The Planets are Young: 2 Earth and Mars
We continue our response to the BBC-TV series The Planets, narrated by Professor Brian Cox. In this article, we are considering the second episode, The Two Sisters: Earth and Mars.
By Russell Grigg
Originally published August, 2019
Links and show notes
The original article, The Planets Are Young: 2. Earth and Mars
Further reading: Solar System and extra-solar planets questions and answers