Month: March 2024

Australian spaceport on sourthern coast prepares for launch

11:06 am

Australian commercial spaceports
Click for original map.

According to a report today, the first suborbital launch from a new commercial spaceport on the sourthern coast of Australia is now expected by the end of April or early May.

New launch facilities at the Koonibba Test Range, South Australia’s first permanent spaceport, are almost complete ahead of the impending inaugural launch. Located northwest of Ceduna, the range is a partnership between Southern Launch and the Koonibba Community Aboriginal Corporation. It is the largest commercial testing range in the Southern Hemisphere.

Space Industries Minister Susan Close is today visiting the site ahead of the sub-orbital test launch of German manufacturer HyImpulse’s SR75 rocket, which, subject to final regulatory approval, will go ahead at the end of April or early May. The rocket will reach an altitude of 50 kilometres before parachuting back to Earth where it will be recovered for testing.

Southern Launch, marked on the map to the right, is on south coast of Australia. Two other Australian commercial spaceports also under development are noted on the northern and eastern coasts.

We shall see if this suborbital launch occurs as planned. Recently the evidence has suggested that Australia’s regulatory state is as bad as the United Kingdom, taking forever to issue licenses for private launches.

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Russia launches Earth observation satellite

10:12 am

Russia early this morning successfully launched a new Earth observation satellite, its Soyuz-2 rocket lifting off from its Baikonus spaceport in Kazakhstan.

The side boosters, core stage, second stage, and fairings all crashed in two planned drop zones within Russia. No word if any landed near habitable areas.

The leaders in the 2024 space race:

32 SpaceX
13 China
5 Russia
4 Rocket Lab

American private enterprise still leads the entire world combined in successful launches 37 to 24, and SpaceX by itself remains ahead everyone one else combined 32 to 29.

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SpaceX completes two launches in three and a half hours; third launch scrubbed

10:50 pm

And the beat goes on: Today SpaceX set a new marker for future launch companies, successfully launching twice from two different launchpads in Florida only three and a half hours apart, and then scrubbing a third launch due to weather on the opposite coast of the U.S. only a few hours after that.

First SpaceX launched a Eutelsat geosynchronous communications satellite, its Falcon 9 rocket lifting off from Cape Canaveral at 5:52 pm (Eastern). Its first stage completed its twelth flight, landing on a drone ship in the Atlantic.

A little more than three and a half hours later, at 9:30 pm (Eastern), SpaceX launched 23 Starlink satellites, its Falcon 9 rocket lifting off from its second launchpad at Cape Canaveral. The first stage completed its eighteenth flight, landing on a drone ship in the Atlantic.

Finally, the third launch planned for the day, of another 22 Starlink satelites, was scrubbed at Vandenberg in California at about 10:30 pm (Pacific), or 1:30 am (Eastern) due to weather, despite multiple launch attempts during its two hour launch window. The flight will likely be rescheduled for sometime in the next few days.

No private company has ever attempted such a thing before, and only the Soviet Union might have done it during the height of its launch industry from 1970 to 1988, when it routinely launched between 80 and 100 times per year. Whether it ever did three launches in under nine hours however is not likely.

Even though only two of the three launches took off, what SpaceX tried to do today provides a further illustration of the company’s effort to make rocket launches as routine as airplane travel. It now launches at a pace and reliability that is unprecedented since the dawn of the space age, and was for decades considered by experts impossible. So much for experts. It always pays to ignore them when they tell you something is impossible.

The leaders in the 2024 space race:

32 SpaceX
13 China
4 Rocket Lab
4 Russia

American private enterprise now leads the entire world combined in successful launches 37 to 23, and SpaceX by itself leads everyone one else combined 32 to 28.

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Varda releases results of its in-orbit test for producing pharmaceuticals in weightlessness

9:48 pm

On March 20, 2024 Varda released the results from its seven-month-long flight of its unmanned capsule, claiming that the technology worked to produce pharmaceuticals in weightlessness that will be better at treating some difficult illnesses such as HIV.

