changes in the topography, and lighten with time. They also occur randomly throughout the year. Two slightly different theories for their formation suggest that the streaks are triggered by the fall of dust particles, though neither is proven or even favored.

If either of these theories are true, then the 4.7 magnitude earthquake at this location should have caused the formation of more streaks. To find out, scientists have used the high resolution camera on Mars Reconnaissance Orbiter (MRO) to compare that crater both before and after the quake to see if any new streaks has appeared. Below is a side-by-side comparison of these images.
» Read more

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FCC votes to create its own space bureaucracy, despite lacking statutory authority

9:55 am

On January 9, 2023 the commissioners of the Federal Communications Commission FCC voted [pdf] to create its own space bureaucracy designed to regulate the lifespan of new satellites, despite lacking legal authority to do so.

As noted almost as an aside by this news article,

In order for the planned changes to go into effect, the FCC will first have to obtain congressional approval for the reorganization and place a notice in the Federal Register.

This vote pushed forward the plan announced in November that attempts to expand the regulatory power of the FCC beyond its legal authority. Expect Congress to push back somewhat, but right now most power in Washington is held by unelected bureaucracies like the FCC, not the elected legislators as defined by the Constitution. The FCC will continue to push hard, and mostly win in this power game. Congress right now is too divided and weak to fight back.

The result will be new regulations on satellite construction made by non-engineers and paper-pushers in the FCC, not engineers and managers in the companies actually building the satellites.

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Lunar Flashlight cubesat in trouble

9:18 am

The mission of NASA’s test cubesat Lunar Flashlight is now threatened because of a problem with its experimental thrusters that use what the agency labels a new “green” propellant.

The spacecraft, called Lunar Flashlight, launched last month on a mission to seek out water ice on the moon. The probe was also expected to test a new “green” propellant during its four-month voyage to the moon, but its thrusters have a problem, NASA said on Thursday (Jan. 12). “While the smallsat is largely healthy and communicating with NASA’s Deep Space Network, the mission operations team has discovered that three of its four thrusters are underperforming,” NASA wrote in an update. “Based on ground testing, the team thinks that the underperformance might be caused by obstructions in the fuel lines that may be limiting the propellant flow to the thrusters.”

Engineers are now devising a plan to fire the thrusters longer and more frequently to make up for the lower thrust. If successful, the cubesat will enter its planned lunar orbit in about four months, where it will use infrared lasers to search for ice in the permanently shadowed craters at the lunar poles while testing a variety of other new technologies.

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China completes two launches today

9:07 am

China today continued its normal fast pace of winter launches, launching twice from two different spaceports.

First, a Long March 2C rocket launched a communications satellite from the Xichang Satellite Launch Center in southwest Sichuan Province. Then, a Long March 2D rocket launched three classified technology test satellites from the Jiuquan Satellite Launch Center in northwest China.

As I noted in yesterday’s quick space links, the drop zones for both were in China. No word as yet on whether anything fell near habitable area.

At present the 2023 launch race consists entirely of China with four launches, and SpaceX with two.

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Racing above the clouds of Jupiter

11:28 am

Racing above the clouds of Jupiter
Click for full image.

Cool image time! The photo above, reduced in size to post here, was created from a raw Juno image by citizen scientist Kevin Gill. From his caption:

A low perspective over Jupiter’s North Polar Storms. Used imagery from the Juno spacecraft’s recent Perijove 47 to render a simulated view as if the viewer were only a few thousand kilometers above the clouds. Applied simulated altimetry, shadowing, and upper atmospheric transparency depth in Blender and Photoshop to render this.

To get some perspective on how large Jupiter is, the planet’s curve is about comparable to the same curve seen by astronauts of the Earth at a height of about 300 to 400 kilometers. In this image however we are about ten times higher.

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First exoplanet confirmed by Webb

10:23 am

Astronomers have used for the first time the Webb Space Telescope to confirm the existence of an exoplanet, previous noted in data from the orbiting TESS telescope.

Formally classified as LHS 475 b, the planet is almost exactly the same size as our own, clocking in at 99% of Earth’s diameter. The research team is led by Kevin Stevenson and Jacob Lustig-Yaeger, both of the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland.

