Elon Musk’s presentation “The Road to Making Life Multiplanetary”

The Musk game plan for Mars exploration over the next few years
The Musk game plan for Mars exploration over the next few years.

It appears Elon Musk finally gave his public presentation to SpaceX employees today, entitled “The Road to Making Life Multiplanetary”, and had it posted on X.

I have embedded that presentation below.

After reviewing the present development program for Starship/Superheavy (without mentioning anything about this week’s flight), Musk then outlined the game plan for the the next few years, as shown in the graphic above. If all goes as planned (not to be expected), the first Starships will head to Mars in about eighteen months, at the next launch window near the end of 2026. These flights will be unmanned, and will require that by then SpaceX will have also developed orbital refueling capability.

Musk hopes the first manned missions will take place at the next launch window in 2028-29, with the number of ships increased from 5 to 20. Later windows will see 300 and then 500 ships launched. For those flights a lot of work will need to be done to make Starships function as interplanetary spaceships, something it appears SpaceX and Musk have not yet devoted much energy to.

As always, Musk’s target goals are ambitious and not likely to be met. But as always, his targets are not unreasonable, which means SpaceX will likely eventually get all this done but late by only one or several launch windows.

Musk also noted that this entire program is presently being funded by Starlink revenues. The government for SpaceX and Musk’s space exploration plans is largely now irrelevant. This fact is possibly the most historically significant revelation in his presentation.

I strongly recommend you watch his whole speech, if only to enjoy the “Wow!” factor.

The future is going to be exciting for sure.

Hat tip to reader Gary.
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South Korea rocket startup launches small prototype rocket

Unastella rocket at launch
Unastella rocket at launch

A South Korea rocket startup dubbed Unastella on May 28, 2025 successfully launched a small prototype suborbital rocket from its own launch site near the country’s southern coast.

UNA EXPRESS-I is 9.45 meters long and has a total weight of 2 tons. It is a small launch vehicle that uses kerosene (jet fuel) and liquid oxygen as fuel, with a thrust of 5 tons. The vehicle successfully completed its flight to the target distance of 10 kilometers and fell into the maritime safety zone set by Goheung County, the company stated. Park Jae-hong, the CEO of Unastella, noted, “For the first launch, we lowered the altitude for safety and extended the reach.”

This is South Korea’s second rocket startup that has launched a small test prototype, the first being Innospace which launched its test rocket from Brazil in 2023 and hopes to do an orbital launch before the end of the year.

It appears that South Korea is shifting successfully to the capitalism model. Back in 2023 it was trying to develop its government-built Nuri rocket, but that development seems to have stalled. Since then its newly formed space agency has established policies encouraging private space commercialization, which has apparently resulted in these two new rocket companies.

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Katica Illényi – Bubamara

An evening pause: Performed live 2016. It ain’t some long-haired guy twiddling on a bass guitar, but her fingers as a nimble and as creative.

Hat tip Judd Clark.

To all: I am in need of more evening pause suggestions. If you have suggested before, you know the rules and the way to do it. Please send me stuff. If you haven’t suggested anything previously and have something you think would work, say so in a comment here — but don’t tell us what your suggestion is. I will email you to get it. The guidelines:

1. The subject line should say “evening pause.”
2. Please send only one suggestion per email.
3. Variety! Don’t send me five from the same artist. I can only use one. Pick your favorite and send that.
4. Live performance preferred.
5. Quirky technology, humor, and short entertaining films also work.
6. Suggestions should generally be short, less than 10 minutes, preferable under 5 minutes
7. Search BtB first to make sure your suggestion hasn’t already been posted.
8. I might not respond immediately, as I schedule these in a bunch.
9. Avoid the politics of the day. The pause is a break from such discussion.

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SpaceX launches more Starlink satellites

The beat goes on! SpaceX this morning successfully placed another 27 Starlink satellites into orbit (including 13 with cell-to-satellite capabilities), its Falcon 9 rocket lifting off from the Kennedy Space Center in Florida.

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

The leaders in the 2025 launch race:

65 SpaceX
30 China (with two launches scheduled later today)
6 Rocket Lab (with one launch scheduled for today SCRUBBED)
6 Russia

SpaceX now leads the rest of the world in successful launches, 65 to 49.

