Hubble, the first telescope to revolutionize modern astronomy and change our view of the universe by offering glimpses of distant galaxies, marks its 25th year in space this week.
The universe was created 13.7 billion years ago in a blaze of light: the big bang. Roughly 380,000 years later, after matter (mostly hydrogen) had cooled enough for neutral atoms to form, light was able to traverse space ...
The best picture we have of Pluto is a blurry, pixelated blob, but that is about to change when a NASA spacecraft makes the first-ever flyby of the dwarf planet.
SpaceX's unmanned Dragon cargo ship blasted off Tuesday toward the International Space Station, carrying a load of food and supplies for the astronauts living in orbit.
SpaceX is sending its unmanned Dragon cargo ship on its sixth official supply mission to the International Space Station on Monday, should the weather behave itself.
Europe's pioneering probe Rosetta battled breakdowns with navigation and communication with Earth after it ran into blasts of dust and gas from the comet it is tracking, mission control said Thursday.
NASA is aiming to launch a rocket to an asteroid in five years and grab a boulder off of it—a stepping stone and training mission for an eventual trip sending humans to Mars.
European space managers Friday ended an eight-day vigil for a wakeup call from the robot lander Philae, but remained hopeful the scout will revive as it rides on a comet nearing the Sun.
ESA's Rosetta spacecraft has made the first measurement of molecular nitrogen at a comet, providing clues about the temperature environment in which Comet 67P/Churyumov-Gerasimenko formed.
Excitement mounted Thursday as scientists started listening for signs of life from robot lab Philae, hurtling through space perched on a comet some 460 million kilometres (285 million miles) from Earth.