A major haul by the Kepler Space Telescope has astronomers cheering
Jupiter's Ganymede gets its own map
The difference between an asteroid and a comet was always thought fixed—but now a new paper says the two celestial bodies may be more similar than we thought
For half a century, the U.S. has been sending probes into deep space—and for half a century the appropriately named Deep Space Network has been keeping in touch...
Listen to the amazing sounds of the planets, picked up over 50 years by NASA's Deep Space Network.
Stuck in a solar system in which planets come in only two sizes—big and small—we're finally learning about all the ones in between
But that's no indication of alien life
The same heat trapping processes that are causing so much trouble on Earth once made Mars a very pleasant place
It's a comet! It's an asteroid! It's a bit of both—and it's one of the niftiest little members of the solar system
The Cassini spacecraft find yet another marvel on Saturn's moon Titan
(LOS ANGELES) — NASA's Jupiter-bound spacecraft hit a snag Wednesday soon after it used Earth as a gravity slingshot to hurtle toward the outer solar system, but...
A study of a burnt-out star 170 light years away provides more evidence of the ubiquity of water in the universe
A new study presents convincing evidence that an Earthly spacecraft is now wandering among the stars
Chemistry plus heat can lead to biology—and cometary impacts warm things up nicely
A new study reveals just how close humanity is to being an interstellar species
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