SpaceX launches more Starlink satellites

SpaceX today successfully placed another 27 Starlink satellites into orbit, its Falcon 9 rocket lifting off from Vandenberg Space Force Base in California.

The first stage (B1088) completed its 19th flight (21 days after its previous mission), landing on a drone ship in the Pacific.

The leaders in the 2026 launch race:

106 SpaceX
55 China
13 Rocket Lab (plus two suborbital HASTE launches)
11 Russia

For the third straight year SpaceX leads the entire world combined in total launches, 106 to 98.

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German startup Isar Aerospace successfully launches its Spectrum rocket

Spectrum just after clearing the launch tower
Spectrum just after clearing the launch tower

After one launch failure last year and three scrubs in January, in March, and in June, German startup Isar Aerospace today successfully launched its Spectrum rocket for the first time, lifting off from Norway’s Andoya spaceport. As of posting the smallsat payloads have not yet been deployed.

With this launch, Isar becomes the first new European rocket startup to reach orbit. It is also the first solely German rocket company to build and launch a rocket since the V2 rocket during World War II.

The launch was also the first orbital launch from Andoya, putting that spaceport ahead of its European competitors, two spaceports in the United Kingdom (Saxavord and Sutherland), one in Sweden (Esrange), and two proposed off-shore launch platforms based in Germany.

For Europe in 2026, ESA’s government company Arianespace has completed four launches, Italy’s Avio one, and now Isar one. The leader board however for the 2026 launch race remains the same:

105 SpaceX
55 China
13 Rocket Lab (plus two suborbital HASTE launches)
11 Russia

For the third straight year SpaceX leads the entire world combined in total launches, 105 to 98.

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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, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also 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

Wall Street Journal – The pens of Montblanc

An evening pause: I wonder if any of my readers use a fountain pen. I did, from junior high school through college and beyond, and only stopped when I got my first computer and could finally produce typed work quickly with no errors. The feel of writing with a fountain pen however cannot be matched.

Have a great weekend!

Hat tip Cotour.

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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.

Katalyst’s Link gets to within 7.5 miles of Gehrels-Swift

Link firing all three of its xenon thrusters
Link firing all three of its xenon thrusters.

In order to demonstrate its spacecraft’s capabilities, the satellite repair startup Katalyst has successfully maneuvered its Link robot to within 7.5 miles of the Gehrels-Swift Observatory, though it will make no attempt to get closer or rescue the space telescope.

NASA and Katalyst scaled back a mission that would have used LINK to boost the agency’s Neil Gehrels Swift Observatory to a higher altitude, because of attitude control issues with LINK. However, Katalyst continues to demonstrate as many of LINK’s capabilities in space as possible, to collect data to inform future spacecraft servicing technology and operations.

Over the past few days, Katalyst raised LINK’s orbit and made adjustments to align with Swift’s orbit. The team also deployed all three of LINK’s robotic arms and fired all three of the electric propulsion thrusters at the same time. LINK came within 7.5 to 9 miles (12 to 15 kilometers) of Swift. LINK will not make any closer approach to Swift throughout its remaining operations in orbit. The Katalyst team estimates LINK will deorbit after another 2 to 3 weeks.

The orbit of Gehrels-Swift meanwhile is expected to decay sometime in the next few months. Until that happens however its science team has resumed science operations.

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September 4, 2026 Quick space links

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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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

BepiColombo successfully completes first phase to insert two spacecraft into Mercury orbit

First phase of orbital insertion
Click for original image.

The joint European/Japanese duel orbiter BepiColombo mission yesterday successfully completed the first phase for placing its two spacecraft into Mercury orbit.

Acquisition of signal via two Estrack deep space antennas, in Cebreros (Spain) and Malargüe (Argentina), have confirmed the successful separation of BepiColombo’s Mercury Transfer Module (MTM) from the spacecraft stack. Current telemetry indicates all systems are nominal, and MPO’s solar panels are charging the spacecraft’s batteries.

The Mercury Transfer Module was used to transport both Europe’s Mercury Planetary Orbiter (MPO) and Japan’s Mercury Magnetospheric Orbiter (Mio) to Mercury. The two orbiters are still attached to each other, and will enter orbit together on November 21, 2026. The final crucial phase is when they separate on December 9th to move into complementary orbits.

Science operations are scheduled to begin in April 2027.

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The EU’s proposed Space Act is why the White House asked American companies to not go to a French space summit, and they quickly agreed

The European Union
This label would be more accurate if it read
“NOT made in the European Union”

When asked by the White House earlier this week to not attend a French space summit being held next week, four American space companies — SpaceX, Blue Origin, Stoke Space, and Starcloud — quickly agreed and pulled out of the conference.

While the press reports have tried to imply that Trump threatened these companies if they attended the conference, the truth is that the administration didn’t have to make any threats at all. What happened was that it likely pointed out that the Europe Union (EU) — with France’s blessings — is considering passing a truly oppressive Space Act that would impose odious regulations on the American space industry, and that the State Department, and both the American and European space industries have objected strongly to that language. To attend the conference would not only imply acceptance of the proposed act, it would encourage the EU to pass it. As noted in August 2026 by the Computer & Communications Industry Association, an American trade organization for the satellite industry:

The EU Space Act could impose billions in incremental compliance costs on U.S. companies, which would lead to increased market prices, reduced U.S. exports, reduced U.S. tax revenues, harm to the U.S. space industry’s global competitiveness, increased global market share in dual-use space assets for China, and by extension harm to U.S. national security interests.

