Although this Tuesday may seem like every other, ordinary Tuesday, there is something very special happening right outside the stratosphere. Venus will pass directly between Earth and the Sun, an occasion that allows scientists to measure the distance between us and that big yellow ball in the sky, then scale it to measure the entire solar system. The Museum of Natural History will be conducting a live simulcast from the Mauna Kea Observatory of Hawaii, open to all. At 6:30pm, watch a special screening of "Coral: Rekindling Venus", a film that shows how the transit of Venus can be used as a rallying point for cooperation in dealing with the pressing issue of climate change. All ages.