Once in a lifetime: Transit of Venus set for June 5-6 Summary: The planet Venus moved directly between the Earth and the sun - and will not do it again for another century. By Andy Smith | June 4, 2012 -- 13:04 GMT (06:04 PDT) Previous | Next Image 10 of 15 This is a photo of Venus approaching the blocked out sun. Topic: Nasa / Space Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.