The worst part of the act, as noted by a European think tank that supports the law, is that it “aims to extend the EU’s jurisdiction to space service providers based outside the EU.”

It thus didn’t take much to convince these companies to pull out, especially because it appears the present French government under Emmanuel Macron is likely playing a very influential part in pushing to pass the Space Act. Any action by American companies to encourage those polices in Europe would be very counterproductive to their own interests.

Expect this divide between Europe and the U.S. to widen if the European Union persists and passes this law that tries impose its rule on American sovereignty. Its only accomplishment will be to harm to the EU’s space industry by isolating it from American customers.

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Dolly Parton – My Tennessee Mountain Home

An evening pause: Performed live in 2010. One of my favorite songs, written by Parton, in memory of her childhood. She will be missed.

To my readers: I am in need of evening pause suggestions. If you’ve made suggestions already, you know the routine. Send me stuff! If you haven’t and want to contribute, put a comment below saying you have a suggestion (without including the link). I will contact you with the guidelines so you can email me your suggestions directly so that I can then schedule them.

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September 3, 2026 Quick space links

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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India launches its first geosynchronous Earth observation satellite

India’s space agency ISRO today (September 4, 2026 in India) successfully placed its first Earth observation satellite in a geosynchronous orbit above India, its GSLV rocket lifting off from its Sriharikota spaceport on the east coast of the subcontinent. As of posting the satellite has been deployed but has not yet reached its final orbit.

This was ISRO’s first successful launch in 2026. In January 2026 it attempted to launch its smaller PSLV rocket, but when that launch failed at almost the same moment the previous PSLV had failed, during the engine firing of the third stage, ISRO grounded all its rockets until today while it investigated the failure. To date, however, the agency has not released the results of that investigation.

In the meantime the private Indian startup Skyroot successfully completed its first orbital launch in July. Thus, at this moment India has completed two launches in 2026, with its private sector matching its government agency.

The leader board for the 2026 launch race remains the same:

105 SpaceX
55 China
13 Rocket Lab (plus two suborbital HASTE launches)
11 Russia

For the third straight year SpaceX leads the entire world combined in total launches, 105 to 97.

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Dawn Aerospace gets 100-flight contract to fly its as-yet unbuilt Aurora spaceplane

The crew and Mk-II Aurora
The crew and Mk-II Aurora

Dawn Aerospace has now won a contract from the Astral Materials to fly its larger as-yet unbuilt Aurora spaceplane up to 100 times over two years in order to test Astral’s “furnace technology designed to manufacture advanced materials in microgravity.”

Under the agreement, an initial campaign of Aurora microgravity flights will be conducted from the Burns Flat facility [in Oklahoma]. The missions will allow Astral Materials to repeatedly test and refine its technology, with Aurora designed for turnaround times of approximately four hours.

Astral Materials is developing microgravity furnace hardware aimed at producing higher-quality semiconductor crystals and other advanced materials. Reducing the effects of gravity can limit convection and sedimentation during manufacturing, potentially producing crystals with fewer defects and greater consistency.

Dawn’s press release can be found here. It has flown its smaller supersonic drone Mk-II Aurora test plane, shown in the image to the right, numerous times, but never into space. Those flights however allowed it to raise about $50 million in private capital to develop the larger Aurora, which it hopes to begin flying suborbital space missions sometime in 2027.

This Astral contract gives it a paying customer before Aurora has even flown. It also indicates that Dawn is beginning to grab the suborbital business that Blue Origin abandoned when it stopped flying its New Shepard suborbital capsule.

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An empty super-bubble cleared by stars

A super-bubble in space
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken by the Hubble Space Telescope and released today. It shows what astronomers call a “super-bubble” in the Large Magellanic Cloud, the nearest galactic neighbor to the Milky Way about 160,000 light years away.

The central void is a ‘super-bubble’ spanning roughly 210 by 140 light-years. The glittering stars at the center of the void are responsible for its creation; through their powerful stellar winds and explosive supernovae, these stars have expelled much of the gas from which they were born.

When the stars of N44’s central star cluster swept away this gas, the expelled gas formed a shell around the super-bubble. New stars are forming in this compressed gas shell, making N44 an interesting target for researchers studying the process of star formation. In particular, astronomers have turned to this nebula as an ideal place to time this process from start to finish. Their goal is to understand how long it takes from the collapse of cold gas clouds into dense knots to the moment nuclear fusion ignites in the heart of a newborn star.

While many of stars inside this bubble are either hot super-giants pumping out intense radiation or baby stars that will eventually evolve to become like our Sun, a good percentage are similar to our Sun, which makes them like it in more ways than one. The Sun has been traveling through its own super-bubble for many millions of years, which because it is a relatively calm region has likely allowed life to form on Earth because our solar system has not been near any major violent galactic event, such as a supernova, for a very long time.

