Satellite sees Antarctic ice shrink to 3rd-lowest max ever | Space photo of the day for Nov. 24, 2025
This is not good news for the future of our planet.
Space.com headlines crossword quiz for week of Nov. 17, 2025: What does the I in comet 3I/ATLAS stand for?
Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.
How a medieval Oxford friar used light and color to find out what stars and planets are made of
Contemporary astrophysics has, of course, vindicated Fishacre's position
Does the universe have extra dimensions hiding in plain sight?
While the existence of extra dimensions is a cool idea, it's currently not supported by any evidence
Scientists get 1st good look at a ‘vampire star’ feeding on its victim
"If you were able to stand somewhat close to the white dwarf's pole, you would see a column of gas stretching 2,000 miles into the sky, and then fanning outward."
Astronomers finally explain the strange physics of ghostly ‘radio relics’ in space
A new set of computer simulations may finally explain several long-standing mysteries surrounding gigantic radio "relics" that appear when galaxy clusters collide.
How did this 20-light-year-wide ‘Diamond Ring’ form in space? Maybe a cosmic bubble burst
"All that remained was the particular flat shape."
James Webb Space Telescope spots a gassy baby galaxy throwing a tantrum in the early universe
The astronomers estimate that this galaxy will deplete itself of gas in only a few hundred million years.
James Webb Space Telescope spots rapidly feeding supermassive black hole in the infant universe: ‘This discovery is truly remarkable.’
"This challenges our understanding of black hole and galaxy formation in the early universe."
Earth and Theia smashed to birth the moon, but did they first start out as close neighbors?
"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system. Earth and Theia are likely to have been neighbors."