Black holes can accumulate planets and stars’ worth of material, but even they have their limits. Astronomers have discovered a supermassive black hole which has reached that limit. Excess material
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The Overview Effect: Astronaut Perspectives from 25 Years in Low Earth Orbit
To see Earth from space is to be forever changed by the view. Since Alan Shepard became the first American to lay eyes on our home planet from above, countless
Germany outlines military space priorities in new strategy
BREMEN, Germany — A new German military space policy outlines the ambitions the country has fueled by tens of billions of euros of new spending over the next several years.
SpaceX launches 28 Starlink satellites on new Falcon 9 rocket from California
SpaceX introduced a new Falcon 9 rocket into its fleet on Sunday (Nov. 23), with he launch of 28 satellites for its Starlink megaconstellation in low Earth orbit. The launch,
Space.com headlines crossword quiz for week of Nov. 17, 2025: What does the I in comet 3I/ATLAS stand for?
Every week, Space.com delivers the latest discoveries, launches, and cosmic curiosities from across the universe. From groundbreaking research aboard the International Space Station to dazzling new images from the James
'The Second World' shows how humanity makes mistakes in futuristic society
What happens when humanity finally builds a civilization on another planet, and immediately repeats its old mistakes? That question drives ‘The Second World’, the sharp, satirical debut from writer Jake
How a medieval Oxford friar used light and color to find out what stars and planets are made of
This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. During the 1240s, Richard Fishacre, a Dominican friar at Oxford
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You’re probably aware that most of the matter of the Universe is “dark matter,” and astronomers still don’t know what it is. But 75% of the regular matter in the
WASHINGTON — President Trump has officially nominated Space Force Gen. Michael Guetlein to serve as “direct reporting program manager for Golden Dome for America,” the Defense Department announced June 18.
The half-lit lunar disk will rise alongside the ringed giant Saturn and dimmer Neptune in the early morning hours of June 19, putting on a spectacular show just six hours
PARIS — Firefly Aerospace says it plans to offer a commercial lunar imaging service for use by governments and companies, one that could supplement or replace an existing, but aging,
If our solar system seems stable, it’s because our short lifespans make it seem that way. Earth revolves, night follows day, the moon moves through light and shadow, and the
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources
China brought two spacecraft together high above Earth as part of a refueling demonstration mission, according to a space situational awareness company. China’s Shijian-21 and Shijian-25 satellites had been moving
TAMPA, Fla. — Local regulators have approved Ukrainian telco Kyivstar’s plans to start testing space-enabled texting services this summer using SpaceX’s Starlink constellation, targeting areas crippled by Russian strikes and
Look to the west on the nights following June 18 to see Mars sweep past the bright star Regulus to enter the Spring Triangle – a formation of three prominent
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