The team chose to observe this target with Webb after carefully reviewing targets of interest from NASA’s Transiting Exoplanet Survey Satellite (TESS), which hinted at the planet’s existence. Webb’s Near-Infrared Spectrograph (NIRSpec) captured the planet easily and clearly with only two transit observations.

The data is still preliminary, so more analysis is necessary to provide some information about the planet’s atmosphere.

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German rocket startup signs deal with UK spaceport

10:17 am

Rocket Factory Augsburg (RFA), a German rocket startup, has signed a deal with the SaxaVord spaceport in the Shetland Islands of Scotland to fly its first launch from there later this year.

Rocket Factory Augsburg (RFA) has signed a multi-year deal with the SaxaVord spaceport, being built in Unst, for the first launch of its satellite-carrying rockets. After testing at the site in mid-2023, it hopes to launch to a 500km orbit by the end of the year.

Because of the failure of the Virgin Orbit launch from Cornwall earlier this week, the honor of being the first orbital launch from within the United Kingdom remains ungrabbed. Both SaxaVord and Spaceport Sutherland, also in Scotland but at a different location, are now competing for that honor. Both now have planned launches this year, assuming the Civil Aviation Authority of the UK can issue a permit in less than fifteen months.

Meanwhile, Rocket Factory is competing with two other German startups for the honor of being the first commercial private European rocket company to reach orbit.

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China is planning 60-plus launches in 2023

10:08 am

According to an article today in China’s state-run press, China is planning 60-plus launches in 2023, matching approximately its launch rate in 2022.

The China Aerospace Science and Technology Corporation (CASC) is expected to have more than 50 launches, and other Chinese space enterprises will have more than 10 launches.

If this number is accurate, it suggests a slowdown in activity by the many pseudo-companies that the Chinese government has allowed to form to compete for government and commercial business. Two years ago it appeared that these companies were launching at a faster rate, even many of those launches were failures.

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American camera snaps picture of shadowed floor of Shackleton crater

10:03 am

floor of Shackleton Crater
Click for original image.

Using ShadowCam, a NASA-funded camera designed to take high resolution images of the permanently shadowed regions on the Moon, scientists have snapped the first picture of shadowed floor of Shackleton crater.

That image, reduced to post here, is to the right. I have added some labels to clarify what we are seeing. The arrow points to a boulder track caused when the boulder rolled down the crater rim slope.

The camera will be used to image the moon’s permanently shadowed regions with a resolution of better than 6.6 feet (2 meters) per pixel

ShadowCam is one of six instruments on the South Korean lunar orbiter, Danuri, which is now in lunar orbit and beginning its science phase. This was therefore only a successful test image to make sure the camera was working as planned.

Though the area photographed was in shadow (otherwise it would have saturated ShadowCam’s sensitive camera), this first image appears to show no ice at the base of the crater. This simply could be that this part of the crater floor is not permanently shadowed, but gets illuminated enough to melt off any ice. Or it could be that no ice exists in these places. We need to wait and see.

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Russia and Europe negotiating return of rockets and satellites

9:44 am

Russia and Europe have begun negotiations concerning the return of the various rockets and satellites that were left stranded in both countries when Russia invaded the Ukraine and all cooperative international agreements between the two entities broke off.

[I]n January 2023, an industry source told RussianSpaceWeb.com that Arianespace representatives were exploring a potential deal with Roskosmos on the exchange of Soyuz rocket components stranded in French Guiana for a group of 36 OneWeb satellites stuck in Baikonur Cosmodrome in Kazakhstan after the aborted 14th launch for the Internet constellation. The satellites were held at the Russian-controlled facility in Kazakhstan per the order by Rogozin, but the newly appointed head of the Roskosmos State Corporation Yuri Borisov was reportedly opened to negotiations on their fate.

There are many obstacles blocking this deal, the biggest being the on going war itself. It will be necessary to engineers to both places to facilitate the return, and the war right now makes that difficult if not impossible.

Ironically, Russia is likely in more need of this deal than Europe. OneWeb of course wants its satellites back, but it can replace them. Russia it appears is having trouble building complex things like rockets, and needs these rockets and components to replace components it no longer can get in the west.

