News tagged with extrasolar planetary systems

Nearing one thousand exoplanets

A quiet milestone in modern astronomy may soon come to pass. As of today, The Extrasolar Planets Encyclopedia lists a current tally of 998 extrasolar planets across 759 planetary systems. And although various ...

Oct 21, 2013
4.6 / 5 (9) 3

How common are earth-moon planetary systems?

Sebastian Elser, Prof. Ben Moore and Dr. Joachim Stadel of the University of Zurich, Switzerland, in cooperation with Ryuji Morishima of NASA's Jet Propulsion Laboratory, tried to estimate how common Earth-Moon ...

Sep 18, 2011
4.9 / 5 (15) 20 | with audio podcast

Building a new planet

(PhysOrg.com) -- Astronomers over the past decade have made remarkable progress in the study of extrasolar planets; over 500 distant worlds are now confirmed. Meanwhile, as this active research community continues ...

Jan 04, 2011
4.6 / 5 (10) 7 | with audio podcast

A New Way to Find Earths

Astronomers have used a completely new technique to find an exotic extrasolar planet. The same approach might even be sensitive enough to find planets as small as the Earth in orbit around distant stars.

Jul 09, 2010
4.9 / 5 (22) 5 | with audio podcast

Astronomers discover 'tilted planets'

(PhysOrg.com) -- University of Exeter, UK, research has added to a growing evidence that several giant planets have orbits so tilted that their orbits can be perpendicular or even backwards relative to their ...

Dec 22, 2009
4.4 / 5 (17) 4