Funny old world: the week's offbeat news

Big bang theory Unbounded joy for Elon Musk and everyone who would like to see him go off to populate Mars. Scientists have shown that sperm can find a way even in the weightlessness of space and that certain super sperm actually thrive there as lesser seed shrivel. Australian researchers found that while half of sperm struggled to get through a zero gravity "obstacle course" they built on Earth, those that made it seemed to produce better quality embryos. Which is great news for those who dream of a new interstellar super race.