Thus, this super-bubble provides an opportunity for astronomers to not only study the formation of stars, it can also be used as a proxy for the environment of our own solar system.

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A decagon-shaped ring possibly detected encircling Saturn’s south pole

Saturn's ten-sided ring surrounding the south pole

Scientists using the Hubble Space Telescope now believe they have detected a decagon-shaped ring (“ten-sided”) encircling Saturn’s south pole at about 60 degrees south latitude.

The image to the right, from figure 1 of the research paper, shows that ten-sided ring. From the press release:

Recent observations with NASA’s Hubble Space Telescope have revealed a giant, evolving, 10-sided atmospheric wave encircling Saturn’s south pole. This discovery marks the first time a large, regular-sided jet pattern has been observed in the planet’s southern hemisphere. The feature appears remarkably similar to Saturn’s famous hexagon at its northern pole, but is also distinctly different, suggesting scientists may be witnessing a new atmospheric phenomenon develop on the iconic gas giant.

…The wave sits within one of Saturn’s powerful jet streams and extends through multiple layers of the atmosphere, indicating it is not just a cloud-level feature, but a vertically extended atmospheric structure. The decagon’s apparent position shifts slightly, because Hubble captures images from different wavelengths. Those different wavelengths probe different altitudes in Saturn’s atmosphere. “The most intriguing part to me is that this seems to have just formed recently,” said Simon. “The question is, why did it suddenly form now when we haven’t seen one before?”

To put it mildly, there is a lot of uncertainty in this result.

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The Dragonfly landing zone on Titan gets an official name

Dragonfly landing zone on Titan
Click for original image.

The International Astronomical Union (IAU) has now approved the name of the dune field on Titan where NASA’s Dragonfly helicopter mission will land when it arrives there in 2034.

The International Astronomical Union (IAU), the global body responsible for officially designating objects in space, has approved a name for the large dune field where Dragonfly will land on Titan: Ahmakiq Undae. The region consists of dunes and interdune areas to the south of Selk Crater, extending to the edge of a range of hills or mountains.

In the Mayan tradition, people appealed to the spirit Ahmakiq (pronounced “ah-mahk-eek”) to stop strong winds from damaging their crops. The name literally translates to the “one who locks up the wind,” and aligns with the IAU convention of naming dune fields – or undae, in Latin after gods and goddesses of wind. The Dragonfly team chose Ahmakiq from a list of IAU suggestions.

The image to the right shows the location of Ahmakiq Undae, in the northern low latitudes. The crater to the northeast of this dune field is 56-mile-wide Selk Crater, which the mission planners hope Dragonfly can eventually reach after landing.

The press release at the link also reports the continuing installation of Dragonfly’s wiring harness, in preparation for the launch in 2028.

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Sierra Space says it has won payload contracts for its Tenacity Dream Chaser

Tenacity undergoing recent tow tests
Tenacity undergoing tow tests, in November 2025,
tests that should have been done years earlier.
Click for original image.

In a very vague press release yesterday, Sierra Space announced that it has secured a variety of contracts from a number of military and commercial customers to fly payloads on the first flight of its Tenacity Dream Chaser mini-shuttle.

The release identified none of the agencies or companies involved, only stating the following:

Sierra Space is finalizing the manifest with defense, civil, and commercial payloads, offering customers the opportunity to demonstrate capabilities on a platform that will set the standard for the next era of orbital operations.

Back in 2024 Sierra Space said Tenacity would launch before the end of the year on a demo flight to ISS — for NASA — but that flight was canceled. A year later in 2025 NASA canceled its seven-mission cargo contract with Sierra, replacing it with a single orbital test flight. Another year has passed and no flight has occurred, and two press releases from Sierra in November 2025 and April 2026 strongly suggested the spacecraft simply wasn’t ready for launch, even then.

This new press release suggests the company is trying to drum up business, but has not yet been able to convince anyone to sign on the dotted line. Tenacity might finally be ready to fly, but the company’s lack of transparency and the very very long development timeline with many broken promises (which began in 2016 when NASA first awarded the company the cargo contract) has apparently made potential customers skittish, for good reason. After more than a decade of development, nothing has yet flown.

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A Martian slump feature

A Martian slump feature
Click for original image.

Cool image time! The picture to the right, rotated, cropped, and reduced to post here, was taken on July 21, 2026 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the science team labels a “slump feature”, essentially a large avalanche where the entire mass of material slides downward in one unit. Geologists also call this kind of avalanche a “mass-wasting event”, as it involves a sudden collapse of a large amount of material, usually instigated by a basic instability in the material that allows it to break away when some form of erosion acts upon it.

In this case, the mass involved dropped about 4,900 feet, a little over a mile in altitude, over a distance of about two and a half miles. Nor is this the only such event on this 5,300-foot high cliff wall. If you look closely at the cliff to the north and south of the biggest slump feature, you will notice a number of smaller but similar slumps. It appears the material that forms the cliff is unstable enough that over time it is falling into the canyon.

The location however tells us that whatever caused these slumps, they likely occurred a long time ago.
» Read more

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