Panspermia: did life on Earth come from space? – Part 4, in films, TV & books

Panspermia is the idea that life could travel between stars seeding habitable planets as it passed, a bit like a galactic infection.

In previous posts I looked at the traditional bacterial view of panspermia, then some more extreme views, such as  aliens deliberately seeding the Earth with life, and I looked at a recent claim from a NASA scientist that he had found evidence for panspermia, in the form of fossilized bacteria in three meteorites.

In the final post of this series I’ll take a more light-hearted approach, and look at some of the best panspermia ideas in films, TV and books.