OSIRIS-APEX survives closest fly-by of the Sun on its way to the asteroid Apophis

9:27 am

The asteroid probe OSIRIS-APEX has successfully survived a much closer fly-by of the Sun then it was ever designed to endure, paving the way for its rendezvous with the potentially-dangerous asteroid Apophis in 2029.

The spacecraft’s clean bill of health was due to creative engineering. Engineers placed OSIRIS-APEX in a fixed orientation with respect to the Sun and repositioned one of its two solar arrays to shade the spacecraft’s most sensitive components during the pass.

The spacecraft is in an elliptical orbit around the Sun that brings it to a point closest to the Sun, called a perihelion, about every nine months. To get on a path that will allow it to meet up with its new target Apophis in 2029, the spacecraft’s trajectory includes several perihelions that are closer to the Sun than the spacecraft’s components were originally designed to withstand.

It appears this first fly-by actually improved the spacecraft’s condition. The maneuvers appear to have dislodged a pebble — picked up during the sample grab at the asteroid Bennu — that was interfering with the spacecraft’s spectrometer. The heat from the Sun also apparently fixed about 70% of the hot pixels on one of the spacecraft’s cameras.

“We think the heat from the Sun reset the pixels through annealing,” said Amy Simon, OSIRIS-APEX project scientist, based at NASA Goddard. Annealing is a heat process that can restore function of instruments and is often done intentionally through built-in heaters on some spacecraft.

The next solar fly-by will occur on September 1, 2024.

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SLIM goes dark

9:14 am

SLIM's landing zone
Map showing SLIM landing zone on the Moon.
Click for interactive map.

The Japanese lunar lander SLIM has failed to respond to ground commands sent soon after dawn, ending the lander’s fourth night on the Moon.

SLIM was never expected to survive the harsh conditions of even a single 14-day-long lunar night after landing on the Moon in January 2024. Its primary mission had been to test precision autonomous landings, which it did successfully (though it landed on its side when one nozzle fell off just before touchdown). Yet, it then survived three lunar nights, resuming communications at dawn.

Its failure now is therefore no surprise, and actually marks a magnificent engineering success. The spacecraft’s hardware was proven robust enough to survive the very cold temperatures during lunar night, and suggests that future Japanese lunar landers using SLIM designs will function as well.

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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

Avio completes static fire test of the upper stage of its grounded Vega-C rocket

9:03 am

The Italian company Avio yesterday completed a full static fire test of the solid-fueled upper stage of its grounded Vega-C rocket, proving that the second redesign of its nozzle now works.

The initial post-test review indicates that the new nozzle assembly performed as expected throughout the scheduled 94 seconds burning time of the test, simulating a nominal in-flight performance.

The Zefiro-40 is a 7.6 m tall rocket motor, loaded with over 36 tonnes of solid propellant. For this test the motor was installed on its horizontal test bench. Zefiro-40 is developed and manufactured by Avio in their Colleferro factory near Rome, Italy.

A second firing-test will be conducted after the summer to confirm the data collected today. Avio engineers will review the data from the first test to prepare for a second test in October that will then qualify the second stage Zefiro-40 solid rocket motor for a return-to-flight by end 2024 from Europe’s Spaceport in French Guiana.

The nozzle — originally built in the Ukraine — had failed during a launch in December 2022. Then Avio’s first redesign failed in a ground test in July 2023.

With this launch, the Vega-C is poised to resume operations by the end of the year. Those operations will be different however in one major respect. While previously the rocket was built by Avio but owned and controlled by the European Space Agency’s commercial arm, Arianespace, its ownership has been transferred back to Avio. Arianespace is now merely a “launch service provider” according to the press release. I suspect this means that Arianespace handles the launch in French Guiana, something that will also soon be taken from it because control of that spaceport is also being returned to the French space agency CNES.

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China launches four satellites from sea platform

8:45 am

China's spaceports

The Chinese pseudo-company Galactic Energy today launched four satellites, its Ceres-1 rocket lifting off from its sea platform stationed off the coast of Shandong province, as shown on the map to the right.

As is usual now for China’s state-run press, the news report made no mention of the company, though unlike previous reports it did mention that the rocket was “commercial.” Since it does nothing without the full permission of the Chinese government, however, this is not a real independent company, with full ownership of its rocket. At any time the communists who run China can grab it for their own uses.