From the abstract of the preprint paper [pdf]:

Despite notable progress in realizing the benefits of microgravity, the physical stability of therapeutics processed in space has not been sufficiently investigated. Environmental factors including vibration, acceleration, radiation, and temperature, if not addressed could impact the feasibility of in-space drug processing. The presented work demonstrates the successful recovery of the metastable Form III of ritonavir generated in orbit. The test samples and passive controls containing each of the anhydrous forms of ritonavir; Form I, Form II, Form III, and amorphous exhibit excellent stability. By providing a detailed experimental dataset centered on survivability, we pave the way for the future of in-space processing of medicines that enable the development of novel drug products on Earth and benefit long-duration human exploration initiatives.

More research is likely required, but I suspect Varda will be able to raise investment capital from this success, since there is a lot of money to be made from pharmaceuticals that can only be produced in weightlessness.

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March 29, 2024 Quick space links

3:25 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

 

 

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Arizona city shuts down church program that fed the hungry for the last 25 years

2:43 pm

Nieves Riedel, mayor of San Luis, Arizona
Nieves Riedel, mayor of San Luis, Arizona, and
very hostile to churches feeding the hungry

They’re coming for you next: In 2022 a new mayor and administration arrived in San Luis, Arizona, and immediately thereafter the food program of Gethsemani Baptist Church in San Luis, Arizona, came under harassment, with repeated citations and bureaucratic demands that it limit its operations, to a point that the threatened fines (more than $4,000) and potential jail terms for its pastor forced the church stop the program, despite operating peaceably and acceptably for a quarter of a century.

After new officials took over in San Luis, the city sent a letter last fall ordering the church to stop using semi-trucks for food delivery at its property. Attempting to resolve the order, the church offered to use smaller trucks. The city denied the request and told the church it must stop the food ministry entirely. These limitations make it functionally impossible to carry out the ministry in the same way.

Since receiving the city’s letter, Pastor Jose [Castro] had to significantly cut back on the food ministry. He’s tried to continue feeding the hungry as best he can under these limitations. But this wasn’t enough for the city of San Luis and its new Mayor, Nieves Riedel. Just a few weeks ago, while Pastor Jose passed out emergency food supplies to a small group of people at the church, a city code enforcer showed up unannounced and issued him four citations. Less than a week later, when a third party parked a truck in front of the church for just five minutes, the code enforcer returned and issued Pastor Jose four more citations. Not only will Pastor Jose have to pay fines in municipal court, each future violation may result in criminal charges.

These aggressive tactics have now forced Gethsemani to pause its ministry, as the church and Pastor Jose cannot afford the heavy fines or to relocate. Because of the City and Mayor Riedel’s intimidation tactics, the church cannot feed the hungry. That means people are going hungry right now.

» Read more

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The Martian view from high on Mount Sharp

11:47 am

The Martian view of mountains
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was downloaded today from left navigation camera on the Mars rover Curiosity.

The image looks to the north from the lower foothills of Mount Sharp. The view is downhill across the floor of Gale Crater. The intermittent dotted red line that weaves between those foothills marks the approximate route that Curiosity took to climb through them to reach this point.

About 20 to 25 miles away the mountainous rim of the crater can be seen dimly. The air is filled with dust, because its is almost the peak of the dust season at Gale Crater, located just south of the Martian equator.

The overview map below provides some further context.
» Read more

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China working to save classifed lunar mission from launch failure

9:40 am

Orbital data now suggests that Chinese engineers are attempting to save a classifed lunar mission from the failure of its launch rocket to put the two satellites in their proper high orbit.

