There’s a theory that the reason life on Earth began is because billions of years ago some aliens pit-stopped on our ancient planet for a picnic, and then didn’t tidy up properly after themselves. The cosmic garbage theory, as it’s known, was first proposed by Professor Thomas Gold of Cornell University in the 1960s. It proposes that when the aliens were shaking out their picnic rug, bits of extra-terrestrial cookie crumbs landed on the ground, and the microbes within the crumbs went on to spark the genesis of life on our planet.