The leaders in the 2024 launch race:

57 SpaceX
24 China
7 Russia
6 Rocket Lab

American private enterprise still leads the world combined in successful launches, 65 to 37, while SpaceX by itself leads the entire world, including other American companies, 57 to 45.

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Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

SpaceX launches European/Japanese climate satellite

11:44 pm

SpaceX today successfully launched a joint European/Japanese satellite designed to study the climate, its Falcon 9 rocket lifting off from Vandenberg in California.

The first stage completed its seventh flight, landing safely back at Vandenberg. This was also SpaceX’s second launch today, from opposite coasts.

The leaders in the 2024 launch race:

57 SpaceX
23 China
7 Russia
6 Rocket Lab

American private enterprise now leads the world combined in successful launches, 65 to 36, while SpaceX by itself leads the entire world, including other American companies, 57 to 44.

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Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

A Martian lava flow so strong it eats mountains

1:34 pm

A Martian lava flow so strong it eats mountains
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, sharpened, and annotated to post here, was taken on March 19, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a crater that appears to sit on top of a plateau that was created by a flow of material coming from the northeast that — as the flow divided to get around that crater — it wore away the ground to leave the crater sitting high and dry.

What was the material in that flow? The location is at 9 degrees north latitude, in Mars’ dry tropics, so it is highly unlikely that the flows here are glaciers, even though they have some glacier-like features.

Instead, this is frozen lava, but Martian in nature in that its ability to push the ground out of its way suggests it was moving very fast, far faster than lava on Earth.
» Read more

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Need a kidney transplant? You better be poor according to new DEI proposed rules

12:39 pm

The Biden administration: still dedicated to segregation!
The Biden administration: still dedicated to segregation!

“Segregation today, segregation tomorrow, segregation forever!” According to new rules proposed by the Biden administration “to root our racial bias,” a pilot program will favor low-income patients in providing them kidney transplants.

The proposal, which Becerra’s agency announced on May 8, would place 90 of the nation’s 257 transplant hospitals into a pilot program that uses an annual point system to grade participants. Under the system, a successful kidney transplant counts as one point. A transplant furnished to a low-income patient, however, counts as 1.2 points thanks to a “health equity performance adjustment,” thus incentivizing the hospitals to prioritize such patients. At the end of each year, those points are applied to a transplant quota. Hospitals that meet their quota receive as much as $8,000 per transplant; those that don’t may have to pay up to $2,000 per transplant.

While the proposal uses income to categorize patients rather than race, Becerra made clear that the scoring system is meant to address racial concerns. In his statement announcing the proposal, he touted the Biden administration’s “concrete steps to remove racial bias … in the transplant process.”

» Read more

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Chinese pseudo-company files plans for 10,000 satellite constellation

9:39 am

A Chinese pseudo-company has now filed plans for launching a 10,000 satellite constellation, the third such Chinese constellation planned.

A Chinese firm linked to commercial rocket maker Landspace has filed a notification with the ITU for a constellation comprising 10,000 satellites. Shanghai Lanjian Hongqing Technology Company, also known as Hongqing Technology, filed an Advance Publication Information (API) with the International Telecommunication Union (ITU) May 24. The filing outlines plans for a constellation named Honghu-3. It is to total 10,000 satellites across 160 orbital planes.

…The Honghu constellation plan appears to be the third 10,000-plus satellite megaconstellation planned by Chinese entities. It follows the national Guowang plan and the Shanghai-backed G60 Starlink proposal, both of which have been approved by China’s National Development and Reform Commission (NDRC). First batches of satellites for the pair are expected to launch in the coming months.

This new plan will likely not start launching satellites before 2025. Nonetheless, with these three large Chinese constellations plus both Starlink and Amazon’s Kuiper constellation, low Earth orbit is going to begin to get very crowded.

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Dry ice and carbon monoxide detected on asteroids beyond Neptune

9:31 am

Based on new infrared observations by the Webb Space Telescope, scientists have detected for the first time carbon dioxide and carbon monoxide on asteroids beyond Neptune. From the abstract of their paper:

Out of 59 [trans-Neptunian objects] and centaur [asteriods] observed by the James Webb Space Telescope and the NIRSpec Integral Field Unit as part of the DiSCo-TNOs project, we report the widespread detection of CO2 ice in 95% of the sample and CO ice in 47% of the sample.

