These next few days - March 25 and 26, 2021 - watch for the moon to travel in front of the constellation Leo the Lion, past the bright star Regulus, the Lion's Heart.

After 800 years of dormancy, Fagradalsfjall volcano on Iceland’s Reykjanes peninsula began a magnificent eruption on March 19. See video and images.

For the first time, scientists have found evidence for a secondary atmosphere on an exoplanet, created by volcanism beneath the surface. The planet, GJ 1132 b, is thought to have once been a sub-Neptune, but now is a rocky world the size of Earth.

A new study documents the distribution of supercell-tornado wind intensities and sizes, revealing that most are much stronger than damage surveys indicate, with more than 20% of tornadoes potentially capable of causing catastrophic EF-4/EF-5 damage.

This nocturnal owl wakes briefly during the day to have a quick look around.

Through 12 years of photographing and stitching together individual astrophotography images, Finnish astrophotographer J-P Mestavainio has created a 1.7 gigapixel panorama of our Milky Way galaxy.

In early 2020, satellite data showed a decline in air pollution coinciding with Covid lockdowns. One year later, as lockdown restrictions loosen and regular activity resumes, air pollution is bouncing back to pre-Covid levels.

A study here on Earth simulating the weightless conditions of space travel showed that the longer the participants were exposed to a low-gravity environment, the more they perceived facial expressions as angry.

Astronomers have discovered a restless supermassive black hole that's moving within its galaxy.

These next few nights - March 23 and 24, 2021 - the bright waxing gibbous moon puts the constellation Cancer in the spotlight, but out of view.