Dark matter particles might interact with each other through a 'dark' electromagnetic force
Venus and the moon will deliver a Halloween treat visible this evening just as little ghosts and goblins head out to gather candy.
NASA’s Phoenix Mars Lander regained contact with Earth more than a day after falling silent, but its days on the Red Planet are still numbered, mission managers said Thursday.
Problems with a spare part for the telescope will delay a shuttle repair mission from February to no earlier than May
A private group planning to launch a moon rover to the famed Apollo 11 landing site in a bid to win a $20 million prize announced an ambitious plan Thursday to send five more spacecraft to explore the lunar poles.
The Hubble Space Telescope is working again, taking stunning cosmic photos after a breakdown a month ago. But NASA offered some bad news Thursday about longer-term repairs for the 18-year-old telescope.
View a ghoulish gallery that includes a stellar Lord of the Rings, a spectral eel and a death mask on Mars
Meteorites that are among the oldest rocks ever found have provided new clues about the conditions that existed at the beginning of the solar system, solving a longstanding mystery and overturning some accepted ideas about the way planets form.
Nearly $1 billion may seem like a lot of money to spend on an ageing satellite, but the 11-tonne Hubble Space Telescope is no ordinary orbiter. The probe has long been the flagship of modern astronomy, returning stunning images of...