It appears dry ice is ubiquitous in the outer solar system. Since it is believed these asteroids are very primitive, this data suggests there was a lot of it in the early solar system when the planets were forming.

The discovery of so much carbon monoxide is however more puzzling, as it is expected to sublimate away even in the very cold environment so far from the Sun and is therefore likely not from the early solar system. The scientists posit that it might have been produced when radiation transformed the other carbon-bearing ices.

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Scientists confirm 2023 data that suggested active volcanism on Venus

9:20 am

Active lava flows on Venus
Click for original video

Scientists have now confirmed a 2023 paper that had found evidence in archival data from the Magellan orbiter that there was active volcanism on Venus. From the abstract of the new paper:

To investigate more widespread alterations that have occurred over time in the planet’s surface morphology, we compared radar images of the same regions observed from 1990 to 1992 with the Magellan spacecraft. We found variations in the radar backscatter from different volcanic-related flow features on the western flank of Sif Mons and in western Niobe Planitia. We suggest that these changes are most reasonably explained as evidence of new lava flows related to volcanic activities that took place during the Magellan spacecraft’s mapping mission with its synthetic-aperture radar.

The image to the right is a screen capture, annotated to post here, from a video computer animation created by the science team based on that Magellan data. The red areas are where the scientists detected lava flow changes on the flanks of the volcano Sif Mons. From the press release:

Using flows on Earth as a comparison, the researchers estimate new rock that was emplaced in both locations to be between 10 and 66 feet (3 and 20 meters) deep, on average. They also estimate that the Sif Mons eruption produced about 12 square miles (30 square kilometers) of rock — enough to fill at least 36,000 Olympic-size swimming pools. The Niobe Planitia eruption produced about 17 square miles (45 square kilometers) of rock, which would fill 54,000 Olympic swimming pools. As a comparison, the 2022 eruption of Mauna Loa in Hawaii, Earth’s largest active volcano, produced a lava flow with enough material to fill 100,000 Olympic pools.

There is uncertainty of course with this result, due to the difficulty of analyzing radar data properly. Nonetheless, this result reinforces last year’s results, which saw evidence of changes between the two Magellan data sets in a different region near the volcanoes Ozza Mons and Maat Mons. It also reinforces previous work going back decades that has repeatedly suggested Venus was volcanically active.

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SpaceX launches more Starlink satellites

8:42 am

The bunny never stops. SpaceX this morning successfully placed another 23 Starlink satellites into orbit, its Falcon 9 rocket lifting off from Cape Canaveral.

The first stage successfully completed its tenth flight, landing on a drone ship in the Atlantic.

The leaders in the 2024 launch race:

56 SpaceX
23 China
7 Russia
6 Rocket Lab

American private enterprise now leads the world combined in successful launches, 64 to 36, while SpaceX by itself leads the entire world, including other American companies, 56 to 44.

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Dwayne O’Brien – We Remember

6:01 pm

An evening pause: To the men who flew the planes.

And all who’ve coursed through hostile skies,
Know that freedom requires a sacrifice,
To those who paid the highest price,
We remember.

With a place of honor so deserved,
For what flesh and blood and steel have earned,
That may the glory be reserved,
For the colors they so bravely served.

Keep them flying, keep them flying,
So that all who see them will know,
That our freedom was won by the blood that flowed,
And we remember.

Hat tip Chris Whiting.

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North Korea’s orbital Chollima-1 rocket explodes shortly after launch

2:48 pm

North Korea’s third launch of its orbital Chollima-1 rocket, supposedly carrying a spy satellite, failed today when the first stage exploded shortly after launch.

North Korea’s official state news agency said it launched a spy satellite aboard a new rocket from its main space centre tonight. But it added that the rocket blew up during a first-stage flight soon after liftoff due to a suspected engine problem.

Video of the explosion showed up on social media almost immediately. I have embedded that video below.

