Early Sunday morning, the earth's axis was pointed neither toward nor away from the sun. So spring has sprung — astronomically speaking. We dug into our archives to mark the occasion.
Scientists combined images from a camera with ultraviolet light measurements from a spectrograph to identify nine stars more than 100 times as massive as the sun.
Aerospace engineer Claudia Kessler is searching for Germany's first female astronaut. The country's previous 11 astronauts were all men, which she says highlights German sexism in the sciences.
Recently returned from a historic 340-day off-planet mission, Kelly announced Friday he will retire from NASA on April 1, but still continue to participate in research related to his experiment.
The total solar eclipse on March 9 wasn't visible anywhere in North America, but Indonesia got a perfect view. Now you can see the eclipse from the other side ... that is, the view from space.
The InSight mission, which would send a lander to detect marsquakes and study the planet's interior, was scheduled for this month. It has been delayed because a pivotal piece of equipment was flawed.
Looking from Earth, it's in an area just above where the handle of the Big Dipper meets its cup — or, if you prefer, it's just above Ursa Major's rump.
The Hubble Space Telescope photographed what scientists say appears to be the oldest galaxy ever seen. It shows a collection of stars that formed 400 years after the Big Bang.