Tag: spaceflight

Argentina signs Artemis Accords

9:16 am

Argentina yesterday became the 28th nation to sign the Artemis Accords.

Originally conceived by the Trump as a series of bi-lateral agreements between the U.S. and another country in order to strengthen property rights in space as well as build a U.S. alliance in space, the Biden administration has been more focused on the latter, using the accords more as a tool to increase international cooperation.

The full list of signatories to the Artemis Accords is now as follows: Argentina, Australia, Bahrain, Brazil, Canada, Columbia, Czech Republic, Ecuador, France, India, Israel, Italy, Japan, Luxembourg, Mexico, New Zealand, Nigeria, Poland, Romania, Rwanda, Saudi Arabia, Singapore, South Korea, Spain, the United Kingdom, the United Arab Emirates, the Ukraine, and the United States.

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SpaceX’s Falcon 9 launches another 22 Starlink satellites

9:13 pm

SpaceX tonight successfully put another 22 Starlink satellites into orbit, with its Falcon 9 rocket lifting off from Cape Canaveral.

The first stage completed its fifteenth flight, landing safely on a drone ship in the Atlantic. The two fairing halves completed their second flight.

The leaders in the 2023 launch race:

50 SpaceX
29 China
9 Russia
6 Rocket Lab

American private enterprise now leads China in successful launches 57 to 29, and the entire world combined 57 to 48, with SpaceX by itself leading the entire world (excluding American companies) 50 to 48.

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Endless dunes in the dry Martian equatorial region

1:01 pm

Endless dunes in the dry Martian equatorial region
Click for original image.

Cool image time! The picture to the right, rotated, cropped, and sharpened to post here, was taken on May 14, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a small section of a vast dune field, 50 miles square, that sits about 225 miles south of the southern foothills of Mars’ biggest volcano, Olympus Mons.

The dunes are probably less than 20 feet high, with that one small hill only slightly higher. Their similar orientation, which extends across the entire 50-mile-square dune field, indicates the direction of the prevailing winds, which I think (but will not swear to it) is from the southeast to the northwest, which also happens to also follow the grade downhill to the northwest.

It is also possible that wind direction is the reverse, and goes uphill to the southwest.
» Read more

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Scientists think they have finally discovered what makes the Sun’s corona so hot

10:31 am

Using data from Europe’s Solar Orbiter spacecraft, scientists now think they have finally pinpointed the process that causes the Sun’s corona — its atmosphere — to be many times hotter than its surface.

For decades, scientists have been struggling to explain why temperatures in the sun’s outer atmosphere, the corona, reach mind-boggling temperatures of over 1.8 million degrees Fahrenheit (one million degrees Celsius). The sun’s surface has only about 10,000 degrees F (6,000 degrees C), and with the corona farther away from the source of the heat inside the star, the outer atmosphere should, in fact, be cooler.

New observations made by the Europe-led Solar Orbiter spacecraft have now provided hints to what might be behind this mysterious heating. Using images taken by the spacecraft’s Extreme Ultraviolet Imager (EUI), a camera that detects the high-energy extreme ultraviolet light emitted by the sun, scientists have discovered small-scale fast-moving magnetic waves that whirl on the sun’s surface. These fast-oscillating waves produce so much energy, according to latest calculations, that they could explain the coronal heating.

You can read the paper here [pdf]. The results have not yet been confirmed, but if so it will solve one of the space age’s oldest scientific mysteries.

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Astronomers chemically map a significant portion of the Milky Way

10:19 am

The chemistry of the Milky Way's nearby spiral arms
Red indicates areas with lots of heavier elements, blue indicates
areas dominated by hydrogen and helium. Click for original image.

Astronomers have now used today’s modern survey telescopes — on Earth and in space — to map the chemistry of a large portion of the Milky Way’s nearby spiral arms, revealing that the arms themselves are rich in heavier elements, indicating greater age and the right materials to produce new stars and solar systems like our own.

If the Milky Way’s spiral arms trigger star births as predicted, then they should be marked by young stars, aka metal-rich stars. Conversely, spaces between the arms should be marked by metal-poor stars.

To confirm this theory, as well as create his overall map of metalicity, Hawkins first looked at our solar system’s galactic backyard, which include stars about 32,000 light years from the sun. In cosmic terms, that represents our stellar neighborhood’s immediate vicinity.