Based on when the explosion occurred — early in the flight — and the planned flight path east from North Korea’s west coast Sohai spaceport, the rocket debris very likely crashed inside North Korea, its toxic hypergolic fuels pouring down possibly in habitable areas.
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Pressure from free-speech law firm forces Chase to eliminate language that allowed it debank conservatives

11:57 am

JP Morgan Chase: eager to blacklist you for your opinions
Maybe slightly less eager, but only slightly less

Bring a gun to a knife fight: For reasons that appear related to pressure from the conservative free-speech law firm the Alliance Defending Freedom (ADF), JPMorgan Chase has eliminated language in its payment services policy statement that allowed it to cancel conservative clients merely because it disliked those clients’ politics.

JPMorgan Chase, the largest bank in the U.S., rolled back its WePay service that required merchants to refrain from accepting payments or using the service for activities related to “social risk issues,” which the bank defined as anything “subject to allegation and impacts related to hate groups, systemic racism, sexual harassment and corporate culture.”

The language was removed from the company’s WePay terms of service, the Alliance for Defending Freedom (ADF) discovered this month.

For the past three years ADF has issued what it calls its Viewpoint Diversity Score Business Index, designed to “measure corporate respect for free speech and religious freedom across 43 performance indicators.” Each year it consults with the 85 corporations on its list in an attempt to get them to eliminate policies that encourage the debanking of conservative individuals or organizations. In the case of Chase, a sustained effort over two years eventually caused the company to remove that language.
» Read more

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Today’s Blacklisted American: To celebrate Memorial Day, a federal official bans the American flag

11:09 am

Brooke Merrell:
Brooke Merrell: Proud to ban the American flag

In another example of the fundamental hostility that federal officials feel for their country, officials at Alaska’s Denali National Park recently told contractors working in the park they were forbidden from flying Old Glory on their trucks and equipment, as construction workers have done for more than a century.

According to the contractor, Denali National Park Superintendent Brooke Merrell contacted the man overseeing the federal highways project, claiming there had been complaints about the U.S. flags, and notifying him that bridge workers must stop flying the stars and stripes from their vehicles because it detracts from the “park experience.”
Denali National Park Superintendent Brooke Merrell

“The trucks are flying these American flags, about a foot atop the trucks, about three-foot by four-foot flags, and they said they don’t want this,” the contractor explained. “They’re saying it isn’t conducive and it doesn’t fit the park experience.”

Up until this week, however, the flags were displayed without incident. It was only when the park began running tour buses that the order was given to take down the flags, he added.

» Read more

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Visiting a galactic bar

9:27 am

Visiting a galactic bar
Click for original image.

Cool image time! The picture to the right, reduced and sharpened to post here, was taken by the Hubble Space Telescope as part of a research project studying the flow of gases inside barred galaxies. It shows a spiral galaxy, NGC 4731, edge on, located about 43 million light years away. From the caption:

Barred spiral galaxies outnumber both regular spirals and elliptical galaxies put together, numbering around 60% of all galaxies. The visible bar structure is a result of orbits of stars and gas in the galaxy lining up, forming a dense region that individual stars move in and out of over time. This is the same process that maintains a galaxy’s spiral arms, but it is somewhat more mysterious for bars: spiral galaxies seem to form bars in their centres as they mature, accounting for the large number of bars we see today, but can also lose them later on as the accumulated mass along the bar grows unstable. The orbital patterns and the gravitational interactions within a galaxy that sustain the bar also transport matter and energy into it, fuelling star formation.

Astronomers don’t really understand why these barred structures develop, since you would expect the overall gravity of the galaxy would promote a spiral or spherical shape. There must are factors not yet understood or completely identified (such as the magnetic fields of such galaxies).

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South Korea establishes its own version of NASA

9:08 am

The South Korean government today announced the establishment of its own version of NASA, dubbed the Korea AeroSpace Administration (KASA), with what appears to be a focus on establishing a long term space program and using this to foster an aerospace commercial sector.

KASA was established under a special law passed by the National Assembly in January to unify government organizations in charge of space policy and projects. Based in Sacheon, South Gyeongsang Province, KASA has an annual budget of 758.9 billion won ($556 million) this year. The agency currently has around 110 employees and will eventually have a total of 293.

In March, the government established the 2024 Space Development Promotion Action Plan and set five major missions — including space exploration, space transportation, space industry, space security and space science.

In line with the government’s policy, KASA will establish a roadmap for Korea’s space exploration and plans to promote reusable launch vehicles, development of the country’s own global positioning system (GPS) and a lunar lander program. In particular, it plans to develop a lunar lander with a goal of landing on the moon in 2032, and to design and develop engines to enter the commercial launch service market.

