Comments Subscribe to Personal Liberty News Feed Subscribe to Personal Liberty
 

Einstein’s Theory At Work In Star Pair

PASADENA, Calif. (UPI) — NASA says a space telescope witnessed a dead star bending the light of its companion star, a phenomenon predicted by Einstein’s theory of general relativity.

The observation of data from the Kepler space telescope is among the first detections of this effect in double-star systems, NASA Jet Propulsion Laboratory in Pasadena, Calif., reported Thursday.

The dead star is a white dwarf, the burned-out core of a star like the sun, and is locked into an orbital dance with a small “red dwarf” star.

While the white dwarf is the smaller of the pair, it is more massive that its partner, astronomers said.

“This white dwarf is about the size of Earth but has the mass of the sun,” Phil Muirhead of the California Institute of Technology in Pasadena said. “It’s so hefty that the red dwarf, though larger in physical size, is circling around the white dwarf.”

When the red dwarf passes behind the white dwarf, the gravity of the much more massive white dwarf causes the red star’s light to bend and brighten by minute but measurable amounts, scientists said.

“Only Kepler could detect this tiny, tiny effect,” Doug Hudgins, Kepler program scientist at NASA Headquarters in Washington, said. “But with this detection, we are witnessing Einstein’s theory of general relativity at play in a far-flung star system.”

One of the predicted effects of Einstein’s theory of general relativity is that gravity bends light, a phenomenon called gravitational lensing astronomers have used to gather evidence of dark matter and dark energy, two mysterious ingredients in the universe, and also to discover new, distant planets, JPL said.

UPI - United Press International, Inc.

Since 1907, United Press International (UPI) has been a leading provider of critical information to media outlets, businesses, governments and researchers worldwide.

Facebook Conversations

Join the Discussion:
View Comments to “Einstein’s Theory At Work In Star Pair”

Comment Policy: We encourage an open discussion with a wide range of viewpoints, even extreme ones, but we will not tolerate racism, profanity or slanderous comments toward the author(s) or comment participants. Make your case passionately, but civilly. Please don't stoop to name calling. We use filters for spam protection. If your comment does not appear, it is likely because it violates the above policy or contains links or language typical of spam. We reserve the right to remove comments at our discretion.

Is there news related to personal liberty happening in your area? Contact us at newstips@personalliberty.com

Bottom
close[X]

Sign Up For Personal Liberty Digest™!

PL Badge

Welcome to PersonalLiberty.com,
America's #1 Source for Libertarian News!

To join our group of freedom-loving individuals and to get alerts as well as late-breaking conservative news from Personal Liberty Digest™...

Privacy PolicyYou can opt out at any time. We protect your information like a mother hen. We will not sell or rent your email address to anyone for any reason.