Taking the resultant map, the researcher compared it to others of the same area of the Milky Way created by different techniques, finding that the positions of the spiral arms lined up. And, because he used metalicity to chart the spiral arms, hitherto unseen regions of the Milky Way’s spiral arms showed up in Hawkins’ map. “A big takeaway is that the spiral arms are indeed richer in metals,” Hawkins explained. “This illustrates the value of chemical cartography in identifying the Milky Way’s structure and formation. It has the potential to fully transform our view of the Galaxy.”

You can read the science paper here [pdf]. Based on this initial mapping effort, it appears that it will not be long before a large percentage of our own galaxy will be mapped in this manner.

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FTC will not block the purchase of Aerojet Rocketdyne by L3Harris

10:03 am

How nice of them! The Federal Trade Commission (FTC) said yesterday that it will not block the planned purchase of Aerojet Rocketdyne by L3Harris, which the company expects to now complete in mere days.

The deal, if finalized, would place L3Harris on a solid footing to achieve Kubasik’s long-stated goal of positioning the company as the sixth major defense prime.

The forthcoming acquisition has also garnered support from an unlikely source: RTX, the parent company of missiles giant Raytheon. Executives from the company, which rely on Aerojet to deliver crucial parts, have been open in recent weeks that while they don’t love strengthening a competitor, they feel Aerojet is in desperate need of new leadership. “We’ve obviously always been concerned about Aerojet. But I would say some of these things have been magnified by all these external inputs,” Wes Kremer, Raytheon president, told Breaking Defense during last month’s Paris Air Show.

Aerojet has had problems for years, especially because the rocket engines it makes are very expensive. It has failed to garner any market share in the new emerging rocket industry, remaining dependent entirely on very generous government contracts and the older big space contractors. But even here, it lost out to Blue Origin when ULA was looking for engines for its new Vulcan rocket.

It is likely that after this merger, the name Aerojet Rocketdyne will vanish, a sad end to a company whose roots go back to the very beginning of the space age.

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Juno’s next fly-by of Io coming on July 30

9:54 am

Io as seen by Juno
An image of Io from the March fly-by

The Juno science team is gearing up for the spacecraft’s next fly-by of the Jupiter moon Io, scheduled for July 30, 2023.

When NASA’s Juno mission flies by Jupiter’s fiery moon Io on Sunday, July 30, the spacecraft will be making its closest approach yet, coming within 13,700 miles (22,000 kilometers) of it. Data collected by the Italian-built JIRAM (Jovian InfraRed Auroral Mapper) and other science instruments is expected to provide a wealth of information on the hundreds of erupting volcanoes pouring out molten lava and sulfurous gases all over the volcano-festooned moon.

The image to the right was taken from 33,000 miles during the March fly-by, almost three times farther away. The dark spots are volcanoes, and some showed significant change from earlier images.

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Boeing’s total losses due to Starliner now equal $1.5 billion

9:44 am

According to CNBC, the total losses for Boeing due to its on-going and persistent engineering problems flying its manned Starliner capsule now equal almost $1.5 billion, not $1.1 billion as estimated yesterday.

Since 2014, when NASA awarded Boeing with a nearly $5 billion fixed-price contract to develop Starliner, the company has recorded losses on the program almost every year. The charges total $1.47 billion, according to its annual reports and the company’s most recent quarterly filing.

The annual losses have ranged from $57 million in 2018 to $489 million in 2019.

At this moment, the only way Boeing can make a profit on Starliner is to garner a lot of other tourist customers, outside NASA. The problem is that SpaceX’s already operational fleet of four manned Dragon capsules has captured that market, with a capsule and rocket that has demonstrated remarkable reliability. To convince others to fly on Starliner it will have to fly it a lot beforehand in order to convince others its problems have really been fixed. This will take time and money, which will only add to the red ink.

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OSIRIS-REx completes last major mid-course correction before sending its sample capsule back to Earth

9:38 am

OSIRIS-REx yesterday completed a 63 second engine burn, successfully aiming the spacecraft so that its September 24th drop off of its sample capsule will hit the Earth as planned.

Preliminary tracking data indicates OSIRIS-REx changed its velocity, which includes speed and direction, by 1.3 miles, or 2 kilometers, per hour. It’s a tiny but critical shift; without course adjustments like this one the spacecraft would not get close enough to Earth on Sept. 24 to drop off its sample of asteroid Bennu. The spacecraft is currently 24 million miles, or 38.6 million kilometers, from Earth, traveling at about 22,000 miles, or about 35,000 kilometers, per hour.