A second South Korea news report quotes the head of this new agency as follows:

“Until now, the country’s space development projects have been led by the government,” Yoon Young-bin, KASA’s inaugural chief, said earlier. “The most important role of the space agency will be supporting the private sector to lead space development.”

He pointed out that the world’s space industry is moving toward the so-called “new space” era, where private companies are actively leading innovation in space technologies with more economic feasibility. “The global paradigm is shifting,” Yoon said, noting that top space companies, such as SpaceX, have developed reusable space rockets and launched a group of small satellites with capabilities similar to medium- and large-sized satellites.

If KASA maintains this approach, then South Korea’s future as a space power is bright. If instead KASA moves to control all space development, including the design and ownership of its rockets and spacecraft, then that program will be stifled, as America’s was by NASA for forty years after the 1960s space race.

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China’s X-37B releases object in orbit

8:55 am

China’s copy of the U.S.’s military’s X-37B reusable mini-shuttle, dubbed Shenlong apparently released an object during its ongoing third orbital mission.

A new object (59884/2023-195G) has been cataloged associated with the Chinese CSSHQ spaceplane in a 602 x 608 km x 50.0 deg orbit. It seems to have been ejected about 1900 UTC May 24.

It is possibly this object is to test recapture maneuvers, as was done by during the mini-shuttle’s previous flight. It is also possible this release is preliminary to the end of the mission and the return of Shenlong to Earth. It is also possible it has a completely different purpose, since China has released practically no information about this spaceplane or any of its missions.

The present mission began a little more than seven months ago, releasing six small satellites a few days after launch. The previous two lasted two days and 276 days respectively. As with everything else, we have no idea how much longer it will remain in orbit.

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North Korea notifies Japan of planned orbital launch

8:40 am

North Korea

North Korea today notified Japan that it plans a new orbital launch sometime between today and June 3, 2024, indicating several potential drop zones for the rocket’s lower stages.

It designated three areas where debris will fall — two west of the Korean Peninsula and the other east of the Philippines’ island of Luzon, according to the news outlet.

Pyongyang has made public a plan to launch three more satellites this year following its first military reconnaissance satellite launch in November.

The launch will apparently take place from North Korea’s Sohai spaceport on its west coast, and will fly over the country heading east. The payload will also likely be a reconnaissance satellite of some kind, similar to what the country launched in November 2023.

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Rocket Lab launches NASA climate satellite

10:41 pm

Rocket Lab today successfully launched the first of two NASA PREFIRE climate satellites, its Electron rocket lifting off from its launchpad in New Zealand.

The leaders in the 2024 launch race:

55 SpaceX
23 China
7 Russia
6 Rocket Lab

American private enterprise now leads the world combined in successful launches, 63 to 36, while SpaceX by itself leads the entire world, including other American companies, 55 to 44.

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May 24, 2024 Quick space links

3:26 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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Harvard Corporation overides its pro-Hamas faculty; denies graduation to pro-Hamas rioters

1:43 pm

Harvard: where you get can get a shoddy education centered on hate and bigotry
Harvard: where you can spend a lot of money
being taught to hate Jews and support Hamas terrorism

In what might be signaling a major sea change at Harvard, the Harvard Corporation, which owns and runs the university, voted this week in support of an earlier decision by its administrative board to deny graduation to thirteen pro-Hamas demonstrators who are presently facing disciplinary action for their participation in the illegal take-over of university grounds for three weeks.

This decision was also a blunt rejection of a vote by the university’s faculty to override the administrative board’s decision and confer degrees to these protestors.

115 faculty members showed up to a meeting in which a decisive majority voted to confer degrees on the 13 seniors. The students were notified of disciplinary charges from the Harvard College Administrative Board just three days earlier.

I wonder if the financial problems Harvard is now facing influenced this decision by the corporation board. Applications to the school have dropped significantly, a number of big donors have cancelled their support for the university, and even worse, Harvard has a cash crunch. A bond offering intended to raise $2 billion this year raised far far less than expected.
» Read more

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Democratic Party voters fire Soros-backed DA in Portland

12:55 pm


Looters in downtown Portland in 2021

In a non-partisan primary on May 21, 2024, Portland voters rejected in large numbers the Soros-backed district attorney they had voted for only four years previously.

