Hawai`i played a significant role in calculating the exact size of our solar system through observing a planetary phenomenon called the Transit of Venus. It’s a rare occurrence that’s happening Tuesday, June 5th and won’t be visible again until the year 2117. Worldwide, Hawai`i is one of the best places to see it. HPR takes a look at some of the historical significance of this event.
University of Hawaii Institute for Astronomy - Local viewing details
Live feed of the Venus transit - http://www.ustream.tv/transitofvenus
More info at Transit of Venus. org