News tagged with exoplanets

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Explained: Transiting exoplanets

In the quest to find life elsewhere in the universe, planetary scientists have detected more than 500 planets outside the solar system, or exoplanets, over the past 15 years. About one-fifth of those were ...

Jan 27, 2011 3.3 / 5 (3) 3

Planet affects a star's spin

The discovery of a hot Jupiter exoplanet that transfers orbital momentum to its host star may hold the key to a clearer understanding of the evolution of common planetary systems, according to findings presented ...

Jan 13, 2011 4.3 / 5 (6) 4 | with audio podcast

Learning from hot Jupiters

The possibility of discovering a planet that is small, cool, rocky, orbiting a sunlike star and able to host life -- an Earth twin, in other words -- has made the search for planets outside of our solar ...

Dec 15, 2010 5 / 5 (1) 5

Water-Ice Super-Earths

A "super-Earth" is a planet around another star (an "exoplanet") whose mass is less than about ten times that of the Earth. Of the 480 or so extrasolar planets now known, most have masses larger than the mass ...

Aug 27, 2010 4.7 / 5 (17) 0 | with audio podcast

Plentiful and Potential Planets

Two planet-hunting telescopes - CoRoT and Kepler - are keeping astronomers hard at work cataloging far-distant planets that orbit other stars in our galaxy. The search for distant planets is essential for ...

Jun 23, 2010 5 / 5 (6) 0