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SpaceX launches Starship/Superheavy on ninth test flight, but experiences issues in orbit

Starship in orbit before losing its attitude control
Starship in orbit before losing its attitude control

SpaceX today was able to successfully launch Starship and Superheavy on its ninth test flight, lifting off from SpaceX’s Starbase spaceport at Boca Chica.

The Superheavy booster completed its second flight, with one of its Raptor engines actually flying for the third time. Rather than recapture it with the launchpad chopsticks, engineers instead decided to push its re-entry capabilities to their limit. The booster operated successfully until it was to make its landing burn over the Gulf of Mexico, but when the engines ignited all telemetry was lost. Apparently that hard re-entry path was finally too much for the booster.

Starship reached orbit and functioned successfully for the first twenty minutes or so. When engineers attempted a test deployment of some dummy Starlink satellites, the payload door would not open properly. The engineers then closed the door and canceled the deployment.

Subsequently leaks inside the spacecraft with its attitude thrusters caused the attitude system to shut down and Starship started to spin in orbit. At that point the engineers cancelled the Raptor engine relight burn. The spacecraft then descended over the Indian Ocean as planned, but in an uncontrolled manner. Mission control then vented its fuel to reduce its weight and explosive condition. It essentially broke up over the ocean, with data was gathered on the thermal system until all telemetry was lost.

Though overall this was a much more successful flight than the previous two, both of which failed just before or as Starship reached orbit, the test flight once again was unable to do any of its objectives in orbit. It did no deployment test, no orbital Raptor engine burn test, and no the re-entry tests of Starship’s thermal protection system. Obviously the engineers gathered a great deal of data during the flight, but far less than hoped for.

SpaceX has a lot of Superheavy and Starship prototypes sitting in the wings. I expect it will attempt its next flight test, the tenth, relatively quickly, by July at the very latest. I also do not expect the FAA to stand in the way. It will once again accept SpaceX’s investigative conclusions instantly and issue a launch license, when SpaceX stays it is ready to launch.

As Starship reached orbit as planned, I am counting this as a successfully launch. The leaders in the 2025 launch race:

64 SpaceX
30 China
6 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 64 to 49.

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SpaceX launches 24 Starlink satellites

SpaceX today 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 thirteenth flight, landing on a drone ship in the Pacific. At least, it appeared so, though there were problems this time with the live stream, which cut off just before touchdown.

The leaders in the 2025 launch race:

63 SpaceX
30 China
6 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 63 to 49.

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Live stream of Elon Musk’s speech to SpaceX employees today

FINAL UPDATE: It appears his talk has been called off, for the present. I suspect he wants a better idea what happened on today’s flight before speaking.

UPDATE: It appears Musk has rescheduled his speech for 6 pm (Central) tonight, after the launch of the ninth test flight of Starship/Superheavy. The embedded live stream below is for this rescheduled broadcast.

I have embedded below the Space Affairs live stream of Elon Musk’s speech that he plans to give to his SpaceX employees today at 10 am (Pacific) today. Musk has entitled it “The road to making life interplanetary.” He has already indicated that he will outline in more detail SpaceX’s program for getting Starship/Superheavy operational, including the likelihood of test flights to Mars in the near future.
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“Was this trip necessary?”

An evening pause: On Memorial Day, let’s revisit an evening pause from 2011 of one short scene from the William Wellman film, Battleground (1949), to remind us why sometimes it is necessary to fight a war.

The saddest thing about this clip is how ugly it makes too many modern Americans look, for they have adopted the certain, ignorant, and bigoted aspects of the totalitarians from the 1930s and 1940s that the generation then fought so hard to defeat. Today’s American totalitarians — almost all of whom are on the left — are certain that because Donald Trump is doing things they disagree with, he along with all of his supporters should be killed. No debate is permitted. They are right and anyone who challenges them is evil.

Memorial Day is not simply about remembering the dead so that they will not have died in vain. It is also about remembering why they died.

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Cargo Dragon splashes down and is recovered successfully

A SpaceX cargo Dragon capsule was recovered successfully earlier today after it splashed down off the coast of California.

