Huge red giant star has newfound companion — and it may be a bad neighbor
"Throwing a close companion into the mix could possibly wreak further havoc on the already complicated processes surrounding these stars."
Galaxy quest: A galaxy-themed trivia quiz
Dive into the dazzling depths of the universe with this galaxy-themed trivia quiz that spans cosmic facts, mysterious phenomena, and the wild wonders of deep space.
Euclid space telescope sees gorgeous cosmic cloud | Space photo of the day for Nov. 18, 2025
This image shows Euclid's capability to explore both our cosmic neighborhood and the deep universe beyond.
As our black hole images get more detailed, we may find Einstein wasn’t quite right about them
Albert Einstein's theory of gravity, general relativity, may not be the best recipe to describe black holes.
‘Superheated’ stellar factory in the early cosmos is producing stars 180 times faster than the Milky Way
"Even though it's the first time we've seen a galaxy like this, we think that there could be many more out there."
Mars spacecraft images pinpoint comet 3I/ATLAS’s path with 10x higher accuracy. This could help us protect Earth someday
This is great news for planetary defense.
Satellite captures destructive power of Hurricane Melissa | Space photo of the day for Nov. 17, 2025
The image shows the difference in temperature between the top of a hurricane and the bottom.
How the sun threatens your nuts: Inside the $100 million solar storm peanut problem
Solar storms don't just trigger impressive auroras; they can scramble the GPS systems U.S. farmers rely on.
With more moon missions on the horizon, avoiding crowding and collisions will be a growing challenge
Experts dive into the many missions headed to the moon and how space programs can avoid override.
Space.com headlines crossword quiz for week of Nov. 10, 2025: Which hit show on Hulu was just renewed for season 2?
Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.