Astronomers just quintupled the number of known repeating fast radio bursts

A Canadian telescope spotted eight more repeating fast radio bursts. What causes these cryptic flashes of…

Stars may keep spinning fast, long into old age

NASA’s TESS telescope has spotted an old star that spins too fast for theory to explain,…

TESS has found the first-ever ‘ultrahot Neptune’

NASA’s TESS telescope has spotted a world that could be a bridge between other types of…

In a first, physicists re-created the sun’s spiraling solar wind in a lab

Some of the sun’s fundamental physics have been re-created with plasma inside a vacuum chamber

NASA’s Chandra X-ray telescope celebrates 20 years in space

The U.S. space agency has released new images for the Chandra X-ray Observatory’s 20th birthday.

India’s first lunar lander is on its way to the moon

India’s Chandrayaan-2 mission just launched, hoping to become the first Indian spacecraft to land on the…

Gaps in gas disks around stars may not always mark newborn planets

New research has prompted a rethink of the theory that gaps in planet-forming disks around young…

How NASA has kept Apollo moon rocks safe from contamination for 50 years

NASA wouldn’t let our reporter touch the Apollo moon rocks. Here’s why that’s a good thing.

Hayabusa2 may have just snagged bits of asteroid Ryugu’s insides

In its second sampling attempt, Hayabusa2 became the first spacecraft to try to pick up some…

Moons that escape their planets could become ‘ploonets’

If giant planets in other star systems lose their moons, the freed objects could become “ploonets,”…