The spacecraft carried back to Earth about 6,700 pounds of supplies and scientific experiments designed to take advantage of the space station’s microgravity environment after undocking at 12:05 p.m., May 23, from the zenith port of the space station’s Harmony module.

Some of the scientific hardware and samples Dragon will return to Earth include MISSE-20 (Multipurpose International Space Station Experiment), which exposed various materials to space, including radiation shielding and detection materials, solar sails and reflective coatings, ceramic composites for reentry spacecraft studies, and resins for potential use in heat shields. Samples were retrieved on the exterior of the station and can improve knowledge of how these materials respond to ultraviolet radiation, atomic oxygen, charged particles, thermal cycling, and other factors.

Other cargo returned included a robot hand that tested its grasping and handling capabilities in weightlessness, as well as other experiments.

The capsule itself spent three months in orbit after launching at the end of April.

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SpaceX launches more Starlinks

Earlier today SpaceX successfully placed another 23 Starlink satellites into orbit (including 13 with cell-to-satellite capability), its Falcon 9 lifting off from Cape Canaveral in Florida.

The first stage completed its 24th flight, landing on a drone ship in the Atlantic.

The leaders in the 2025 launch race:

62 SpaceX
30 China
6 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 62 to 49. The company also has another Starlink launch planned for tomorrow morning. The launch was scrubbed, rescheduled for May 27th.

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Orbital tug startup Impulse Space wins contract with satellite company SES

The orbital tug startup Impulse Space has won a contract to use its Helios tug to transport the satellites of the long established Luxembourg company SES to their correct orbit after launch.

The companies announced May 22 that they signed a multi-launch agreement that starts with a mission in 2027 where Impulse’s Helios kick stage, placed into low Earth orbit by a medium-class rocket, will send a four-ton SES satellite from LEO to GEO within eight hours. The announcement did not disclose the vehicle that will launch Helios and the satellite, or the specific SES satellite.

The agreement, the companies said, includes an “opportunity” for additional missions to transport SES satellites to GEO or medium Earth orbits.

This the first satellite tug contract for Impulse’s Helios tug, which is the larger of the company’s two tugs, the smaller version dubbed Mira. While Mira has completed an orbital demo mission, Helios has not yet flown, though it has three planned launches beginning in 2026.

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Axiom signs deals with Egypt and the Czech Republic

Axiom sent out two press releases yesterday touting separate agreements it has reached with two different countries that will either involve research or a future tourist flight to ISS or to its own station.

First the company announced that it has signed a partnership agreement with the Egyptian Space Agency to partner on a range of space-related research. The language describing this work was typically vague, and is so likely because it depends on the time table for the development and launch of Axiom’s station.

Second Axiom announced that the Czech Republic has signed a letter of intent to fly one of its own astronauts on a future Axiom manned flight. Like the Egyptian press release, view specifics were given, likely for the same reasons.

What both deals signal is that there is an international market for the commercial space stations under development and Axiom is aggressively working to garner that business. Its fourth commercial manned mission, set to launch in early June, carries paid government astronauts from Poland, Hungary, and India. The two new announcements add Egypt and the Czech Republic to the company’s international customers.

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Johannes – The Most Beautiful Wingsuit Flight I’ve Done

An evening pause: From the peak of the Wetterhorn, 12,106 feet. As always, these videos don’t show the work required to get to that peak, but he does describe it on the youtube page:

We climbed over the Willsgrätli, taking around 4 hours to reach the summit of the Wetterhorn. Holy moly… this climb was serious. We didn’t use ropes, and the heavy backpack caused me some problems in certain climbing sections.

What are you planning to do this Memorial Day weekend?

Hat tip Judd Clark.

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Cargo Dragon undocks from ISS

That this story is not news anymore is really the story. A cargo Dragon capsule that has been docked to ISS since April 22, 2025 today undocked successfully and is scheduled to splashdown off the coast of California on Sunday, May 25, 2025 in the early morning hours.

SpaceX’s Dragon missions to ISS have become so routine that NASA is not even planning to live stream the splashdown, posting updates instead online. This is not actually a surprise, since NASA has practically nothing to do with the splashdown. Once the capsule undocked from ISS, its operation and recovery is entirely in the hands of SpaceX, a private American company.

