News tagged with gravitational forces

Equivalence principle in space test

Since Galileo Galilei and Newton, the assumption is valid that inert and heavy mass are equivalent. This is, however, questioned by new physical theories such as the String theory. Now, the equivalence principle ...

May 11, 2009
3.9 / 5 (13) 2

Using artificial intelligence to chart the universe

(Phys.org)—Astronomers in Germany have developed an artificial intelligence algorithm to help them chart and explain the structure and dynamics of the universe around us with unprecedented accuracy. The ...

Sep 24, 2012
4.6 / 5 (10) 3 | with audio podcast

Glittering jewels of Messier 9

(PhysOrg.com) -- The NASA/ESA Hubble Space Telescope has produced the most detailed image so far of Messier 9, a globular star cluster located close to the center of the galaxy. This ball of stars is too faint ...

Mar 16, 2012
4.6 / 5 (8) 3 | with audio podcast

Planets can form in the galactic center

(Phys.org)—At first glance, the center of the Milky Way seems like a very inhospitable place to try to form a planet. Stars crowd each other as they whiz through space like cars on a rush-hour freeway. ...

Sep 11, 2012
4.9 / 5 (7) 17 | with audio podcast

A eulogy to Herschel

(Phys.org)—With its 2160 litres of liquid helium about to run out, the Herschel Space Observatory will, by the end of March, become just another piece of space junk.

Jan 02, 2013
4.4 / 5 (7) 0

Cosmology in a Petri dish

Scientists have found that micron-size particles which are trapped at fluid interfaces exhibit a collective dynamic that is subject to seemingly unrelated governing laws. These laws show a smooth transitioning ...

Jan 26, 2012
4 / 5 (7) 4