Life in these star-systems could have spotted Earth

Scientists at Cornell University and the American Museum of Natural History have identified 2,034 nearby star-systems—within the small cosmic distance of 326 light-years—that could find Earth merely by watching our pale ...

Aging stars provide a new cosmological yardstick

Despite a century of measurements, astronomers can't agree on the rate at which the universe is expanding. A technique that relies on measuring distances to a specific type of aging star in other galaxies—called the J-region ...

A new way to look for life-sustaining planets

It is now possible to capture images of planets that could potentially sustain life around nearby stars, thanks to advances reported by an international team of astronomers in the journal Nature Communications.

Space weather discovery puts 'habitable planets' at risk

A discovery that links stellar flares with radio-burst signatures will make it easier for astronomers to detect space weather around nearby stars outside the Solar System. Unfortunately, the first weather reports from our ...

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