惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
月光博客
月光博客
爱范儿
爱范儿
The Cloudflare Blog
Y
Y Combinator Blog
B
Blog RSS Feed
Stack Overflow Blog
Stack Overflow Blog
博客园 - 叶小钗
G
Google Developers Blog
J
Java Code Geeks
P
Proofpoint News Feed
美团技术团队
Engineering at Meta
Engineering at Meta
腾讯CDC
Cyber Security Advisories - MS-ISAC
Cyber Security Advisories - MS-ISAC
博客园_首页
WordPress大学
WordPress大学
博客园 - 聂微东
雷峰网
雷峰网
有赞技术团队
有赞技术团队
L
LangChain Blog
N
Netflix TechBlog - Medium
让小产品的独立变现更简单 - ezindie.com
让小产品的独立变现更简单 - ezindie.com
博客园 - 【当耐特】

Scientific American

Former deputy surgeon general Erica Schwartz nominated as new CDC chief NASA Artemis II astronauts say thank you to the world Congress grills RFK, Jr., about vaccines and cuts to health budget How the Grand Canyon formed is a surprisingly messy story. Here's the latest clue How far from humanity were the astronauts of Artemis II? The answer will surprise you Effect of antiamyloid Alzheimer’s drugs ‘absent or trivial,’ Cochrane review finds The Trump administration is looking to experts to weigh in on peptides When a naked mole rat queen dies, that usually means war—but not for this colony NASA needs nuclear power for its moon base. Here’s the White House plan to get it Why do older people have fewer seasonal allergies? 250-million-year-old fossil proves mammal ancestors laid eggs A face-swapping illusion can unlock childhood memories 30 years of Pokémon—how the Japanese franchise mirrors real-world science Sperm whales may make their own vowel sounds, similar to human language Colombia will euthanize Pablo Escobar’s invasive ‘cocaine hippos’ NASA’s Artemis III will pit SpaceX against Blue Origin The East Coast could see blazing hot temperatures this week. Here’s why Scientists just discovered 5.6 million bees under a New York State cemetery The real science of Pokémon How chemists engineer the signature smells of luxury perfumes How two mathematicians solved a cryptography mystery The engineering marvels hidden inside six-figure watches Expensive versus affordable binoculars—what’s the difference? How physicists found a new type of magnet hiding in plain sight A hot pair of supplements, creatine and methylene blue dye, may not work together Unlikely paths to discovery The baffling ecological disaster that's killing America’s freshwater mussels Poem: ‘How I Became a Spitfire Pilot during My Cataract Operation’ DARPA built an AI to fact-check enemy weapons claims Mathematicians created an ‘impossible’ shape that shouldn’t exist
Watch SpaceX launch Starship V3—the tallest and most powe...
Claire Cameron · 2026-05-21 · via Scientific American

Friday’s flight could be the most pivotal test of the Starship megarocket

By Claire Cameron edited by Clara Moskowitz & Lee Billings

A rocket blasting off against a gray sky with a cloud of exhaust below it

SpaceX’s Starship lifts off from Starbase in Texas on March 6, 2025.

RONALDO SCHEMIDT/AFP via Getty Images

Updated

May 22, 2026

at

10:00 AM

SpaceX is gearing up to launch the latest and largest version of its Starship megarocket. Lifting off from the company’s Starbase compound in Texas no earlier than 6:30 P.M. EDT tonight, the launch marks the 12th test of Starship and the first demonstration of its V3 design. Lift off was originally slated for Thursday, however a problem with the hydraulic pin holding the launch tower arm in place; SpaceX scrubbed the attempt with just seconds to go.

“For those who think this is simply another repeat test flight, the engineering changes under the rocket ‘hood’ are substantial,” says Joseph Gonzalez, an associate professor of practice in aerospace engineering at the University of Illinois Urbana-Champaign and a former engineer for NASA’s Artemis program. “V3 is taller, exceeds 18 million pounds of total thrust and introduces the new Raptor 3 engines,” he explains.

Fully stacked on top of SpaceX’s Super Heavy booster, the vehicle stands some 408 feet (124 meters) tall and is designed to loft about 100 metric tons of cargo into orbit. Like all SpaceX rockets, it’s meant to come back down to Earth to be reused again and again.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


“The booster architecture has also evolved significantly,” Gonzalez says. “The vehicle moves from four steering grid fins to three much larger and structurally reinforced fins positioned lower on the booster for improved control authority and thermal robustness.” All of these features and more changes to the rocket’s internal and external design will be tested on this flight, he says.

SpaceX’s livestream of the liftoff will begin approximately 45 minutes before the launch window opens at 6:30 P.M. on Friday, May 22. You can watch it on SpaceX’s site or on X.

The suborbital test is aimed at showing that Starship V3 can successfully launch, separate from its booster and then splash down in the Indian Ocean—it is not going to assess the vehicle’s reusability, although SpaceX hopes Starship will eventually be reusable. Along the way, the spacecraft will release 20 dummy Starlink Internet satellites, as well as two operational Starlink satellites that will test hardware for an upcoming Starlink model. These working satellites will scan Starship’s heat shield and beam images back to Earth. The company also hopes to relight one of the Starship’s Raptor engines while in space.

On reentry, the spacecraft will perform a series of maneuvers, including a flip, on its way to splash down into the Indian Ocean (the booster, meanwhile, will drop into the Gulf of Mexico).

It’s a critical moment for SpaceX. Elon Musk’s company could go public in the next month, and a successful test flight of what Musk says will be its most powerful rocket ever will almost certainly buoy investors’ interest in SpaceX—and NASA’s ambitions of using Starship to get astronauts back on the moon by 2028.

“Whether the mission achieves every objective or not, flights like this continue to push the aerospace industry forward and provide invaluable lessons for the next generation of engineers entering the field,” Gonzalez says.

During SpaceX’s livestream of Thursday’s abortive launch attempt, the company also announced another hope pinned to Starship’s success: The dream of a Chinese-born cryptocurrency billionaire, Chun Wang, to ride the vehicle on a two-year interplanetary voyage to fly by Mars. Wang previously flew with SpaceX last year alongside three other crew members on his privately funded Fram2 mission, the first-ever spaceflight to send humans into polar orbit around Earth.

The announcement didn’t disclose the timeline for that launch or other details, but did reveal that the prospective mission would be preceded by another Starship flight carrying Wang around the moon. Wang would be accompanied by others, including pioneering “space tourist” Dennis Tito and his spouse, Akiko Tito, who purchased tickets for the flight in 2022.

A previously planned private lunar mission for Starship, called Dear Moon, had been targeted to launch as early as 2023. The project was cancelled when its backer, the Japanese billionaire Yusaku Maezawa, grew tired of waiting for SpaceX to sort out technical difficulties with its audacious rocket.

Editor’s Note (5/22/2026): This story has been updated.

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.