Community | May 05, 2011 | 2 comments

Einstein Theories Confirmed by NASA Gravity Probe Launched in 2004

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"Ker Than

for National Geographic News

Published May 5, 2011

Two key predictions of Albert Einstein's general theory of relativity have been confirmed by NASA's Gravity Probe B mission, scientists announced this week.

"We've completed this landmark experiment testing Einstein's universe, and Einstein survives," principal investigator Francis Everitt, of Stanford University in California, said during a press briefing.

(Also see "Einstein's Gravity Confirmed on a Cosmic Scale.")

Launched in 2004, the Gravity Probe B mission used four ultraprecise gyroscopes—devices used to measure orientation—housed in a satellite to measure two aspects of Einstein's theory about gravity."

Full story and link to probe report:
http://news.nationalgeographic.com/news/2011/05/110505-einstein-theories-confirm...
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