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Listed under:  Science  >  Earth and space  >  Universe  >  Universe formation
Video

Triple J: Why is Pluto not a planet?

Watch this clip and learn why Pluto was taken off the official list of planets. Dr Karl Kruszelnicki explains the three criteria that must be met before planets can be called planets. What are they?

Video

Future of the moon

This 4 minute video segment from Catalyst describes how Moon rocks may hold clues about the beginnings of life on Earth because of the lack of weathering and erosion.

Video

Very Large Telescope

This 10 minute video segment from Catalyst explains why the telescope is located where it is and relates it to the properties of light.