Tiny samples from Apollo moon rocks help solve an ancient myatery
The space agency's latest plan for a manned mission—including capturing an asteroid and towing it to the moon—begs crddulity
Voyager 1 entered interstellar space, and then—oops!—it didn't
It is a historic threshold: An object created by humans has exited our solar system. For years now, scientists have speculated as to when the Voyager I...
Jupiter's watery Europa may be the best bet for life elsewhere in the solar system
For 20 years, America’s Voyager spacecraft have been flying toward the edges of our solar system. TIME surveys the most notable interstellar scenes captured by...
Scientists crash a probe into a comet to discover the origins of the solar system