For NASA, SpaceX is acting as its UPS delivery truck, bringing back to several tons of experiments. And like all UPS delivery trucks, making a delivery is not considered news.

And yet, this is a private commercial spacecraft returning from space, after completing a profitable flight for its owners! That this is now considered so routine that it doesn’t merit much press coverage tells us that the industry of space is beginning to mature into something truly real and sustainable, irrelevant to government.

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Dawn Aerospace begins offering its suborbital spaceplane to customers

Though the company has only so far flown a small prototype on low altitude supersonic test flights, the spaceplane startup Dawn Aerospace is now taking orders for those who wish to put payloads on its proposed Aurora suborbital spaceplane, targeting a first flight in late 2026.

Dawn Aerospace is taking orders now for the Aurora spaceplane for deliveries starting in 2027. The company has not disclosed pricing for the vehicle, and [CEA Stefan] Powell suggested the company would tailor pricing to each customer. He said that the company estimates, based on market research, that a per-flight price of $100,000 is “absolutely tenable,” and the price could go higher for missions with more customized flight needs. He projects Aurora could fly 100 times a year and has a design life of 1,000 flights, with a total revenue per vehicle of about $100 million.

Though the company had originally touted itself as developing an orbital spaceplane, it recently shifted its goals, at least for the present, to building a very powerful jet comparable in some ways to the X-15, capable of reaching altitudes exceeding 50 miles for short periods and short periods of weightlessness. This capability has some value, and Dawn Aerospace has decided to market it for profit, rather than wait for the orbital version that might be years away.

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Pentagon official blasts ULA’s slow Vulcan launch pace to Congress

In written testimony to Congress submitted on May 14, 2025, the acting assistant secretary of the Air Force for Space Acquisition and Integration, Major General Stephen Purdy, blasted ULA’s very slow effort to get its new Vulcan rocket operational, causing launch delays for four different military payloads.

“The ULA Vulcan program has performed unsatisfactorily this past year,” Purdy said in written testimony during a May 14 hearing before the House Armed Services Committee’s Subcommittee on Strategic Forces. This portion of his testimony did not come up during the hearing, and it has not been reported publicly to date. “Major issues with the Vulcan have overshadowed its successful certification resulting in delays to the launch of four national security missions,” Purdy wrote. “Despite the retirement of highly successful Atlas and Delta launch vehicles, the transition to Vulcan has been slow and continues to impact the completion of Space Force mission objectives.”

The full written testimony [pdf] is worth reading, because Purdy outlines in great detail the Pentagon’s now full acceptance of the capitalism model. It appears to be trying in all cases to streamline and simplify its contracting system so as to more quickly issue contracts to startups, which were not interested previously in working with the military because they could not afford the long delays between proposal acceptance and the first payments.

In the last decade it appears this process is having some success, resulting for example in the space field the launch of multiple hypersonic tests by a variety of rocket startups. Purdy’s written testimony outlines numerous other examples.

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SpaceX confirms 9th test flight of Starship/Superheavy now scheduled for May 27, 2025

Starship/Superheavy on March 6, 2025 at T-41 seconds
Starship/Superheavy on March 6, 2025 at T-41 seconds

SpaceX has now confirmed May 27, 2025 as the launch date for the ninth test flight of Starship/Superheavy out of its Starbase spaceport at Boca Chica.

The launch window opens at 6:30 pm (Central), with the live stream beginning 30 minutes earlier. The flight will attempt to refly the Superheavy booster used on flight seven. To push the booster’s limits, it will test “off-nominal scenarios” upon return, requiring for safety that it land in the Gulf of Mexico and not be recaptured by the chopsticks. (Just as I don’t change names or my language willy-nilly because leftists demand it, I won’t play Trump’s name-changing game here. The Gulf of Mexico was given that name more than two centuries ago, most likely by the early Spanish explorers, and that name has been good enough since.)

Starship meanwhile attempt the same test profile planned for the previous two flights but stymied by the failure of the spacecraft before reaching orbit. It will test a Starlink satellite deployment system, do a relight of one of its Raptor engines, and test its thermal ability to survive re-entry.

The company also released a report describing the results of its investigation into the previous launch failure on March 6, 2025.
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