Stream, Download and Share
Astrophysicist Neil deGrasse Tyson explains that, in the mid-1990s, researchers discovered additional objects that were small, icy, with elongated and tipped orbits just like Pluto.
This resource is audio only.
© 2016 PBS & WGBH Educational Foundation.
All rights reserved.
You must be logged in to use this feature
Assign directly to your students using the code or link above, without having them log in. Simply tell your students to go to
www.pbsstudents.org and enter the Assignment Code, or click on the Assignment URL to share the assignment as a link.