The small DRO-A and B spacecraft launched from Xichang spaceport on a Long March 2C rocket March 13. Hours later, the first acknowledgement of the mission came from Chinese state media Xinhua, which announced that the spacecraft had not been inserted accurately into their designated orbit by the rocket’s Yuanzheng-1S upper stage. “The upper stage encountered an abnormality during flight, causing the satellites to fail to accurately enter the preset orbit,” Xinhua stated. “Relevant disposal work is currently underway,” it added, citing Xichang launch center.

Data from the U.S. Space Force’s 18th Space Defense Squadron (SDS) initially showed objects associated with the launch in low Earth orbit (LEO). However, subsequent Two Line Element (TLE) data sets, a mathematical representation of a satellite’s mean orbit, from 18 SDS show an object from the launch (international designator 2024-048A) in a 525 x 132,577-kilometer, highly-elliptical, high Earth orbit. This has since been raised, with the spacecraft tracked in a 971 x 225,193-km orbit on March 26.

This indicates that at least one satellite, and perhaps both—if still attached to one another—separated from the upper stage, and that the object’s orbit has been raised.

It is very possible that further engine burns could put these satellites into lunar orbit, which would then save the mission and turn the March 13 launch failure into a success.

Why China is keeping this particular lunar mission so secret is another question, that still remains unanswered.

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Ispace, which built the lunar lander Hakuto-R1, has raised $53 million in investment capital

9:33 am

The lunar lander company Ispace, which built Hakuto-R1, the lunar lander that crashed on the Moon last year, announced yesterday that it has raised $53 million in investment capital from a sale of its publicly traded stock.

The Tokyo-based company, which went public on the Tokyo Stock Exchange nearly a year ago, announced March 28 that it completed a sale of 10.25 million shares of stock, raising approximately 8.1 billion yen ($53.5 million). The shares were sold to institutional investors outside of Japan.

Most of the funding — about 7.1 billion yen — will go towards various elements of what the company calls Mission 3, a lander being developed by its American subsidiary, ispace U.S., for Draper. That APEX 1.0 lander will fly a mission in 2026 for NASA’s Commercial Lunar Payload Services (CLPS) program, going to the far side of the moon.

Before APEX flies the company has a second Hakuto-R-type mission planned, dubbed Resilience and targeting a launch late this year.

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Head of France’s space agency blames too many subcontractors for high cost of Ariane-6

9:26 am

At a conference yesterday the head of France’s CNES space agency, Philippe Baptiste, strongly blasted the European Space Agency’s (ESA) system of distributing contracting work to many subcontractors in its partner countries for high cost of its new expendable Ariane-6, a high cost that makes it uncompetitive in today’s launch market.

While giving his remarks, the CNES boss explained that “the European space industry, which is largely French, is in danger today. Our industry is not pivoting quickly enough. We must move quickly, reduce cycles, costs, otherwise we will all die.” It should be noted that the hyperbole towards the end of that statement may be exaggerated thanks to its translation from French to English.

On Ariane 6, Baptiste stated that “today, we are too expensive, including on Ariane 6. We are missing several tens of millions of euros, which we cannot find among European subcontractors.”

As the article then notes, this is not a new problem. ESA attempted to reduce it when it agreed in 2017 to give ownership of Ariane-6 to ArianeGroup, a joint partnership of Airbus and Safran, two of Europe’s biggest aerospace companies. The idea was that ArianeGroup would be in charge, and thus less bound to give out multiple subcontracts to many different companies scattered throughout ESA’s European partners.

This apparently did not happen, and the reason is likely because Ariane-6 was still a rocket conceived by the ESA to be run by the ESA, not a private company. That government control is also the reason Ariane-6 was designed not be reusable, even though in 2017 it was very obvious that an expendable rocket would be uncompetitive in the 2020s launch market. The bureaucrats at ESA didn’t want to take chances, so they choose a conservative design.

Baptiste’s remarks today I think help explain France’s decision earlier this week to award contracts to four rocket startups. France has finally realized that its partnership in ESA has been hindering its own space industry, and is now moving to encourage its growth outside of ESA.

