Perhaps it’s the biggest question science has left to answer, how did life begin? Now, molecular biologists in Cambridge university have discovered tiny molecules of RNA which they say might provide some clues. Science journalist and author Philip Ball explains what we know and whether we’ll ever find the origins of life on earth.
Sources said the government had set up a "huge operation" which had at times seemed "hostile and difficult" to the inquiry.
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When is Stuff Your Kindle Day? The Sapphic Shelf Explosion takes place on Feb. 26.