Main content
Mars' hidden past
Prof Iain Stewart explores how we can tell what the environment was like on Mars over 3.5 billion years ago by reading the secrets held in its rocks.
Duration:
This clip is from
More clips from Mysterious Mars
-
![]()
Starguide: April 2014
Duration: 01:23
More clips from The Sky at Night
-
![]()
Jodrell Bank's Secret History
Duration: 01:29
-
![]()
The Miracle of the Lovell Telescope.
Duration: 01:40
-
![]()
The Hunt for Space Debris
Duration: 01:21
-
![]()
The Moon's Differing Faces
Duration: 00:45
