News tagged with gravitational forces

A galaxy cluster gets sloshed

(PhysOrg.com) -- Like wine in a glass, vast clouds of hot gas are sloshing back and forth in Abell 2052, a galaxy cluster located about 480 million light years from Earth. X-ray data (blue) from NASA's Chandra ...

Dec 14, 2011
4.5 / 5 (4) 2 | with audio podcast

New planet discovered in Trinary star system

Until recently, astronomers were highly skeptical of whether or not planets should be possible in multiple star systems. It was expected that the constantly varying gravitational force would eventually tug ...

Jul 14, 2011
4.7 / 5 (24) 4 | with audio podcast

Robots, astronauts and asteroids

(PhysOrg.com) -- NASA has its sights set on asteroid exploration, which is just as tricky as it sounds. An asteroid has little gravitational force, which rules out walking on one. Anchoring to the surface ...

May 24, 2011
5 / 5 (1) 0

SLoWPoKES

The Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars (SLoWPoKES) catalog was recently announced, containing 1,342 common proper motion pairs (i.e. binaries) – which are all low mass stars in the ...

May 16, 2011
4.3 / 5 (6) 2

Milky way sidelined in galactic tug of war

(PhysOrg.com) -- The Magellanic Stream is an arc of hydrogen gas spanning more than 100 degrees of the sky as it trails behind the Milky Way's neighbor galaxies, the Large and Small Magellanic Clouds. Our ...

Sep 29, 2010
4.9 / 5 (14) 0 | with audio podcast