On Tuesday night, voters in Multnomah County, Oregon fired one-term George Soros-backed incumbent District Attorney Mike Schmidt.

Fox 12 called the race at approximately 9:30 pm local time with Schmidt’s opponent Nathan Vasquez leading 58 percent to 42 percent. In a non-partisan primary, if a candidate garners over 50 percent of the vote, they are declared the winner of the election but don’t take office until January 2025.

Though the primary election in Portland was “non-partisan” (in that no party affiliation for any candidate was listed) in this wholly Democratic Party-controlled stronghold there was no doubt that both candidates were from that party, and the vast majority of the voters were leftist Democrats as well.

Unlike Republican voters or Republican politicians, who like to whine but rarely do anything to get rid of bad apples, the Democrats in Oregon decided that Schmidt’s reign of disaster these last four years required a change. Schmidt had followed the leftist anti-police agenda of numerous other Soros-backed DAs nationwide.
» Read more

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NASA/Boeing/ULA confirm new June 1st launch date for Starliner

9:36 am

In a press briefing this morning officials from NASA, Boeing, and ULA confirmed the new June 1, 12:25 pm (Eastern) launch date for the first manned flight of Boeing’s Starliner manned capsule.

The officials provided a more detailed explanation of the helium leak in a valve that effects the capsule’s service module attitude thruster system, noting that it is not a design flaw but some specific issue in this particular valve. Because of this, they are confident the system can function safely even with the leak, which is relatively small.

However, the officials also noted that during their reviews in the past two weeks they discovered a new software issue in the spacecraft’s de-orbit engines that — under very unusual and unlikely circumstances — could actually cause those engines to fail to operate. They have figured out a work-around, whereby they fire the engines at a lower thrust in two stages rather than once.

Should the launch on June 1st be scrubbed for weather, they have back up dates on the next few days, though by June 4th ULA might have to swap out batteries on its Atlas-5 rocket that will require a longer stand down of several additional days.

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SpaceX tentatively announces a June 5, 2024 Starship/Superheavy launch date

9:20 am

Starship/Superheavy flight profile
Click for original image at high resolution.

SpaceX today tentatively announced a June 5, 2024 launch date for the fourth Starship/Superheavy orbital test launch.

Before going into any details of the flight plan, as shown in the flight profile above, it is important to quote the first sentence in the announcement:

The fourth flight test of Starship could launch as soon as June 5, pending regulatory approval. [emphasis mine]

SpaceX has not yet gotten a launch permit from the FAA. It is likely it has inside information from the agency suggesting that permit will be issued by this date. It is also likely that SpaceX by making this announcement is applying pressure to the FAA to either get its paperwork done or waive the need so its red tape doesn’t delay the flight unnecessarily.

As for the flight itself, the flight profile is essentially the same as the previous test flight, with the Starship’s orbit designed for safety to bring it down in the Indian Ocean.

The fourth flight test turns our focus from achieving orbit to demonstrating the ability to return and reuse Starship and Super Heavy. The primary objectives will be executing a landing burn and soft splashdown in the Gulf of Mexico with the Super Heavy booster, and achieving a controlled entry of Starship.

To accomplish this, several software and hardware upgrades have been made to increase overall reliability and address lessons learned from Flight 3. The SpaceX team will also implement operational changes, including the jettison of the Super Heavy’s hot-stage following boostback to reduce booster mass for the final phase of flight.

All in all, this announcement is good news. SpaceX is ready to launch.

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SpaceX launches more Starlink satellites

10:09 pm

More bunny action. SpaceX tonight successfully launched another 23 Starlink satellites, its Falcon 9 rocket lifting off from Cape Canaveral in Florida.

The first stage completed its thirteenth flight, landing on a drone ship in the Atlantic.

Increasingly, SpaceX is treating its rockets and launchpads like the airlines treat their airplanes: They only have value if they are flying, and SpaceX is trying to keep both rockets and launchpads flying at all times.

The leaders in the 2024 launch race:

55 SpaceX
23 China
7 Russia
5 Rocket Lab

American private enterprise now leads the world combined in successful launches, 62 to 36, while SpaceX by itself leads the entire world, including other American companies, 55 to 43.

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