Einstein Unruffled: Relativity passes stringent new tests | Science News



Support credible science journalism.

Subscribe to Science News today.


Einstein Unruffled: Relativity passes stringent new tests

1:32pm, November 20, 2007

By tracking the moon's location to within 1 centimeter, astronomers have put general relativity, Albert Einstein's theory of gravity, to a stringent new test. The theory stood up. In a separate experiment, physicists reconfirmed Einstein's older predictions on the stretching of time.

While both general relativity and quantum theory so far fit experimental data very well, their incompatibility makes physicists believe that at small scales either one of them or both must be wrong. Scientists constantly work to improve the sensitivity of their experiments to violations that might point to a new "theory of everything."

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content