Tiny brown dwarf found floating free in space

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.

A three-year trek on Mars

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 tipped over by several collisions

Uranus was knocked on its side not by a single massive collision, as previously thought, but by a series of small thumps, researchers say.

Solar cycle can influence winter weather

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 cause mass extinction

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.

Russian space ambitions hobbled by economic reality

Moscow is abandoning plans to design and build a two-stage Rus-M carrier rocket that would have replaced the aging Soyuz by 2015.

Martian atmosphere is full of water

The Martian atmosphere contains water vapor in a supersaturated state, say surprised ESA scientists.

Crab Pulsar gamma rays baffle scientists

Scientists say the Crab Pulsar is blasting out gamma rays at a higher rate than can be explained by current scientific models.       

NASA preps instruments for Solar Orbiter mission

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.

Ozone layer found over Venus

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.

New spacecraft propulsion system ready for tests

While electric propulsion (EP) of spacecraft is already competing successfully with chemical thrusters, the cost has been extremely high.

Comets created Earth's oceans

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.

Close-up mission to sun gets green light

The European Space Agency (ESA) has approved a mission to get nearer to the sun than ever before.

Brush up that resume: NASA's recruiting astronauts

NASA's announced that, in early November, it will start looking for  its next class of astronaut candidates.

First images released from ALMA radio telescope

More than sixteen thousand feet up in Chile, the Atacama Large Millimeter/submillimeter Array (ALMA), is officially open and has released its first images.

Universe simulation is most accurate ever

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.

Unprecedented ozone hole opens over Arctic

Last year saw a significant hole open up for the first time in the ozone layer over the Arctic.

Can reusable rockets help us get to Mars?

SpaceX CEO Elon Musk has kicked off an initiative to build the world’s first completely reusable rocket and spaceship.

Messenger probe reveals Mercury surprises

Mercury's a bit weird, say NASA scientists, with a different surface composition and magnetic field to other planets.

Asteroids less threat to Earth than thought

Good news: we're not likely to get wiped out in the same way as the dinosaurs, at least not any time soon.