China launches satellite to test cell-to satellite communications

China today successfully launched a satellite to test “direct broadband connectivity of mobile phone with satellite”, its Long March 2D rocket lifting off from its Xichang spaceport in southwest China.

China’s state-run press released no information about where the rocket’s lower stages, using very toxic hypergolic fuels, crashed inside China.

The leaders in the 2026 launch race:

64 SpaceX
31 China
8 Russia
7 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 64 to 55.

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Space Force awards SpaceX a $4.16 billion satellite contract, the second this week

The Space Force yesterday awarded SpaceX a $4.16 billion contract to build a satellite constellation to track all flying objects, in addition to the $2.29 billion contract it awarded the company earlier in the week for a different data/communications constellation.

The $4.16 billion Other Transaction Authority agreement is for the Space-Based Airborne Moving Target Indicator (SB-AMTI) program, which aims to develop and field a network of satellites carrying sensors that can continuously detect and follow airborne targets. The deal will allow the Space Force to field an AMTI constellation by 2028, Space Systems Command said in a press release.

Space Force officials also noted that this contract is only the first, and that it does not intend to rely just on SpaceX for this tracking constellation. It intends to use “a highly diversified pool of traditional and non-traditional vendors, each bringing various capabilities” to the system.

Regardless, SpaceX’s satellite division this week won two Pentagon contracts worth more than $6 billion. Not bad work if you can get it.

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SpaceX launches more Starlink satellites

SpaceX this morning successfully placed another 24 Starlink satellites into orbit, its Falcon 9 rocket lifting off from Vandenberg Space Force Base in California.

The first stage completed its 22nd flight, landing on a drone ship in the Pacific.

The leaders in the 2026 launch race:

64 SpaceX
30 China
8 Russia
7 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 64 to 54.

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May 29, 2026 Zimmerman/Batchelor podcast

Embedded below the fold in two parts.

To listen to all of John Batchelor’s podcasts, go here.

The first segment below is definitely worth listening to, because my discussion with John Batchelor about the Blue Origin explosion yesterday demonstrated quite clearly the difficulty of most people to understand that the NASA Moon program is no longer the only game in town. John kept asking if SpaceX can continue our Moon program, and I kept trying to explain to him that it not only could, its private effort was the American space effort, and that effort will carry NASA’s increasingly irrelevant Artemis program along with it. He couldn’t get it. As far as he was concerned, the only program that mattered was the government program of NASA’s, and if that program is in trouble he worries we have nothing at all.
» Read more

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ULA’s Atlas-5 rocket launches 29 Leo satellites for Amazon

ULA this evening successfully placed 29 more Leo satellites into orbit for Amazon, its Atlas-5 rocket lifting off from Cape Canaveral Space Force Station in Florida.

ULA is in the process of retiring the Atlas-5 rocket. It now has only seven Atlas-5 rockets left in stock, with one reserved for Leo launches and six for Boeing’s Starliner manned capsule (though there is a good chance some if not all of the Starliner launches will be switched to other payloads). Because its Vulcan rocket, intended to replace Atlas-5, is presently grounded, the company appears to be accelerating Atlas-5 launches, with the last few launches space only about a month apart.

With this launch, Amazon now has 331 Leo satellites in orbit, out of the 1,616 it needs to launch by July to meet its FCC license requirement. It is not going to meet that requirement, because two of the five rockets it contracted for launches are presently grounded (ULA’s Vulcan and Blue Origin’s New Glenn), and only one launch is presently scheduled before July, by Arianespace’s Ariane-6. Furthermore, ULA has only one more Atlas-5 scheduled for Leo, and the ten launches Amazon had purchased from SpaceX are not scheduled. For these reasons, Amazon has asked for a time extension, which the FCC is presently considering.

As this was only the fourth launch by ULA in 2026, the leader board for the 2026 launch race remains unchanged:

63 SpaceX
30 China
8 Russia
7 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 63 to 54.

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May 29, 2026 Quick space links

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

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SpaceX launches another 29 Starlink satellites

SpaceX this morning successfully placed 29 more Starlink satellites into orbit, its Falcon 9 rocket lifting off from Cape Canaveral Space Force station in Florida. The first stage completed its 16th flight (57 days after its last flight), landing on a drone ship in the Atlantic.

The leaders in the 2026 launch race:

63 SpaceX
30 China
8 Russia
7 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 63 to 53.

ULA has an Atlas-5 launch scheduled for this evening to launch 29 Leo satellites for Amazon, but at the moment the weather does not look promising.

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Firefly announces new stock sale aimed at raising more than a half billion in new funds

The publicly traded rocket/lunar lander company Firefly yesterday announced a new public offering of stock, totalling more than 12 million shares, with the goal of raising more than a half billion for “general corporate purposes.”

Firefly Aerospace (Nasdaq: FLY), a market leading space and defense technology company, today announced the pricing of its public offering of 4,000,000 shares of its common stock and 8,000,000 shares of common stock by certain selling stockholders (the “Offering”) at a public offering price of $48.00 per share. In addition, the selling stockholders have granted the underwriters a 30-day option to purchase up to an additional 1,800,000 shares of common stock at the public offering price, less underwriting discounts and commissions. The Offering is expected to close on June 1, 2026, subject to customary closing conditions.

