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Can “Warp Speed” Planets Zoom Through Interstellar Space?

Saturday, March 24, 2012 17:44
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Artist’s conception of a runaway planet zooming through interstellar space. A glowing volcano on the planet’s surface hints at active plate tectonics that may keep the planet warm.
Image Credit: David A. Aguilar (CfA)

Nearly ten years ago, astronomers were stunned to discover a star that had been apparently flung from its own system and travelling at over a million kilometers per hour. Over the years, a question was brought up: If stars can be ejected at a high velocity, what about planets?

Avi Loeb (Harvard-Smithsonian Center for Astrophysics) states, “These warp-speed planets would be some of the fastest objects in our Galaxy. If you lived on one of them, you’d be in for a wild ride from the center of the galaxy to the Universe at large.”

Idan Ginsburg (Dartmouth College) adds, “Other than subatomic particles, I don’t know of anything leaving our galaxy as fast as these runaway planets.”
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Read the rest of Can “Warp Speed” Planets Zoom Through Interstellar Space? (295 words)


© Ray Sanders for Universe Today, 2012. | Permalink | No comment |
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