News tagged with gravitational forces

Hubble tells a tale of galactic collisions

(Phys.org) —When we look into the distant cosmos, the great majority of the objects we see are galaxies: immense gatherings of stars, planets, gas, dust, and dark matter, showing up in all kind of shapes. ...

May 13, 2013
5 / 5 (3) 0 | with audio podcast

Satellites show the way to new oil finds

A new map of the Earth’s gravitational force based on satellite measurements makes it much less resource intensive to find new oil deposits. The map will be particularly useful as the ice melts in the oil-rich ...

Feb 27, 2009
4.3 / 5 (3) 0

Laser tripod for better levitation

(Phys.org) —Physicists from The Australian National University have shown that three lasers are better than one when it comes to levitating small but visible objects on light, designing an extremely precise ...

Oct 30, 2013
5 / 5 (2) 0 | 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