Have burning questions about asteroids? Our experts have answers!
(Spoiler Alert: none of them will hit Earth.)
Our solar system is littered with asteroids and comets and sometimes they get a little close to Earth. When an asteroid or comet looks like it could come near our home planet, we keep close watch to warn of any potential impacts.
Here's what you need to know about how we find, track, and monitor these near-Earth objects: https://www.nasa.gov/mission_pages/asteroids/widget/index.html