In the two weeks prior to that drop-off the spacecraft will do two more short burns to refine its aim so that the sample capsule will land precisely as planned on the Defense Department’s Utah Test and Training Range near Salt Lake City.

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FAA: No Starship/Superheavy launch until we say so!

9:30 am

We’re here to help you! The FAA yesterday stated in no uncertain terms that there will be no additional orbital test launches of SpaceX’s Starship/Superheavy until it has decided the launch will be safe.

The FAA, which is overseeing an investigation into the April 20 launch, said Wednesday it was still awaiting the report it needs to identify corrective actions SpaceX must take to get the OK to launch again from Boca Chica.

An FAA spokesperson declined to speculate when the agency’s investigation might be completed, saying that “public safety and actions yet to be taken by SpaceX will dictate the timeline.”

“The FAA will not allow a return to flight operations until it determines that any system, process, or procedure related to the mishap does not affect public safety or any other aspect of the operator’s license,” the spokesperson said. “The mishap investigation is ongoing.”

The implication that the FAA is awaiting completion of SpaceX’s own investigation sounds like an attempt to shift the blame for the delay from the government to SpaceX, even though the company has made it very evident in words and deeds that it is moving quickly and will be ready to launch in August.

This threat of a delay is hardly a surprise. I predicted in late April that the federal bureaucracy is targeting SpaceX, and by late May predicted the the FAA would block this August launch attempt.

It is also important to underline the fact that there is absolutely no one at the FAA capable of or knowledgeable enough to competently assess the safety of the next launch. The only people who can really do that are the engineers at SpaceX. All the FAA can do is reject SpaceX’s investigation — for political reasons — and demand SpaceX take additional actions, based merely on random guesses as to what needs to be done. And it can keep doing this repeatedly.

This launch is likely to be delayed many months. You heard it here first.

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Giant glaciers in the northern Martian mid-latitudes

12:57 pm

Overview map

Giant glaciers in the northern Martian mid-latitudes
Click for original image.

It is time for two cool images! The picture to the right, cropped, reduced, and sharpened to post here, was taken on May 10, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and is one of two glaciers imaged by MRO in May that are among a whole series of glaciers flowing down the south wall of the same mesa.

The red dot in the inset and on the overview map above marks the location of the picture to the right. The white dot marks the location of the May 27, 2023 picture, which can be seen here.

The unnamed 10,000-foot-high mesa from which these glaciers flow, located in the middle of the 2,000-mile-long northern mid-latitude strip I dub glacier glacier country, is about 41 miles long and 18 miles wide at its widest point. The glacier to the right falls about 6,000 feet in about four miles, making the grade steep, ranging from 15 to 23 degrees. That steepness explains the split in the glacier, as it flowed around a huge piece of higher bedrock in the middle of this descending hollow.

Both images provide further evidence of the dominance of glaciers in this mid-latitude region. While the glaciers are all covered with dust and debris to protect the ice, and are also thought at present to all be inactive, they also all suggest a very dynamic Martian geological and climate history, one that will likely come alive again as the planet’s rotational tilt naturally shifts back and forth from its present 25 degree tilt to 11 to 60 degrees.

The glaciers also show us again that Mars is not a dry desert, but above 30 degrees latitude it is an icy desert much like Antarctica. Colonists will have no trouble finding water.

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Optical image of accretion disk around baby star, taken by ground-based VLT

10:59 am

Stellar accretion disk
Click for original image.

Scientists today released an optical image of the accretion disk that surrounds a baby star about 5,000 light years away, taken by ground-based Very Large Telescope (VLT) in Chile and enhanced by data from the Atacama Large Millimeter/submillimeter Array (ALMA), also in Chile.

That image, reduced to post here, is to the right. The bright blue spot in the center is the main star, with the smaller dot to the lower left a companion star. From the press release:

The VLT observations probe the surface of the dusty material around the star, while ALMA can peer deeper into its structure. “With ALMA, it became apparent that the spiral arms are undergoing fragmentation, resulting in the formation of clumps with masses akin to those of planets,” says Zurlo.

