Please create an account to participate in the Slashdot moderation system


Forgot your password?
Last Chance - Get 15% off sitewide on Slashdot Deals with coupon code "BLACKFRIDAY" (some exclusions apply)". ×

Submission + - Kepler Discovers "Phantom" Exoplanet (

astroengine writes: "The Kepler space telescope has spotted an extra-solar planet with a very odd orbit. Sometimes Kepler-19b slows down by five minutes during its 9 day orbit. Other times it speeds up by five minutes. Johannes Kelper's laws of orbital dynamics never said a celestial body can arbitrarily speed up and slow down; another planetary body must therefore be gravitationally acting on Kepler-19b.

Enter Kepler-19c, a world that hasn't been observed, but its gravitational effects have. This is an unprecedented discovery, one that could potentially be used in multi-planetary star systems to discover more "phantom" worlds that would have otherwise gone unnoticed."

This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Kepler Discovers "Phantom" Exoplanet

Comments Filter:

Money is better than poverty, if only for financial reasons.