There is great irony here. France led the way in creating ESA, because it wanted others to help pay for its space program. Now it rejects that partnership because its partners are simply doing what is natural, demand their own piece of the action.

Regardless, this breakup is good news. It means the European government monopoly on launch services is truly ending.

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March 28, 2024 Quick space links

3:15 pm

Courtesy of BtB’s stringer Jay, who also tipped me off to the China and Japan stories immediately below. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

 

 

 

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Leftist students take-over building illegally and by force at Vanderbilt

2:38 pm

Leftist protesters break into Vanderbilt building
Anti-Israel protesters assault a security guard (grey jacket)
at Vanderbuilt. Click for full video.

The lawless left: Because Vanderbilt University officials canceled a vote on a student amendment to the student government constitution, on March 25, 2024 about thirty students broke into the chancellor’s office, assaulting a security guard as they did so, and occupied it about 22 hours before police forced them out.

The university canceled the amendment vote because it would require the boycott of any businesses linked with Israel, and thus would likely violate federal and state laws and would make the university “ineligible for new state contracts and could have existing contracts voided.”

Whether or not the cancellation was right, the violence of the students is typical of the spoiled-child tantrums of the left, that assume it has the right to do anything at all, including violence and trespass, if it doesn’t get what it wants.

In a statement, the Vanderbilt spokesperson said the protest was “not a peaceful one.”
» Read more

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Japan awards development agreements with four rocket startups

1:14 pm

Capitalism in space: Japan’s space agency this week awarded development agreements to four Japanese rocket startups, signaling that nation’s attempt to shift from depending on JAXA’s government-built rockets to becoming a customer of an industry of competing commercial rocket companies.

Japan Aerospace Exploration Agency (JAXA) and Interstellar signed a basic agreement in March. Space One, whose Kairos solid rocket exploded seconds after liftoff earlier this month, was also selected under the JAXA-SMASH (JAXA-Small Satellite Rush Program) initiative. Two further companies also signed basic agreements. These are Space BD and Mitsui Bussan Aerospace, which offer services aimed at the commercial utilization of space.

The agreements mean the companies will have priority for future contracts. These are designed to support private-sector entities capable of launching satellites developed under JAXA’s small satellite missions and advance the commercialization of space transportation services.

These deals are part of a new policy announced in November that includes $6.6 billion to help encourage the growth of a Japanese commercial space sector, independent of that nation’s space agency.

It remains uncertain whether JAXA will let go the purse strings and actually allow these new companies ownership of what they do. The deals as described sound like the agency is using its power to attempt to capture the companies, rather than encourage their independent growth.

We shall have to wait and see. On its face this announcement is very good news for Japan’s space industry, as it suggests that things might be changing.

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A detailed look at the international partners for China’s Moon base

1:03 pm

Link here. The article provides a nice summary of who has signed on to China’s project to build a Moon base in competition with the American Artemis project, prompted by the announcement that an astronomical association in Colombia has now signed on.

The contrast is stark between the nations that have signed the Artemis Accords to participate in the American project (36 so far) and the entities that have partnered with the Chinese. China at present only has seven partner nations (Belarus, Pakistan, Azerbaijan, Russia, Venezuela, South Africa, Egypt), only one of which, Russia, has any space capabilities. The remaining nine partners are all academic organizations of one kind or another, all of which also have little or no major space capabilities.

Essentially, these partners are mostly PR by China to make it appear it has an international team. In reality almost all of its lunar project will be done by China. China doesn’t even expect Russia to contribute that much. As the article notes, “China has regularly omitted any mention of Russia as an ILRS partner” since the Russia invaded the Ukraine in February 2022. Before then Russia’s ability to accomplish much of anything new in space had long been questionable, and since then the doubts have escalated.

Though many of the nations who have signed the Artemis Accords are as weak, the list also includes almost all the world’s major players in space, such as France, Germany, India, Japan, and Luxembourg.

