May 29, 2012. The planet Venus will cross the face of the sun June 5-6, creating a small dot as it moves. The event will be visible, weather permitting, June 5 in North America. The next transit of the planet won’t occur until 2117. Astronomers at Appalachian State University will answer questions about the Transit of Venus from 6 to 8 p.m., Tuesday, June 5, at the Rankin Science Observatory on campus where eight filtered telescopes will be available for the public to safely view the planet as it crosses the sun.