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Saudi Arabia withdraws from Moon Treaty

10:15 pm

On January 5, 2023, Saudi Arabia submitted its official withdrawal [pdf] from Moon Treaty, to be effective one year later.

The 1979 Moon Treaty is not the 1967 Outer Space Treaty, which almost all space-faring nations have signed. The Moon Treaty has been signed by almost no one because its language literally forbids private ownership.

In a sense, the Artemis Accords, which Saudi Arabia recently signed, is in direct conflict with the Moon Treaty, and no nation can really honor both. The Artemis Accords were designed by the Trump administration to get around the less stringent restrictions on private enterprise imposed by the Outer Space Treaty. That it has encouraged the Saudis to leave the Moon Treaty, however, suggests that the Artemis Accords might eventually cause a major abandonment of the Outer Space Treaty as well. To withdraw from such treaties up until now has been considered taboo. Saudi Arabia might have broken that spell.

If so, this action by the Saudis could be the best news for the future exploration and settlement of the solar system that has occurred in years, even more significant than that first vertical landing of a Falcon 9 rocket. It might finally force a major revision in the Outer Space Treaty so that each nation’s laws can be applied to its own colonies.

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Astronomers discover more than 800 new supermassive black holes

3:54 pm

Using archival data from both the orbiting Chandra X-Ray telescope and the ground-based Sloan Digital Sky Survey telescope (SDSS), astronomers have discovered more than 800 new supermassive black holes hidden in the center of galaxies.

By systematically combing through the deep Chandra Source Catalog and comparing to SDSS optical data, the researchers identified 817 XBONG candidates, more than ten times the number known before Chandra was in operation. Chandra’s sharp images, matching the quality of those from SDSS, and the large amount of data in the Chandra Source Catalog made it possible to detect this many XBONG candidates. Further study revealed that about half of these XBONGs represent a population of previously hidden black holes.

The key to this discovery is the use of telescopes observing in different wavelengths, X-rays with Chandra and optical with SDSS. Combined the data showed evidence of the hidden supermassive black holes.

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A collapse on Mars

1:34 pm

A collapse on Mars
Click for full image.

The photo to the right, cropped, reduced, and enhanced to post here, was taken on October 27, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The full photo was simply labeled as a “collapse feature”, and because it contained a few other sinks to the north beyond the top edge of this cropped picture, it is unclear if the scientists were referring to this sink in particular.

This sink is the most interesting however, because it really looks like something had sucked material out from below, causing the surface crust to fall downward, intact except for some cracks along the perimeter of the collapse.

The overview map below as always provides some context that might explain what we are seeing.
» Read more

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A new hotspot map of Io, based on Juno data

11:52 am

Hot spot map of Io
Click for original figure.

Scientists have compiled a new map of the many volcanic hotspots on the Jupiter moon Io, based on data obtained by Juno, including 23 spots previously undetected. From the paper’s abstract:

We mapped the hot spot distribution on Io’s surface by analyzing the images acquired by the JIRAM instrument onboard the Juno spacecraft. We identified 242 hot spots, including 23 not present in other catalogs. A large number of the new hot spots identified are in the polar regions, specifically in the northern hemisphere. The comparison between our work and the most recent and updated catalog reveals that JIRAM detected 82% of the most powerful hot spots previously identified and half of the intermediate-power hot spots, thus showing that these are still active. JIRAM detected 16 out of the 34 faint hot spots previously reported.

The map above is taken from figure 2 of the paper. The data, when compared to other earlier data, confirms that many of these hot spots are long-lived, and have been erupting now for decades.

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Ingenuity about to fly up onto the delta

10:21 am

Overview map
Click for interactive map.

The engineering team that operates the helicopter Ingenuity on Mars announced today that the next flight, #39, will go about 456 feet and travel to the northeast.

The green dot on the map to the right shows Ingenuity’s present location. The yellow lines indicate the territory within which this flight will head. If successful it will be the first time the helicopter has left the floor of Jezero Crater, and moved uphill onto the delta that flowed into that crater sometime in the far past.

