Gravity Probe B finally pays off | Science News

SUPPORT SCIENCE NEWS

Science News is a nonprofit.

Help us keep you informed.


News

Gravity Probe B finally pays off

Orbiting experiment confirms general relativity

By
1:39pm, May 4, 2011

The longest-running project in NASA’s history has completed its mission. Gravity Probe B has finally confirmed that the Earth drags spacetime around as it rotates like a spoon twisting in a jar of honey, mission scientist announced at a May 4 NASA press briefing.

Other experiments had already confirmed this “frame-dragging” effect, predicted by Einstein’s theory of general r

This article is only available to Science News subscribers. Already a subscriber? Log in now. Or subscribe today for full access.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content