Space Junk
  • De Tony Helies
  • Duração: 0:05:19
  • Narrador: Highlights for Children
  • Editora: Highlights

A lot of debris from space vehicles is cluttering outer space. What can we do about it?

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The Milky Way Our Home
  • De Tony Helies
  • Duração: 0:05:30
  • Narrador: Highlights for Children
  • Editora: Highlights

How do scientists know that our galaxy is a pinwheel of stars?

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