Astronomers believe that giant planets form either by ‘core accretion’, when dust grains come together, or by ‘gravitational instability’, when large fragments of the material around a star contract and collapse. While researchers have previously found evidence for the first of these scenarios, support for the latter has been scant.

This data suggests that the latter is being observed, the first time gravitational instability has been identified as it is happening. You can read the scientist’s research paper here [pdf].

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Infrared Webb image of a binary baby star system and its surrounding jets and nebula

10:47 am

Webb infrared image of HH 46/47
Click for original image.

Cool image time! The infrared picture to the right, cropped, reduced, and sharpened to post here, was taken by the Webb Space Telescope of the jets and nebula of the Herbig–Haro object dubbed HH 46/47, thought to contain a pair of baby stars under formation.

The most striking details are the two-sided lobes that fan out from the actively forming central stars, represented in fiery orange. Much of this material was shot out from those stars as they repeatedly ingest and eject the gas and dust that immediately surround them over thousands of years.

When material from more recent ejections runs into older material, it changes the shape of these lobes. This activity is like a large fountain being turned on and off in rapid, but random succession, leading to billowing patterns in the pool below it. Some jets send out more material and others launch at faster speeds. Why? It’s likely related to how much material fell onto the stars at a particular point in time.­­­

The stars’ more recent ejections appear in a thread-like blue. They run just below the red horizontal diffraction spike at 2 o’clock. Along the right side, these ejections make clearer wavy patterns. They are disconnected at points, and end in a remarkable uneven light purple circle in the thickest orange area. Lighter blue, curly lines also emerge on the left, near the central stars, but are sometimes overshadowed by the bright red diffraction spike.

To see optical images of HH 46/47 as well as some further background, go here. It is one of the most studied HH objects, which is why it was given priority in Webb’s early observation schedule.

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A Dragon cargo capsule had a valve issue at ISS in June

10:30 am

The Dragon cargo capsule that had been docked to ISS in June apparently had a faulty valve that impacted no operations but has required SpaceX to review similar valves on all manned and cargo Dragon capsules.

The valve — known as an isolation valve — is designed to come on in case of a thruster leak, Reed said during the press conference. Since no leak was happening at the time it was stuck open, the valve “didn’t have to serve any purpose.”

The affected spacecraft, known as CRS-28, otherwise returned to Earth normally on June 30 after 25 days in space. After checking into the valve on CRS-28, SpaceX looked at its entire spacecraft line. They found “corrosion among certain units,” Reed said, which SpaceX is looking into identifying and addressing.

Knowing SpaceX, it will now not only find out the root cause, but fix it so that the corrosion never appears again, thus making its Dragon spacecraft even more reliable.

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Houston mission control loses contact with ISS for about 90 minutes

10:25 am

NASA’s mission control in Houston yesterday lost contact with ISS for about ninety minutes during work at the Johnson Space Center, an outage apparently caused or related to upgrade work being done there.

Back-up systems were activated but not used, while communications continued through Russia’s mission control in Moscow. Nor was anyone on the station ever in any danger, according to NASA officials.

The only concern with such an outage would be the many systems on the American half of ISS that are closely controlled and maintained by the ground. On the Russian half the goal has always been to build its station modules so they could run independent of ground operations.

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A third spaceport approved in Scotland

10:18 am

Despite some local opposition, a third spaceport has been approved in Scotland, allowing up to ten suborbital launches per year.

During launches, a 155m (250km) exclusion zone will be placed on the seas around St Kilda, the world-heritage site and archipelago north west of the site. It will be the third of its kind in Scotland, after spaceports were launched in Sutherland and Shetland.

The project, spearheaded by Comhairle nan Eilean Siar – Western Isles Council – has been met with opposition from locals with more than 1,000 people signing a petition rejecting the plans.

…Comhairle nan Eilean Siar had previously bought Scolpaig Farm for £1m and is developing it with private military contractor QinetiQ alongside space industry firms Rhea Group and Commercial Space Technologies.

It is unclear if the spaceport will eventually upgrade to providing orbital launch facilities. It will also have to compete with the two other spaceports in Scotland, as well as get launch approvals from the UK’s Civil Aviation Authority.

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Varda blocked from bringing its capsule back to Earth by FAA

9:49 am

Varda has been forced to delay the first return of its capsule from space, loaded with a drug designed to treat HIV/AIDS that can only be manufactured in weightlessness, because the FAA has so far refused to issue “a re-entry license,” a new regulatory power grab the FAA instituted two years ago supposedly to “streamline the launch and reentry licensing process.”

