NASA Probe Reaches Orbit Around Dwarf Planet
NASA's Dawn mission has reached its destination and is orbiting the dwarf planet Ceres. It's the end of an odyssey to explore an odd, in-between world.
Space
ISS Spacewalkers Perform Tricky Cable, Antenna Installation
Two American astronauts at the Space Station are outside the craft for the last of three jobs aimed at paving the way to receive a new generation of crew modules beginning in 2017.
Exploring The Solar System Through The Eyes Of Robotic Voyagers
The Voyager spacecraft revolutionized our understanding of space. In a new book, The Interstellar Age, planetary scientist Jim Bell shares stories about the planning and excitement back on Earth.
Astronomers Discover A Supermassive Black Hole Dating To Cosmic Dawn
It's enormous, and it grew relatively quickly — less than 900 million years after the Big Bang.
NASA Sees 'Bright Spots' On Dwarf Planet In Our Solar System
Scientists are puzzled by a new image taken by NASA's Dawn spacecraft, which found two bright spots on the dwarf planet Ceres. The spots are noticeably brighter than other parts of the surface.
New Clock May End Time As We Know It
Scientists working to create the perfect atomic clock have a fundamental problem: Right now, on the ceiling, time is passing just a bit faster than it is on the floor.
WATCH: The Sun Like You've Never Seen It
NASA's Goddard Space Flight Center has released a video composite of some of the imagery taken over the past five years by the Solar Dynamics Observatory. It's nothing short of breathtaking.
Space Station Astronauts In Star Wars-Themed Crew Pic
First there was suited-up astronaut Leland Melvin posing with his dogs. Now, a Space Station crew set for launch in September has donned Jedi robes.
PHOTO: Rosetta Sends 'An Impressive New Perspective' On Comet
The European Space Agency probe has sent a new image of Comet 67P/Churyumov–Gerasimenko from about 77 miles away.
From The Cold Depths Of Space, A Smile Emerges
In the Hubble image of a galaxy cluster, two bright galaxies resemble eyes, NASA says, "and the misleading smile lines are actually arcs caused by an effect known as strong gravitational lensing."