Is There a Black Hole in Our Backyard?

Astrophysicists have recently begun hatching plans to find out just how weird Planet Nine might be. …

These Black Holes Shouldn’t Exist, but There They Are

On the far side of the universe, a collision of dark giants sheds light on an…

How Do You Solve a Moon Mystery? Fire a Laser at It

Researchers have used reflective prisms left on the moon’s surface for decades, but had increasingly seen…

Did Betelgeuse Sneeze?

The mysterious dimming of the red supergiant is the result of a stellar exhalation, astronomers say. …

Perseid Meteor Shower: Watch It Peak in Night Skies

Meteor showers can light up night skies from dusk to dawn, and if you’re lucky you…

Amazon Satellites Add to Astronomers’ Worries About the Night Sky

The F.C.C. approved the company’s 3,236-satellite constellation, which aims to provide high-speed internet service around the…

A Star Went Supernova in 1987. Where Is It Now?

Astronomers might have found the ultradense remnant of an explosion that wracked a nearby galaxy. …

Private Boats Enter SpaceX Splashdown Area, Raising Concerns

“We need to do a better job next time” of securing the area, the NASA administrator,…

NASA Astronauts Safely Return to Earth: ‘Thank You for Flying SpaceX’

Bob Behnken and Doug Hurley returned to Earth in the first water landing by an American…

SpaceX Crew Dragon and Astronaut Return: When to Watch

Bob Behnken and Doug Hurley left the space station on Saturday night, preparing for a Gulf…