This new language, which I was unaware of and know of no Congressional act approving it, has done exactly the opposite.

A key issue, he said, is that Varda is the first to seek a reentry license under new FAA regulations known as Part 450. Those regulations were enacted by the FAA more than two years ago to streamline the launch and reentry licensing process.

…For the commercial launch industry, the Part 450 regulations have become an area of concern. Only a handful of Part 450 launch licenses have been issued to date as the FAA begins a transition to the new regulations, but those licenses have taken longer to complete than expected, in some cases missing a 180-day statutory deadline. Industry officials raised the issue at a July 13 hearing of the House Science Committee and at a July 11 meeting of an FAA advisory group, the Commercial Space Transportation Advisory Committee. [emphasis mine]

The highlighted language says it all. It also suggests these new regulations, apparently written by the FAA and not Congress, might be contributing to the delays being experienced by SpaceX in its attempt to do test launches of its Starship/Superheavy rocket.

Varda is presently hoping to return the capsule in mid-August. It had begun this re-entry licensing process in early 2021 — more than two years ago — and still does not have that approval. Its business plan is to make money by manufacturing things in weightlessness that can’t be made on Earth — such as this HIV drug — and returning those items to Earth for sale.

Such a plan can’t work if the federal administrative state stands in the way.

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Swirling layers in the basement of Mars

11:28 am

Swirling layers in the basement of Mars
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on March 31, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

In labeling this picture the science team focused on the many layers visible in these swirls, all suggesting a series of cyclical events, each laying down a new layer over many eons.

What caused the swirls? Looking at the lower right quadrant it appears that they were glacial, with the flow to the northwest but with each glacial layer smaller and not reaching as far.

This theory falls apart however at the curved depression, which instead suggests the swirl was traveling along a meandering canyon, going from the lower left to the upper right. If so, the curved depression is even more baffling. If ice it could have sublimated away, but its sharp edges suggest this isn’t ice but maybe a lava flow.
» Read more

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ESA: Ariane-6’s launch systems tests “progressing well”

9:30 am

According to a press release today from the European Space Agency (ESA), tests of the launch systems for its new Ariane-6 rocket are “progressing well”, though this particular test program was unable to finish its launch countdown rehearsal on July 18th with an actual static fire engine test of the rocket’s first stage engine.

The launch simulation included the removal of the mobile gantry, the chill-down of ground and launcher fluidic systems, the filling of the upper and core stage tanks with liquid hydrogen (–253°C) and liquid oxygen (–183°C), and at the end of the test, the successful completion of a launch chronology up to the ignition of the Vulcain 2.1 engine thrust chamber by the ground system.

During the 26-hour exercise, the teams successfully tested many degraded and contingency modes, demonstrating that the launcher and the launch base fit correctly. Operational procedures, lower and upper stages, avionics, software, launch base and control bench worked correctly together, and the performance of the full launch system was measured with excellent results.

The last part of the test – a short ignition of the Vulcain 2.1 engine – had to be postponed to the next test session as time ran out. The teams are now working towards continuing the exercise, in preparation for a long duration hot firing test later this summer. [emphasis mine]

The highlighted words imply a certain leisureliness on ESA’s part, an impression that might be wrong but it is the impression this language gives out. One wonders why the launch countdown could not have been completed to that static fire engine burst. “Time running out” seems a very lame reason, especially since ESA no longer has the Ariane-5 rocket and the Ariane-6 to replace it is years behind schedule.

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JPL employee admits he used COVID money fraudulently to grow pot

9:12 am

A JPL employee has pled guilty to lying on his applications for COVID loans in order to use the money “to pay off a real estate debt and fund his illegal cultivation of marijuana.”

Armen Hovanesian, 32, of Glendale, agreed to plead guilty to defrauding a government sponsored loan plan in 2020, admitting to using some of the fraudulently obtained cash to fund an illegal marijuana cultivation operation. Hovanesian works as a cost-control and budget-planning resource analyst for the JPL, which is a federally funded research lab for NASA, according to the United States Department of Justice.

