near-earth objects

Earth's Second Moon Has Vanished, Scientists Say

Almost All Meteorites That Hit Earth Are Coming From the Same Three Places, Scientists Discover

Earth Gaining a Temporary New Moon, Scientists Say

Scientists Say Something Seems to Have Broken Off the Moon at This Crater

Debris From NASA Smashing Asteroid Could Strike Mars, Scientists Find

Strangely Shaped Asteroid Whizzes Past Earth

Incredible Videos Capture Meteor Burning Up Over European Skies

Planetary Defense Experts Complain That SpaceX-Style Satellites Make It Harder to Spot Killer Asteroids

A Giant Asteroid Is Careening So Close That You'll Be Able to See It From Earth

Scientists Complete the First International Test of Our Ability to Track Dangerous Asteroids

We Just Found Out Asteroids Are Flying by Earth This Week — Here's How Worried You Should Be