A Neptune-size planet beyond the solar system has telltale traces of water vapor in its atmosphere, making it the smallest exoplanet known to have the wet stuff yet, scientists say.
Exoplanet hunters have just made it easier to identify alien Venuses, in the hopes that doing so will lead to the discovery of more alien Earths.
Seeking out alien biosignatures in exoplanetary atmospheres will be a key priority for the next generation of space telescopes. Continue reading →
'We used to look up in the sky and wonder at our place in the stars. Now we just look down and worry about our place in the dirt.' -- Matthew McConaughey Continue reading →
A double star system with misaligned protoplanetary disks around 450 light-years from Earth has been discovered, potentially explaining why some exoplanet orbits can be wildly eccentric. Continue reading →
NASA's Kepler and Spitzer space telescopes have teamed up to precisely measure one exoplanet's vital statistics -- from 300 light-years away. Continue reading →
Telltale pollution could reveal ET, study shows
A newfound alien planet is one for the record books.
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