Every now and then, the star at the center of a planetary system exhausts its hydrogen supply and collapses into a red giant. As the star's outer layers expand, they encroach on planets' orbits, ...

Scientists have recently focused their telescopes on a mysterious planet drifting through space, a discovery that has ...

Starfront Observatories allows amateur astronomers to rent a spot for their telescopes and photograph the cosmos over a ...

For the first time, astronomers have witnessed the early stages of planet formation around a distant young star, HOPS-315, thanks to groundbreaking observations made using theJames Webb Space ...

NASA's Voyager 2 spacecraft captured dark streaks produced by geysers visible on the icy surface of Triton's south polar ...

On Monday (Oct. 6), the nonprofit Planetary Society held a "day of action" to urge Congress to restore NASA's science funding ...

A team of planetary scientists, ecologists, and marine biologists affiliated with several institutions in the U.S. and one in the U.K., has found evidence suggesting that parts of the world's oceans ...

There is a nonzero chance that somewhere in the nearby solar system is a rock that might kill us all. This stony assassin may well be orbiting the sun at this very moment, careening down a celestial ...

Lick Observatory’s Automated Planet Finder (above) and Shane Telescope (below) were used in the California Legacy Survey to conduct an exoplanet census. (Photos by Laurie Hatch) In the neighborhood ...

Astrophotographer Andrew McCarthy has left millions of fans in awe of his detailed, breathtaking photos of the cosmos. His recent image of the planetary parade in late January got more than 130,000 ...