Want to watch better-quality PBS Video? Sign in to access higher-quality streaming!

When you sign in, you'll become a PBS Insider and we'll share your contact information with your local PBS station. You may receive updates to help you stay connected with what's happening online and in your community. Privacy Policy

Closed Captioning Settings
×

Preview

Captions look like this

Captions size

  • 15

Captions font family

Edge style

Captions color

Background color

Window color

Text Opacity

  • 100%

Background Opacity

  • 100%

Window Opacity

  • 0%
  • Save Settings
  • Reset

COMET ENCOUNTER

Preview

  • Aired: 11/20/2013
  • Rating: E
In this program, scientists around the world follow a once-in-a-lifetime event, the path of the sun-grazing comet ISON. The comet, somewhere between one and 10 kilometers in diameter, is currently just beyond the orbit of Jupiter. As it races past Earth toward the sun, it will likely develop a tail to light up the night skies.
Embed Options
Close ×
Preview
Preview
Follow a once-in-a-lifetime event — Comet ISON’s brush with the sun.
Width:
Height:
Please copy this text to your clipboard.
Problems Playing Video ?
Related Links:

PBS KIDS

Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Downton Abbey Collection

Bring home the complete collection: DVDs, Blu-rays, books, gifts and more. Visit ShopPBS.

Donate

helps all of us explore new worlds and ideas. Give Now

Sponsored Links