Lake Afton Public Observatory will be open for a very special event -- the transit of Venus -- from 4:45-8 p.m. Tuesday, June 5. A transit of Venus occurs when Venus passes directly between the sun and Earth. Though it seems like this phenomenon should happen frequently, it is quite rare. Venus transits come in pairs that are eight years apart, followed by spans of more than 100 years of no transits. After the June 2012 transit of Venus, the last one in your lifetime, your great grandchildren may get to witness the next such alignment on Dec. 10, 2117. For more information, go to http://www.wichita.edu/j/?1611.