FILE - This June 8, 2004 file photo shows the transit of Venus, which occurs when the planet Venus passes between the Earth and the Sun, is pictured in Hong Kong. (AP Photo/Vincent Yu,File)
Stargazers all over the world are setting up special telescopes and passing out cardboard eclipse glasses to view a once-in-a-lifetime celestial cameo -- Venus passing in front of the sun.
The transit of Venus is a planetary spectacle that won't occur again until 2117. The Earth's second nearest neighbor won't significantly block the sun's light, but it will give our closest star a moving beauty mark.
The transit is happening during a 6-hour, 40-minute span starting after 6 p.m. EDT in the United States. What you can see and for how long depends on what the sun's doing in your region during that exact window.
Sunny spots in Hawaii, Alaska, eastern Australian and eastern Asia will get the whole show.