From June 2020 to October 2020, Hovanesian submitted three loan applications to the Economic Injury Disaster Loan Program for businesses he operated. The program provided low-interest financing to small businesses, renters and homeowners affected by disasters, including the coronavirus pandemic. As part of his plea agreement, he admitted to making false and fraudulent statements when applying for the loans, including lying about each business’s revenue from the previous year, as well as making “false and fraudulent” statements regarding what he planned to do with the money if approved for the loans. [emphasis mine]

That this guy’s job at JPL was essentially a bean counter suggests this might help explain the center’s recent budget and management problems. It certainly indicates the quality of its management has declined.

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NASA awards 11 small development contracts to a variety of companies

9:01 am

Capitalism in space: NASA today announced that it has awarded small contracts to eleven different companies, ranging from big established companies like ULA and Lockheed Martin to small startups like Varda and Zeno, for developing a range of new technologies, from power production on the Moon to making building materials from lunar soil.

Five of the technologies will help humanity explore the Moon. For astronauts to spend extended periods of time on the lunar surface, they will need habitats, power, transportation, and other infrastructure. Two of the selected projects will use the Moon’s own surface material to create such infrastructure – a practice called in-situ resource utilization, or ISRU. Redwire will develop technologies that would allow use of lunar regolith to build infrastructure like roads, foundations for habitats, and landing pads.

Blue Origin’s technology could also make use of local resources by extracting elements from lunar regolith to produce solar cells and wire that could then be used to power work on the Moon.

Astrobotic’s selected proposal will advance technology to distribute power on the Moon’s surface, planned to be tested on a future lunar mission. The company’s CubeRover would unreel more than half a mile (one kilometer) of high-voltage power line that could be used to transfer power from a production system to a habitat or work area on the Moon.

The contracts range in price from $1.6 to $34.7 million, with Blue Origin getting that largest award.

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Rocket Lab delays its private mission to Venus two years to ’25

8:51 am

In order to focus at this time on its commercial customers, Rocket Lab has decided to reschedule its private mission to Venus, delaying its two years to the next launch window in 2025.

The mission appeared to still be on in May, before Rocket Lab quietly put it on the back-burner last month. Spokesperson Morgan Bailey said it had decided to delay the mission so it could concentrate on its commercial launches. “The decision was a business one and we look forward to delivering the Venus mission in 2025,” she said.

It also appears that the mission could be pushed back further if customer demand requires it.

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No, that is not a sunspot on Mars!

11:33 am

No, that is not a sunspot on Mars!
Click for original image.

Cool image time! The picture to the right, cropped to post here, was taken on April 20, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). While at first glance this Martian terrain vaguely resembles the granular surface of the Sun, with the largest depression having its own faint resemblance to a sunspot, the resemblance exists only in our feverish imagination.

The depression might have been formed by an impact, though it is also possible it is a caldera, not of lava but of ice processes. The granular surface is likely resulting from the sublimation of ice, creating random holes and ridges as underground material changes from ice to gas and escapes at weak points on the surface.

My guess that we are looking at ice processes is based on the location, not far from where the first manned spacecraft will likely land.
» Read more

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Spirals within spirals

8:58 am

Spirals within spirals
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and annotated to post here, was taken by the Hubble Space Telescope as part of two different research projects that are studying galaxies where supernovae previously occurred. This particular galaxy is estimated to be about 192 million light years away, and is a classic example of a barred spiral.

Despite appearing as an island of tranquillity in this image, UGC 12295 played host to a catastrophically violent explosion — a supernova — that was first detected in 2015. This supernova prompted two different teams of astronomers to propose Hubble observations of UGC 12295 that would sift through the wreckage of this vast stellar explosion.

Supernovae are the explosive deaths of massive stars, and are responsible for forging many of the elements found here on Earth. The first team of astronomers used Hubble’s Wide Field Camera 3 (WFC3) to examine the detritus left behind by the supernova in order to better understand the evolution of matter in our Universe.

The second team of astronomers also used WFC3 to explore the aftermath of UGC 12295’s supernova, but their investigation focused on returning to the sites of some of the best-studied nearby supernovae. Hubble’s keen vision can reveal lingering traces of these energetic events, shedding light on the nature of the systems that host supernovae.

What struck me about this picture however were the many smaller spiral galaxies scattered nearby and behind UGC 12295, with one face-on spiral highlighted near the top. I can count at least three or four other background spiral galaxies, all reddish in color likely because their light has been shifted to the red due to their distance.

