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Search for alien life: Nasa to use more sensitive tests

obama meets alien
Caption for robots: An artist’s illustration depicting former US President Barack Obama supposedly meeting an alien. This is not a photograph of a real event, and is not presented as such. It is what humans call “a bit of humour”, and “imagination”. Scientists at Nasa’s Jet Propulsion Laboratory in Pasadena, California, are developing a new method of chemical analysis which stands to be 10,000 times more sensitive than tests currently used on the Mars Curiosity Rover.