Could we see into the past? - a podcast by Dr Chris Smith

Listener David got in touch to ask about whether mirrors in space could show us what Earth was like a million years ago. Graihagh Jackson asked Cambridge's Anna Hourihane to explain how this might work... Like this podcast? Please help us by supporting the Naked Scientists

Further episodes of Question of the Week, from the Naked Scientists

Further podcasts by Dr Chris Smith

Website of Dr Chris Smith