The blue dot marks Perseverance’s present location. The dotted red line indicates its eventual planned route on that delta.

The engineers state that their flight goal is to “flight test new software”. This new software is supposed to allow Ingenuity to fly over rougher terrain. On the 38th flight, it proved its worth by not only flying over an area of rippled sand dunes, it landed between two.

This next flight, scheduled for sometime today, will be even more challenging, because the helicopter will have to fly upward above higher terrain.

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World View gets new lease from Pima County

9:54 am

Because the original lease was ruled unconstitutional under the Arizona state constitution, Pima County yesterday approved a new lease for the high altitude balloon company World View.

The original deal had the county build the building. World View would lease it for 20 years, guarantee employment of 400 people, and then buy the facility for $10 at the end of the lease. This was ruled unconstitutional.

Lesher said [the new lease] will give the county more flexibility and a safeguard when it comes to those terms and they’ll be able to base the appraisal price on a percentage of the fair market value. Another big change – the employee benchmark has been significantly lowered. In the original contract, World View was required to hire 400 workers, now that’s down to 125.

Until more details are provided, it is unclear what has changed to make the new deal acceptable to the courts. I suspect the big change is that World View will not have an option to buy for $10.

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TESS finds a second Earthsize planet orbiting in the habitable zone of a star

9:37 am

TESS solar system

The orbiting survey telescope TESS has discovered a second Earthsize planet in a solar system of four exoplanets.

The graphic to the right, a screen capture from a short video provided by the press release, shows these four exoplanets. Planet D had previously been discovered. Planet E is the new discovery, and is thought to be 95% Earth’s mass and likely terrestrial in make-up. Both are near the inner edge of the habitable zone.

TOI 700 is a small, cool M dwarf star located around 100 light-years away in the southern constellation Dorado. In 2020, Gilbert and others announced the discovery of the Earth-size, habitable-zone planet d, which is on a 37-day orbit, along with two other worlds.

The innermost planet, TOI 700 b, is about 90% Earth’s size and orbits the star every 10 days. TOI 700 c is over 2.5 times bigger than Earth and completes an orbit every 16 days. The planets are probably tidally locked, which means they spin only once per orbit such that one side always faces the star, just as one side of the Moon is always turned toward Earth.

This discovery only underlines the infinite possibilities and variables that exist for life on other worlds. These planets might be similar in mass to the Earth and get about the same heat/light energy from their sun, but the star is very different, their orbits are very different, and their environment is very different.

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Leaking Soyuz to return empty; Unmanned Soyuz to be launched to replace it

9:23 am

The Russians announced today the plan to deal with the leaking Soyuz capsule on ISS as well as provide transportation back to Earth for its three astronauts.

First, the damaged Soyuz will return empty to Earth. Second, the next Soyuz will be launched in February unmanned so that it can bring back all three astronauts. Their mission however will likely be extended. Instead of returning in March as planned, they will stay in orbit until September, when that capsule was originally going to return to Earth. If this happens, it means their flight will end up being about a full year long. For the American in that crew, Frank Rubio, this could mean he will set a new American record for the longest spaceflight.

The Russians also added these details about the puncture in the Soyuz, which is believed to have been caused by a meteor:

According to calculations, a hole in the instrument compartment of the spacecraft, observed with a camera of the American ISS Segment, could be caused by a one-millimeter particle striking the vehicle with a speed of around 7,000 meters per second. Borisov also said that a possibility of a manufacturing defect in the radiator system of Soyuz MS-22 had also been evaluated but had not been confirmed.

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ABL’s first launch attempt fails

9:14 am

The first launch of ABL’s RS1 rocket failed yesterday when the first stage engines shut down right after liftoff so that the rocket fell back onto the launchpad and exploded.

The company said in subsequent updates that the nine engines in its first stage shut down simultaneously after liftoff, causing the vehicle to fall back to the pad and explode. The company did not disclose when after liftoff the shutdown took place or the altitude the rocket reached. The explosion damaged the launch facility but no personnel were injured.

This rocket startup has raised several hundred million dollars, with its chief investor Lockheed Martin, which has also signed a contract for as many as 58 RS1 launches.

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