What's the Difference Between an Asteroid and a Kuiper Belt Object?
Two NASA scientists discuss the difference -- and similarities -- between asteroids and Kuiper Belt Objects, our solar system's most distant bodies.
On Dec. 3, 2018, NASA's OSIRIS-REx mission will arrive at Asteroid Bennu where it will spend two years surveying this relic from our solar system's beginnings before ultimately collecting a sample and returning it to Earth. Keep up with OSIRIS-REx at: https://www.nasa.gov/osiris-rex
On New Year's Day 2019, NASA's New Horizons mission will visit Kuiper Belt Object Ultima Thule, the most distant object ever explored by humankind. Keep up with New Horizons at: https://www.nasa.gov/mission_pages/ne...