On Tuesday, June 5-6, 2012, many of us will get to see a rare astronomical performance. Venus will pass between the Earth and the Sun, visible as a small black dot moving across the face of the Sun. Called a “transit” by astronomers, this six-hour event will be seen in the eastern states, Europe and most of Asia. The following picks include maps showing exactly when and where, and instructions on viewing the transit safely. Never look directly at the sun.