Rain and chilly temperatures vastly at odds with record highs across the U.S. this week didn’t keep plenty of people in Juneau from indulging in free ice cream and dancing outdoors to live music ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

The two hottest days recorded on Earth occurred during the past week, which is good timing for organizers staging an expanded version of an annual climate fair in Juneau, even if Saturday’s forecast ...

A technique to cool the planet, in which particles are added to the atmosphere to reflect sunlight, would not require developing special aircraft but could be achieved using existing large planes, ...

Artist's view of exoplanet SPECULOOS-3 b orbiting its star. The planet is as big as the Earth, while its star is slightly larger than Jupiter, but much more massive. (NASA/JPL-Caltech via Courthouse ...

Astronomers have discovered an Earth-size planet orbiting an ultracool red dwarf star similar in size to Jupiter. The red dwarf, located some 55 light-years away, is 100 times less bright than the sun ...