Tag Archives: AAS

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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Supernova leftovers point to a messy blowup

In what sounds like a cosmic episode of “CSI,” sleuthing astronomers have figured out what touched off a stellar explosion 545 million light-years away, based on evidence left behind at the scene of the crime. An international team of astronomers … Continue reading

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Scientists seek new ways to track technosignatures

Could extraterrestrial civilizations leave their fingerprints as chlorofluorocarbons in planetary atmospheres, or the waste heat generated by industrial processes, or artificial bursts of neutrinos or gravitational waves? That’s what a vanguard of astronomers would like to find out, and they’re hoping to win … Continue reading

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Search for fast radio bursts enters a new era

A new radio telescope in British Columbia’s Okanagan Valley has detected 13 new sources of mysterious extragalactic phenomena known as fast radio bursts, including the second known source of repeated bursts. And the experiment is just barely getting started. The Canadian … 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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3-D views reveal ‘Orion’s Dragon’ in space

Spectral readings from the Orion Nebula have charted the cosmic weather patterns for powerful stellar winds that have created a bubble of material that’s 12 light-years wide, as well as a structure that’s been nicknamed “Orion’s Dragon.” The dragon shape … Continue reading

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