Gravity measurements taken by the orbiting Rosetta spacecraft show the body of comet 67 P/Churyumov-Gerasimenko is about 75 percent dust and 25 percent ice all the way through.
Although its job is to search for powerful energies emanated by distant cosmic objects, a space observatory recently turned its eye toward Earth and saw our home planet's aurora glowing brightly with powerful X-rays.
All good parties, no matter how good-natured, will inevitably leave behind some damage -- and this also rings true for young stars letting off some steam in a star-forming nebula.
Each step of the six-and-a-half hour historic spacewalk was meticulously planned.
On Thursday (Jan. 14), the European Space Agency's Mars Express orbiter is set to pay Phobos a visit in what will be the mission's closest flyby of the Martian moon this year.
A European spacecraft has spotted water ice on the surface of a comet, shedding new light on the formation and evolution of the icy object.
The odds aren’t great. Engineers don’t even know if Philae still has a working receiver and the probe could be covered in dust.
Tim Peake, the first official British astronaut to travel to the International Space Station, on Tuesday docked with the orbiting laboratory with two other spacemen.
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