Like the Cold War, the western capitalist alliance is larger and more capable, because no one really wants to join an partnership that discourages freedom and private enterprise.

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Martian waves of ridges and cracks

12:42 pm

Martian waves of ridges and cracks
Click for original image.

In preparing today’s cool image I initially planned to post an picture taken on December 26, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), as it showed a strange series of ridges that almost resembled waves or ripples on a pond.

In digging into MRO’s context camera archive to get the larger context, however, I immediately switched to the photo on the right, cropped, reduced, and sharpened to post here. Taken on December 17, 2010, it shows a much more mysterious and striking set of geological features than the closer view of the high resolution image, with the wave-shaped ridges on its western half but another set of wave-shaped cracks on its eastern half.

Even more intriguing, the arcs for the ridges curve in the opposite direction from the arcs for the cracks. It is almost as if there were two flows moving in opposite directions, right next to each other.
» Read more

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The remnant of the supernova from 1181, as seen in multiple wavelengths

9:44 am

Supernova remnant as seen in multiple wavelengths
Click for original image.

Using a number of different telescopes and observing in many wavelengths outside the visible spectrum, astronomers have produced a new composite image of the remnant of a supernova that was detected in the year 1181 and remained visible to the naked eye for about six months.

That composite picture is to the right, cropped and reduced to post here. From the press release:

X-ray observations by ESA’s XMM-Newton (blue) show the full extent of the nebula and NASA’s Chandra X-ray Observatory (cyan) pinpoints its central source. The nebula is barely visible in optical light but shines bright in infrared light, collected by NASA’s Wide-field Infrared Space Explorer (red and pink). Interestingly, the radial structure in the image consists of heated sulfur that glows in visible light, observed with the ground-based Hiltner 2.4 m telescope at the MDM Observatory (green) in Arizona, USA, as do the stars in the background by Pan-STARRS (white) in Hawaii, USA.

Because the remnant is so dim in visible light, it has taken years of searching to locate it.

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SLIM survives its second lunar night, re-establishes contact

9:33 am

SLIM's view after surviving its 2nd night on the Moon
Click for original image.

According to Japan’s space agency JAXA, the SLIM lunar lander has successfully survived its long night on the Moon, re-establishiing contact with ground controllers yesterday.

Last night, we received a response from #SLIM, confirming that the spacecraft made it through the lunar night for the second time! Since the sun was still high and the equipment was still hot, we only took some shots of the usual scenery with the navigation camera

One of those pictures is to the right, reduced slightly to post here. It looks west across the floor of Shioli Crater, with the far rim about a thousand feet away. The picture is identical to previous images, tilted because the spacecraft landed on its side and has limited scientific capabilities, being primarily an engineering test mission.

That this engineering test has now survived two lunar nights speaks well for its design. It tells us that future Japanese lunar landers (and rovers) will have a good chance of surviving for a long time on the Moon.

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Real Space – Every Space Station Size Comparison

6:01 pm

An evening pause: Some quick visual space station history. Note how almost all the non-U.S. stations are essentially assembled using revisions of the same early Soviet-era modules. Note too how the future private stations are all very different from each other. The contrast illustrates the difference between what you get when governments control everything, and when competition and freedom rule.

Hat tip Edward Thelen.

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March 27, 2024 Quick space links

4:07 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

 

 

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Part 3: The expected tantrum of madness should Biden actually lose the election

1:48 pm

The Democratic Party: hostile to freedom and fair elections

For the past two days I have tried to lay out some of the illegal and immoral strategies and tactics of the Democratic Party in its relentless effort to guarantee a win in this year’s presidential election, no matter what. (For the first two parts, go here and here.)

The bottom line is that Democratic Party politicians and their allies in the press and big tech will stop at nothing to prevent Donald Trump from regaining the White House. They will cheat, lie, encourage riots and looting, censor and blacklist their opponents, and in the end, even commit election and voter fraud on a massive scale.

