... A transit of Venus is actually a "twice-in-your-lifetime" event, because these transits occur twice during an eight-year span, with each pair separated by more than a century. The current transit pair (2004 and 2012) concludes this year. ... Watch the Transit of Venus with an Astronomy Club! ... The Astronomical Society of the Pacific manages the NASA Night Sky Network, a community of almost 400 astronomy clubs across the United States. ... Hawaii 2012: Transit of Venus Tour . June 2-7, 2012 . ...