Firefly intends to use the net proceeds from the Offering for general corporate purposes, including to support growth of core business and recently awarded programs and initiatives. Firefly will not receive any of the proceeds from the sale of shares by the selling stockholders.

Firefly's stock history
Click for source.

Simple math says this offering hopes to raise $576 million dollars, assuming the $48 per share price holds.

The graph to the right shows the full price history of Firefly’s stock since the initial public offering in 2025. After an initial high around $60, the stock sagged to around $20, and only has recovered back into the $40 to $50 range in the past few months. It appears therefore that the company has well timed this new offering.

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Curiosity drill samples taken at different elevations show different Martian climates

Core samples used in study
Figure S1 of the study, showing the location
of the core samples. Click for source.

By comparing 20 different Curiosity drill samples taken during the rover’s fourteen years on Mars, scientists have detected hard evidence that the climate in Gale Crater was distinctly different at different elevations, for long periods.

This study shows that hematite can also be a marker of climate changes based on its crystallite sizes and structures, which change under different temperatures. The scientists found that hematite crystallites from higher elevations in Gale Crater were less than 10 nanometers in size, while crystallites from lower locations were generally larger, reaching up to 65 nanometers. These findings aligned with the observations that samples from higher elevations contained both hematite and goethite, while lower elevation samples lacked goethite.

They concluded that, under warmer conditions when the pH of water is neutral or slightly alkaline, goethite can transform into hematite. These warmer conditions also favored an increase in hematite crystallite size in the deeper layers of Gale Crater through a process known as Ostwald ripening, in which smaller crystallites dissolve and contribute to the growth of larger ones. “This can tell you that the top layers were colder and didn’t have enough water, or the water presence was relatively short-lived, so the crystallites didn’t have sufficient time and conditions to grow in size,” said Peretyazhko. “But the lower layers had longstanding warm water that allowed those crystallites to grow.”

The white dots on the map to the right shows the location of the drill samples used, taken along Curiosity’s travels as it climbed Mount Sharp. Overall Curiosity has climbed about 2,500 feet, so the differences found the samples mark the past climate differences between the crater floor and the mountain’s foothills. According to this data, the crater floor had long-standing water in some form, exceeding millions of years. At higher altitudes there was less and less, and it was there for increasingly shorter periods.

As the press release notes, “A unique highlight of this study is that the data comes from Martian samples, rather than from theoretical modeling.” Similar conclusions from earlier Curiosity data required Earth proxies and computer modeling. This result is from hard data from Mars.

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South Korean rocket startup Innospace signs up another American satellite launch manager

Less than five seconds after launch
Hanbit-Nano less than five seconds after launch and
just prior to its failure in December 2025.

The South Korean rocket startup Innospace has signed a deal with the American company Ensemble Commercial Services to help obtain satellite contracts and manage the integration and deployment of these payloads.

This marks INNOSPACE’s second launch service distribution agreement in the U.S., following its agreement signed in August last year with Texas-based Arrow Science and Technology, LLC. By securing multiple local partners in the U.S., INNOSPACE plans to enhance customer accessibility in the North American market and accelerate its efforts to identify satellite launch demand and expand sales activities.

Under the agreement, Ensemble will identify potential customers in the U.S., including satellite companies, space startups and research institutions, and connect them with launch service opportunities offered by INNOSPACE for small satellites. Ensemble will also provide regular market updates on the U.S. satellite industry, launch demand trends and potential customer activities, supporting INNOSPACE’s sales activities in the U.S. market.

…With this agreement, INNOSPACE has now secured launch service distribution partners across nine companies in seven countries, including Taiwan, Japan, Italy, the Netherlands, the U.S., Germany and the United Kingdom.

Innospace has made one failed attempt in December 2025 to launch its Hanbit-Nano rocket. It hopes to try again in the third quarter of this year.

Hat tip to BtB’s stringer Jay.

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Hundreds of NASA-funded researchers violated the law that bans working with China

ASU, apparently one of many universities filled with people now hostile to America
ASU, apparently one of many universities filled
with people now hostile to America

According to a just completed House investigation, hundreds academics and universities have routinely violated the law by taking NASA funding for their research but then working hand-in-glove with Chinese individuals or institutions.

A House investigation has identified hundreds of scientific publications in which NASA-funded U.S. researchers appear to have conducted joint work with Chinese institutions, potential violations of a federal law that has barred such collaboration for more than a decade.

The report, released on Wednesday by the House Select Committee on the Chinese Communist Party, also found that, in several instances, some of that research involved collaboration between National Aeronautics and Space Administration (NASA) scientists and institutions that are part of “China’s defense research and industrial base.”

You can read the full report here [pdf]. Among its numerous findings for example it notes that Arizona State University and Stanford University both filed false certifications, stating that they were not working with Chinese individuals, agencies, or institutes, even though their later published papers blandly listed such individuals, agencies, and institutes. The report lists numerous other similar examples.

During Trump’s first administration the Justice Department made a concerted effort to enforce this law. Under Biden that effort ended (with many prosecutions abandoned), to be replaced with a zealous effort to ignore it, an effort enthusiastically supported by the partisan leftist academic community. This new report essential outlines the violations that began during the Biden era.

China is aggressively working on all levels to steal technology from the west. Sadly, it is more and more aided by America’s university system and the administrators, professors, and researchers based there, a large majority of whom are now outright hostile to our country and wish to sabotage it.

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