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| NASA detects planet dancing |
| NASA detects planet dancing with a pair of stars
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| UNITED STATES OF AMERICA
, 16-September-2011
9:22:38 AM |
| Sometimes the orange sun rises first. Sometimes it is the red one, although they are never far apart in the sky and you can see them moving around each other, casting double shadows across the firmament and periodically crossing right in front of each other.
Such is life, if it were possible, on the latest addition to the pantheon of weird planets now known to exist outside the bounds of our own solar system. It is the first planet, astronomers say, that has been definitely shown to be orbiting two stars at once, circling the pair - which themselves orbit each other tightly - at a distance of some 65 million miles.
A team of astronomers using NASA's Kepler planet-hunting spacecraft announced the discovery on Thursday in a paper published online in the journal Science, in a talk at a conference in Jackson Hole, Wyoming, and in a news conference at NASA's Ames Research Laboratory in Mountain View, California, Kepler's headquarters.
The official name of the new planet is Kepler 16b, but astronomers are already referring to it informally as Tatooine, after the home planet of Luke and Anakin Skywalker in the George Lucas Star Wars movies, which also had two suns.
"Reality has finally caught up with science fiction," said Alan P. Boss of the Carnegie Institution, a member of the research team.
Indeed, John Knoll, who is a visual effects supervisor at Industrial Light & Magic, which is part of Lucasfilm, and who worked on several of the Star Wars movies, joined the Ames news conference and showed a clip from the original movie.
"Again and again we see that the science is stranger and weirder than fiction," Mr. Knoll said. "The very existence of this discovery gives us cause to dream bigger."
While some double-star systems, of which there are billions in the galaxy, have been suspected to harbour planets, those smaller bodies have never been seen.
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