Going Circles Around Saturn
  • Di Ken Croswell, Ph.D
  • Durata: 0:05:56
  • Narratore: Highlights for Children
  • Editore: Highlights

Information about Saturn's rings and a theory about how they formed.

Exploding Stars Turn Red
  • Di Ken Croswell, Ph.D
  • Durata: 0:05:41
  • Narratore: Highlights for Children
  • Editore: Highlights

Astronomers observe the formation of a red nova which occurs when two stars merge and explode.