• Video
  • Shop
  • Culture
  • Family
  • Wellness
  • Food
  • Living
  • Style
  • Travel
  • News
  • Book Club
  • GMA3: WYNTK
  • Newsletter
  • Privacy Policy
  • Your US State Privacy Rights
  • Children's Online Privacy Policy
  • Interest-Based Ads
  • Terms of Use
  • Do Not Sell My Info
  • Contact Us
  • © 2025 ABC News
Asteroids range in size, with the largest one about 329 miles in diameter.
1:07
  • ABC News
  • May 4, 2023

What is an asteroid?

Asteroids range in size, with the largest one about 329 miles in diameter.

Up Next in news

Large asteroid to safely pass earth

Large asteroid to safely pass earth

March 22, 2023
Asteroids in the news: A look back at close encounters

Asteroids in the news: A look back at close encounters

March 22, 2023
Asteroid to make close encounter with Earth

Asteroid to make close encounter with Earth

January 27, 2023

The latest lifestyle and entertainment news and inspiration for how to live your best life - all from Good Morning America.
  • Contests
  • Terms of Use
  • Privacy Policy
  • Do Not Sell My Info
  • Children’s Online Privacy Policy
  • Advertise with us
  • Your US State Privacy Rights
  • Interest-Based Ads
  • About Nielsen Measurement
  • Press
  • Feedback
  • Shop FAQs
  • ABC News
  • ABC
  • All Videos
  • All Topics
  • Sitemap

© 2025 ABC News
  • Privacy Policy— 
  • Your US State Privacy Rights— 
  • Children's Online Privacy Policy— 
  • Interest-Based Ads— 
  • Terms of Use— 
  • Do Not Sell My Info— 
  • Contact Us— 

© 2025 ABC News