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SpaceX launches another 22 Starlink satellites

6:01 pm

SpaceX today successfully launched another 22 second generation Starlink satellites, using its Falcon 9 rocket lifting off from Cape Canaveral.

The first stage completed its sixth flight, landing on a drone ship in the Atlantic. The two fairings completed their seventh and eighth flights respectively.

The leaders in the 2023 launch race:

49 SpaceX
29 China
9 Russia
6 Rocket Lab
5 India

American private enterprise now leads China in successful launches 56 to 29, and the entire world combined 56 to 48, with SpaceX by itself leading with the entire world combined (excluding other American companies) 49 to 48.

SpaceX’s 49 successful launches so far this year carries some additional historical significance. This number exceeds the launch count of the entire United States per year from 1968 to 2021, and SpaceX has done it in only a little more than half the year. Its reported goal of completing 100 launches this year remains very much within reach.

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China’s Long March 2D rocket places four satellites into orbit

9:52 am

China’s Long March 2D rocket today put four satellites into orbit, three to provide “remote sensing observation data and provide commercial remote sensing services,” and one “satellite communications technology verification.”

That’s everything China’s state run press tells us. The launch was also from China’s Taiyuan interior spaceport, which means the rocket’s lower stages crashed somewhere in China. No word on whether they attempted to control the landing, or if it crashed near habitable areas.

The leaders in the 2023 launch race:

48 SpaceX (with a launch planned later today. Live stream here.)
29 China
9 Russia
6 Rocket Lab
5 India

American private enterprise still leads China in successful launches 55 to 29, and the entire world combined 55 to 48, with SpaceX by itself tied with the entire world combined (excluding other American companies) 48 to 48.

The SpaceX launch later today was originally scheduled for yesterday, but got scrubbed due to weather.

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Indian company Skyroot conducts rocket engine test

11:24 am

Capitalism in space: The Indian rocket startup Skyroot successfully conducted a ten-second static fire test of a new engine, using a test facility of India’s space agency ISRO.

The Modi government has established a policy that ISRO must provide its facilities for private companies to develop their rockets, and this test was another demonstration that this policy is taking hold. It also indicates that Skyroot is getting closer to launching its first orbital rocket, Vikram-1.

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China launches two smallsats

11:17 am

A Chinese pseudo-company dubbed Galactic Energy today placed two smallsats into orbit, using its solid-fueled Ceres-1 rocket that lifted off from China’s Jiuquan interior spaceport.

This pseudo-company might have gotten investment capital and operate like a private company, but its technology — solid rockets — is utterly derived from missiles, and thus it has done nothing without full control by China’s government. Like all of China’s pseudo-companies, it owns nothing that it sells.

Meanwhile, the rocket’s lower stages crashed somewhere in the interior of China. No word if they landed near habitable areas.

The leaders in the 2023 launch race:

48 SpaceX (with a launch planned later today. Live stream here.)
28 China
9 Russia
6 Rocket Lab
5 India

American private enterprise still leads China in successful launches 55 to 28, and the entire world combined 55 to 47, with SpaceX by itself leading the entire world combined (excluding other American companies) 48 to 47.

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Strings of Martian cones

10:10 am

Strings of Martian cones

Cool image time! The picture to the right, cropped and reduced to post here, was taken on May 25, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The scientists describe these cones as “longitudinally aligned cones,” but this is puzzling since the alignment runs from the northwest to the south east, not north-south along the longitude.

No matter. The alignment is in itself the mystery, especially because the full image shows many more strings of cones in this area, all running from the northwest to the southeast. The strings also are all curved in the same way, sagging to the southwest as if expressing a wave flowing in that direction.

What could create these strings of cones? The overview map below gives us a hint.
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Chandrayaan-3 completes fourth engine burn in Earth orbit

9:04 am

Chandrayaan-3's mission profile

According to India’s space agency ISRO, engineers have successfully completed the fourth of about six engine burns designed to raise Chandrayaan-3’s Earth orbit in preparation for sending it on its path to the Moon.

As shown in the graphic to the right, these adjustments are relatively small, but each increases the speed of the spacecraft at its orbit’s closest point to the Earth. That extra velocity thus reduces the amount of fuel needed for that trans-lunar-injection burn.

If all the maneuvers continue to go as planned, the landing attempt will occur around August 23, 2023.

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