European astronomers have discovered an Earth-sized planet right next door in the Alpha Centauri system.
NASA's Wide-field Infrared Survey Explorer, WISE, has uncovered new clues about the Jovian Trojans - asteroids that orbit the sun on the same path as Jupiter in two 'packs'.
Two amateur astronomers have discovered the first example of a planet orbiting twin suns that is itself orbited by a second distant pair of stars.
Felix Baumgartner successfully completed his record-breaking jump from the edge of space yesterday, becoming the first man to break the speed of sound in freefall.
The water found locked inside soil on the moon's surface derives from hydrogen in the solar wind - meaning there could be water on other apparently-dry bodies in the solar system too.
A meteorite that landed in the Moroccan desert 14 months ago has been traced back to Mars.
A robotic exoskeleton developed as a spin-off from NASA's Robonaut 2 project could help astronauts stay healthier in space, and paraplegics walk.
The first rock to be touched by NASA's Curiosity rover - dubbed Jake Matijevic - turns out to have a very Earth-like composition, different to anything before seen on Mars.
Astronauts venturing beyond the safety of the International Space Station (ISS) will face increased exposure to cosmic radiation.
Scientists now believe that a rocky planet twice Earth's size orbiting a nearby star can actually be classified as a diamond planet.
A completely unexpected spiral structure observed around an ancient star could offer a glimpse of what our own sun has in store.
The SpaceX Dragon capsule successfully docked with the International Space Station (ISS) earlier this morning.
Carnegie Mellon University spinoff Astrobotic Technology has now completed a full-size prototype of a solar-powered robot designed to search for water ice at the moon's poles.
The ESA's Hershel space observatory recently discovered enough water vapor to fill Earth's oceans more than 2000 times over in a gas and dust cloud that is on the verge of collapsing into a new Sun-like star.
NASA's Mars Curiosity rover has successfully collected and sampled a scoopful of sand and powdery material at the "Rocknest" site on the Red Planet.
University of Cambridge scientists have discovered a new set of enormous, rapidly growing supermassive black holes in the early universe.
The Dragon Space X commercial cargo ship was lofted into orbit aboard a Falcon 9 rocket at 8:35 p.m. EDT, putting on a spectacular show of light and thunder from the rocket's nine engines.
NASA’s Hubble Space Telescope has snapped a dazzling image of the globular cluster Messier 69, or M 69 for short.
NASA's Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy.
NASA's Curiosity rover is getting ready to take its first scoop of Martian soil.