Astronomers have found a 'failed star', or brown dwarf, only six times the size of Jupiter, along with two dozen others that float free in space.
NASA has released a movie based on 309 images that were taken by the Mars Exploration Rover Opportunity as it traveled from Victoria crater to Endeavour crater - a 13 mile trek which lasted three years.
Uranus was knocked on its side not by a single massive collision, as previously thought, but by a series of small thumps, researchers say.
British scientists say they've established a link between the sun's 11-year cycle and cold winters in Northern Europe and parts of America.
Short gamma ray bursts could be more damaging to life on Earth than longer ones, says a Washburn University astrophysicist who's been studying data from the SWIFT satellite.
Moscow is abandoning plans to design and build a two-stage Rus-M carrier rocket that would have replaced the aging Soyuz by 2015.
The Martian atmosphere contains water vapor in a supersaturated state, say surprised ESA scientists.
Scientists say the Crab Pulsar is blasting out gamma rays at a higher rate than can be explained by current scientific models.
NASA is currently developing a Solar Orbiter Heliospheric Imager (SoloHI) and Heavy Ion Sensor (HIS). Both instruments will be placed on the European Space Agency’s newly selected Solar Orbiter mission.
ESA’s Venus Express spacecraft has found an ozone layer high in the atmosphere of Venus, in a discovery which could help with the search for life on other planets.
While electric propulsion (EP) of spacecraft is already competing successfully with chemical thrusters, the cost has been extremely high.
Earth's oceans could once have been giant icebergs floating through space, an ESA team has concluded, after examining the isotopic composition of a comet.
The European Space Agency (ESA) has approved a mission to get nearer to the sun than ever before.
NASA's announced that, in early November, it will start looking for its next class of astronaut candidates.
More than sixteen thousand feet up in Chile, the Atacama Large Millimeter/submillimeter Array (ALMA), is officially open and has released its first images.
Scientists at the University of California, Santa Cruz have used a NASA supercomputer to create what they say is the most accurate and detailed simulation of the universe ever.
Last year saw a significant hole open up for the first time in the ozone layer over the Arctic.
SpaceX CEO Elon Musk has kicked off an initiative to build the world’s first completely reusable rocket and spaceship.
Mercury's a bit weird, say NASA scientists, with a different surface composition and magnetic field to other planets.
Good news: we're not likely to get wiped out in the same way as the dinosaurs, at least not any time soon.