Russia launches US satellites in third attempt

Russian and US space experts were scrambling to address a "very serious" ammonia leak outside the International Space Station that may require astronauts to perform an emergency spacewalk, a Russian official ...

The International Space Station crew Friday were preparing for an emergency spacewalk to fix a "very serious" leak of ammonia from the orbiting laboratory's power system seeping into space. ...

(Phys.org) —It's the yellowish coating on cars. It floats on ponds, blows with the spring breeze and serves as a potent irritant to allergy sufferers. Now a NASA team is targeting pollen—and its work ...

Europe's lightweight rocket, Vega, was launched from Kourou space base in French Guiana late Monday for the first mission, webcast live, since its maiden flight in February last year.

A satellite that will map the world's forests has been chosen for the seventh mission in Europe's Earth Explorer project, the European Space Agency (ESA) said Tuesday.

Governments must start working urgently to remove orbital debris, which could become a catastrophic problem for satellites a few decades from now, a space science conference heard on Thursday.

(Phys.org) —A team of researchers from the SETI Institute, the Mars Institute, NASA Ames Research Center, and the space robotics company Honeybee Robotics, has successfully completed a first series of field ...

(Phys.org) —NASA's senior Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.

On 5:24 a.m. EDT on May 17, 2013, the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon that can send billions of tons of solar particles into space that can reach Earth ...

While Apollo 17 astronauts Eugene Cernan and Harrison Schmitt visited Earth's moon for three days in December 1972, they drove their mission's Lunar Roving Vehicle 19.3 nautical miles (22.210 statute miles ...

For the past 8 years, NASA astronomers have been monitoring the Moon for signs of explosions caused by meteoroids hitting the lunar surface. "Lunar meteor showers" have turned out to be more common than anyone ...

(Phys.org) —NASA's first mission to sample an asteroid is moving ahead into development and testing in preparation for its launch in 2016.