Astronomers Find a Black Hole in Our Cosmic Back Yard

Just 1,600 light-years away, the black hole is the closest known to Earth. The good news:…

China Lucks Out Again as Out-of-Control Rocket Booster Falls in the Pacific

For the fourth time, the country’s space program used a 23-ton launcher that made an uncontrolled…

‘Planet Killer’ Asteroid Spotted That Poses Distant Risk to Earth

The space rock had been hidden by the glare of the sun, suggesting that more large…

China Launches Its Space Station’s Third and Final Module

Completing the Tiangong space station is the latest step in Beijing’s effort to match and eventually…

House-Hunting for Caves on Mars Has Already Started

Researchers identified nine caves on the red planet that might make suitable shelters for future astronauts. …

Requiem for the Arecibo Telescope of Puerto Rico

Until its collapse last year, the Arecibo Observatory in Puerto Rico spent six decades tuned to…

Many UFO Reports Are Just Spy Drones or Airborne Trash

Forget space aliens or hypersonic technology; classified assessments show that many episodes have ordinary explanations. …

When Meteors Shook Mars, NASA Was Listening and Watching

Scientists thought the InSight spacecraft had recorded some major marsquakes, but with another NASA mission’s help,…

How to Watch the Partial Solar Eclipse This Week

The event will be visible from Europe, northern Africa, the Middle East and Asia on Tuesday. …

Orionid Meteor Shower 2022: How to Watch It Peak in Night Skies

Thursday night into Friday morning will be one of the dates scattered throughout each year when…