The science here gets really dark.
The space rock has a 4.3% chance of striking the Moon in six years—and it could generate a flash nearly as bright as Venus.
There is a lot we have yet to understand about the center of the Milky Way—could it be due to a mass of invisible dark matter?
The Artemis 2 astronauts will venture deeper into space than any human has gone before. That presents some seriously exciting research opportunities.
A large, hyperactive group of sunspots just produced its sixth X-class solar flare of the week.
If we want to colonize space, we need to figure out the whole reproduction thing.
A double sunset appears to be a true rarity in the cosmos, and general relativity explains why.
"Textbooks will need to be updated."
A hydrogen leak during the wet dress rehearsal for Artemis 2 has forced NASA to forego the February launch window and work toward March instead.
Artemis 2 could launch as early as this coming weekend. If it does, the 10-day mission will have to compete with the Olympics and Super Bowl for media attention.