An Unexpected Discovery On The Surface Of Rosetta's Comet

Scientists have presented their initial observations of Comet 67P/Churyumov-Gerasimenko in seven articles published Thursday in the journal Science. Among the more surprising finds: images of ripples and dunes on the comet's surface, unexpected given that the comet lacks an atmosphere (and therefore wind) and… » 1/22/15 3:30pm Thursday 3:30pm

Here's How Close SpaceX Came To Landing A Rocket On A Barge In The Ocean

On Saturday, SpaceX tried to land its reusable Falcon 9 rocket on an autonomous spaceport drone ship in the Atlantic Ocean. But the rocket came in a little too hot, and the touchdown was more impact than landing. Now, SpaceX has released footage of the landing attempt, as shot from the landing barge. » 1/16/15 3:50pm 1/16/15 3:50pm

Here's What It Looks Like To Fall To Titan From Space

In honor of the Huygens probe's historic 2005 landing on the surface of Titan (Saturn's largest satellite, and the only moon in our solar system with a dense atmosphere), NASA has released a movie that recreates, with data collected by Huygens and the Cassini orbiter, a dramatic approach of the moon's surface from… » 1/14/15 2:30pm 1/14/15 2:30pm

ISS Crew Evacuated To Russian Side After Ammonia Leak Alarm [UPDATED]

The ISS crew was evacuated over to the Russian side of the space station after an alarm indicated an ammonia leak began to sound this morning. But there's likely no leak, says NASA, and the issue may be simply a faulty sensor. All crew members are safe, though remaining on the Russian side for now. [UPDATE: The… » 1/14/15 7:20am 1/14/15 7:20am

We've Been Wrong About Saturn's Exact Location For Centuries

Looking at a map of our solar system, you might have felt comfortable saying that we know (and have known for sometime) exactly where Saturn is. But a brand new ultra-precise measure that tracks the location of the planet to its exact pinpoint in space shows that we've been off, by perhaps up to 100 miles. » 1/12/15 9:40am 1/12/15 9:40am