Latest about Astronomy
Space.com headlines crossword quiz for week of Dec. 8, 2025: NASA lost contact with which Mars spacecraft this week?
Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.
When darkness shines: How dark stars could illuminate the early universe
Dark stars are not exactly stars, and they are certainly not dark.
What is the moon phase today? Lunar phases 2025
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.
Einstein's right again! Scientists catch a feasting black hole dragging the very fabric of spacetime
"This is a real gift for physicists as we confirm predictions made more than a century ago."
A spider-like scar haunts Jupiter's moon Europa — and scientists think they know why
A strange, spider-like scar on Jupiter's icy moon Europa may mark where salty water once surged up through its fractured crust.
NASA's Chandra telescope uses 'X-arithmetic' to reveal how black holes shape galaxy clusters (images)
A novel "X-arithmetic" technique reveals how black holes shape the universe's largest structures.
Astronomers capture close-up images of nova explosions on 2 dead stars in unprecedented detail
The nova eruptions come about when a white dwarf steals too much matter from a close red giant companion.
57 ways to capture a dying star: Astronomers get a glimpse of what will happen when our sun dies
"With ALMA, we can now see the atmosphere of a dying star with a level of clarity in a similar way to what we do for the sun."