But despite all this, what if Donald Trump still ends up victorious? Right now a rational look at both the polling trends and the disastrous consequences of Joe Biden’s presidency all suggest the American public is screaming for a change. The historic shift in the black and hispanic populations to Trump and away from the Democratic Party underlines these trends quite clearly. These trends are further underlined by the presence of two different moderate-left alternative presidential tickets, both drawing the bulk of their support from the Democrats.

In the end, this data tells us that it is very likely that none of the chaos and violence and fear-mongering and vote tampering by the Democrats will work, that in the end Donald Trump will emerge as the winner.

How will this now very close-minded and very vicious Democratic Party respond when that happens? The signs tell us that they can no longer tolerate defeat, or even the existence of alternative parties. (For example, consider the relentless effort by the Democrats to legally squelch these alternative parties from the ballot box.) For them, “democracy” only exists when they win.

We should therefore expect these terrible things to happen in short order after election day.
» Read more

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Scientists release detailed geological map of the landing site for Europe’s Franklin rover

10:01 am

Low resolution cropped section of map
Click for original image.

Scientists today released a new high resolution and very detailed geological map of the landing site for Europe’s Franklin rover, produced using orbital data from the U.S.’S Mars Reconnaissance Orbiter and Europe’s Trace Gas Orbiter.

A very low resolution version of the map is to the right.

The work was divided into 134 one-square-kilometre areas, so that the [80-person] team could fully cover the estimated landing area. Scientists used a web-based system that allowed everyone to work on the map in parallel. The software was provided by NASA’s Jet Propulsion Laboratory and set up at ESA [European Space Agency]. Data came from the Colour and Stereo Surface Imaging System (CaSSIS) onboard the ExoMars Trace Gas Orbiter and several instruments on NASA’s Mars Reconnaissance Orbiter (MRO), including the HiRISE camera, which returns images from Mars orbit at 25 cm per pixel.

The mapping leads then pieced together the information on all the areas to form a coherent map that shows the geology of the landing site in unprecedented detail. The map includes the main types of bedrock, and structures with distinct shapes like ridges and craters. It even features the material that rests on top, for example blown by the wind, or thrown long distances when meteorites impacted the surface.

The result is the highest resolution map of Oxia Planum yet, created at a scale of 1:25 000, by which every centimetre equals 250 metres on the martian surface. An average drive of 25 to 50 metres a day for Rosalind Franklin would be one to two milimetres on the map.

The team had the extra time to compile this map because the launch of Franklin to Mars was delayed a number of times because of engineering issues and the Ukraine War, which ended the Europe’s partnership with Russia, requiring ESA to find other means to launch and land the rover.

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Data from Perseverance suggests the delta in Jezero Crater was formed by a wide variety of different “fluvial” events

9:43 am

Jezero Crater delta
Jezero Crater delta

Using data from the Perseverance rover in Jezero crater, scientists now conclude that the delta that poured through a gap in the crater’s rim was formed by a wide variety of different “fluvial” events, not a steady flow as previously assumed.

From the paper’s conclusions:

The origin of this variability as well as that of the high discharge represented by the boulder conglomerate is still unknown. Realistic hypotheses include seasonal variations due to melting of snow, glacial input with possible episodic surges punctuating more regular fluvial input, or arid climate type of flows with intense storms and related flash floods.

We do not speculate further about the nature of fluvial activity in this study. However, the variability and the presence of high discharge rates have important implications on the lake evolution. Firstly, previous modeling of Jezero delta formation used steady-state discharge rates to estimate the time required to form the delta, an assumption that we can no longer justify according to our observations. Secondly, estimates of discharge rates … may be used as upper limits for some of the peak discharge rates, although the number of flood events is still difficult to determine from the sparse outcrops and the ubiquitous presence of scree.

In other words, the delta was not formed by a single event or a long stream of liquid flowing into the crater to form the lake that scientists believe once filled the crater. Instead, that flow varied, involved numerous distinct and different events over time, and likely included glacial ice transport as well.

