Tag Archives: Exoplanets

Could Barnard’s Star harbor an icy home for life?

Where’s the nearest exoplanet with conditions that are right for life? Over the past couple of years, astrobiologists have talked up Proxima Centauri b, which is sitting just 4.2 light-years away. But Villanova University astrophysicist Edward Guinan favors a world that’s … Continue reading

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Red dwarfs seem to wipe out life’s necessities

Red dwarf stars have been seen as the biggest potential frontier for alien life, in part because they’re the most common stars in our galaxy. But observations made using the Hubble Space Telescope suggest that the frontier might turn out … Continue reading

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TESS mission adds ‘sub-Neptune’ to discovery list

Less than a year after NASA’s TESS spacecraft was launched, the scientists behind the mission have unveiled their third confirmed planet, a weird alien world that’s between Earth and Neptune in size. And hundreds of additional potential finds are in the pipeline. … Continue reading

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Climate analysis checks for most livable exoplanets

If you had to pick a place to set up shop amid the seven planets in the TRAPPIST-1 star system, 39 light-years from Earth, the fourth rock from that alien sun is the best place to start. That Earth-sized world, … Continue reading

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Scientists report super-Earth at Barnard’s Star

The astronomical team that found the nearest exoplanet at Proxima Centauri has done it again with the reported detection of a super-Earth orbiting Barnard’s Star, the second-closest star system to our own. The discoverers acknowledge, however, that they’re not completely … Continue reading

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Planet-hunting Kepler telescope runs out of gas

NASA’s Kepler planet-hunting telescope now belongs to the ages, with its fuel completely spent and its instruments shut down — but the planet quest continues, thanks to a treasure trove of downloaded data as well as a new generation of robotic … Continue reading

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Hubble boosts evidence for first exomoon

With a lot of help from the Hubble Space Telescope, astronomers now feel confident enough to publish their evidence for the first moon detected in orbit around a planet beyond our solar system. But they’re still not completely confident. “At … Continue reading

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