How acidic is the ocean on Saturn's icy moon Enceladus? It's a fundamental question to understanding if this geyser-spouting moon could support life.
A new science satellite, the ASTRO-H X-ray Observatory, will blast into the cosmos this month with a full payload of Yale University expertise.
US satellite data suggests North Korea may have already begun fuelling a rocket it plans to launch this month in the face of international opposition, a Japanese newspaper reported Friday, citing a US defence official.
There are no large caverns inside Comet 67P/Churyumov-Gerasimenko. ESA's Rosetta mission has made measurements that clearly demonstrate this, solving a long-standing mystery.
Luxembourg positioned itself Wednesday to pioneer the potentially lucrative business of mining asteroids in space for precious metals such as gold, platinum and tungsten.
The nitrogen ice glaciers on Pluto appear to carry an intriguing cargo: numerous, isolated hills that may be fragments of water ice from Pluto's surrounding uplands. These hills individually measure one to several miles or ...
A small asteroid that two years ago flew past Earth at a comfortable distance of about 1.3 million miles (2 million kilometers) will safely fly by our planet again in a few weeks, though this time it may be much closer.
China has released hundreds of images of the moon, taken by its Chang'e 3 lander and its companion rover, Yutu. It's been 50 years since the first lunar photos were taken by astronauts on NASA's Apollo 11 mission. China is ...
In November 2014, a brave explorer on a daring mission strapped on a pair of studded boots and a hard hat, stuffed a cheese sandwich and a compass into a backpack, and leapt from a spacecraft.
NASA's solar-powered Juno spacecraft successfully executed a maneuver to adjust its flight path today, Feb. 3. The maneuver refined the spacecraft's trajectory, helping set the stage for Juno's arrival at the solar system's ...