Not that this is a surprise, but as always, the closer we get to a planet and the more detailed our data about it, the more complicated we find its nature and origins.

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Members of Texas Space Commission unveiled

9:27 am

The governor of Texas, Greg Abbott, yesterday revealed the names of the 18 individuals who will head the Texas Space Commission, created by the legislature to encourage the development of that state’s commercial space industry.

The Texas Space Commission will be tasked with developing a statewide strategy that promotes innovation, creates incentives (including grant funding) and develops workforce training. They initially have $350 million to work with, $150 million budgeted for grants and $200 million for a new research and training facility built by the Texas A&M University System.

The Texas Aerospace Research and Space Economy Consortium, which is part of the Texas Space Commission, will identify research and development opportunities and find ways to further integrate space into the Texas economy.

The commission appears strongly made up of representatives from many commercial companies, including the big companies SpaceX, Lockheed Martin, and Boeing as well as a number of newer smaller companies. Linked as it is so closely with the state government, this commission will be well placed to eliminate any obstacles within the state to commercial development.

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The spiraling magnetic field surrounding the Milky Way’s central supermassive black hole

9:19 am

The magnetic field lines surrounding Sagittarius A*
Click for original image.

Astronomers have now produced the first detailed image of polarized light surrounding the Milky Way’s central supermassive black hole, dubbed Sagittarius A* (pronounced “Sagittarius A-star”) which in turn maps out the spiraling field lines of that black hole’s magnetic field.

The image to the right, reduced to post here, shows that image. From the press release:

“What we’re seeing now is that there are strong, twisted, and organized magnetic fields near the black hole at the center of the Milky Way galaxy,” said Sara Issaoun, CfA NASA Hubble Fellowship Program Einstein Fellow, Smithsonian Astrophysical Observatory (SAO) astrophysicist, and co-lead of the project. “Along with Sgr A* having a strikingly similar polarization structure to that seen in the much larger and more powerful M87* black hole, we’ve learned that strong and ordered magnetic fields are critical to how black holes interact with the gas and matter around them.”

Light is an oscillating, or moving, electromagnetic wave that allows us to see objects. Sometimes, light oscillates in a preferred orientation, and we call it “polarized.” Although polarized light surrounds us, to human eyes it is indistinguishable from “normal” light. In the plasma around these black holes, particles whirling around magnetic field lines impart a polarization pattern perpendicular to the field. This allows astronomers to see in increasingly vivid detail what’s happening in black hole regions and map their magnetic field lines.

Despite this similarlity, it still remains a mystery why the much larger M87 black hole is very active while Sagittarius A’ remains generally quiet.

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Engineers resolve issue on IXPE space telescope

9:01 am

Engineers have resolved the issue on the IXPE (Imaging X-ray Polarimetry Explorer) space telescope that was jumbling the data it was sending to Earth, and expect to return it to full science operations shortly.

On March 26, using procedures developed following that previous interruption, the team initiated a spacecraft avionics reset to address the issue, which put IXPE into a planned safe mode. The team has confirmed that IXPE is once again transmitting valid telemetry data and is now working to resume science operations, in as rapid and safe a manner as possible. The spacecraft is in good health.

The “previous interruption” was in 2023. In both cases it appears that simply rebooting the telescope’s software fixed the problem.

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China’s Long March 6 rocket launches remote sensing satellite

8:51 am

China yesterday successfully launched a classified remote sensing satellite, its Long March 6 rocket lifting off from its Taiyuan spaceport in the northeast of China.

No word on where the rocket’s four solid-fueled strap-on boosters and liquid-fueld core stage crashed inside China.

The leaders in the 2024 launch race:

30 SpaceX
13 China
4 Rocket Lab
4 Russia

American private enterprise still leads the rest of the world combined in successful launches 35 to 23, while SpaceX still leads the entire world, including American companies, 30 to 28.

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