Main content
Valles Marineris on Mars
Professor Brian Cox describes how the Grand Canyon on Earth measures up to Valles Marineris on Mars.
Duration:
This clip is from
Featured in...
![]()
Astronomy Finder
Watch Solar System video clips from the BBC Archive.
More clips from Dead or Alive
![]()
Tracking killer asteroids
Duration: 03:16
![]()
Olympus Mons on Mars
Duration: 04:45
![]()
Volcanoes on Io
Duration: 05:21
![]()
Venus compared with the Earth
Duration: 06:16
More clips from Wonders of the Solar System
![]()
Mars methane life clue—Original Series, Aliens
Duration: 03:27
![]()
Tracking killer asteroids—Original Series, Dead or Alive
Duration: 03:16
![]()
Life in Europa's underground ocean?—Original Series, Aliens
Duration: 04:16
![]()
Life in ice—Original Series, Aliens
Duration: 04:52
