News tagged with gravitational forces

Dark energy is real, say astronomers

(Phys.org)—Dark energy, a mysterious substance thought to be speeding up the expansion of the Universe is really there, according to a team of astronomers at the University of Portsmouth and LMU University ...

Sep 12, 2012
4.3 / 5 (42) 144 | with audio podcast

What is the value of G?

NIST has taken part in a new push to address a persistent and growing problem in physics: the value of G. The Newtonian constant of gravitation, used to calculate the attractive force of gravity between objects, is more than ...

Oct 28, 2014
4.9 / 5 (25) 25

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

What would it be like to fall into a black hole?

Let's say you decided to ignore some of my previous advice. You've just purchased yourself a space dragon from the Market on the Centauri Ringworld, strapped on your favorite chainmail codpiece and sonic ...

Sep 08, 2014
3.4 / 5 (32) 17