Details on the relative sizes and distances involved in yesterday's transit of Venus. #

Planet Venus, visible as a black dot, in transit across the Sun near the Victory Tower in Chittorgarh, India, on June 6, 2012. #

A girl uses a sun observation glass to watch the transit of Venus in Medellin, Colombia, on June 5, 2012. #

An amateur astronomer observes Venus in a clearing in a grove near Jena, Germany, on June 6, 2012. #

Venus in transit across the Sun, seen from in New Delhi, on June 6, 2012. #

Venus before the Sun, seen through clouds above New Delhi, on June 6, 2012. #

Venus appears as a black dot in front of the Sun, over Amman, Jordan, on June 6, 2012. #

Josh Romney and his wife Amanda Romney watch the planet Venus transit across the Sun outside Salt Lake City, Utah, on June 5, 2012. #

In the Wilhelm-Föster Observatory in Berlin, a woman points to the shadow of Venus on a projected image of the Sun, on June 6, 2012. #

The planet Venus transits at sunset, seen over the Great Salt Lake outside Salt Lake City, Utah, on June 5, 2012. #

A bird comes into land atop one of the domes of the landmark Taj Mahal as Venus begins to pass in front of the Sun, as visible from Agra, India, on June 6, 2012. #

Hong Kong skygazers use special filters on telescopes and binoculars to observe the transit of Venus along the Victoria Harbour in Hong Kong, on June 6, 2012. #

Venus in silhouette, seen between the Earth and Sun, from NASA's orbiting Solar Dynamics Observatory, on June 5, 2012. #

Residents of Sarajevo use a telescope to see Venus transiting across the Sun on June 6, 2012 outside the Bosnian capital. #

The Sun rises behind clouds over the Baltic Sea as the Venus passes in front, above Kolobrzeg, Poland, on June 6, 2012. #

Spectators at Edgewater Park watch the sun set as the planet Venus crosses the upper right portion of the star in Cleveland, Ohio, on June 5, 2012. #

Visitors observe the Venus transit from the observation deck of the Planetarium Hamburg, in Hamburg, Germany, on June 6, 2012. #

Venus, visible before the Sun despite the clouds, in New Delhi, on June 6, 2012. #

Venus in transit, seen from Los Angeles, California on June 05, 2012. #

A close view of Venus passing in front of the Sun, seen from NASA's orbiting Solar Dynamics Observatory, on June 5, 2012. #

Venus passes across the sun as it rises over the Baltic Sea in Kolobrzeg, Poland, on June 6, 2012. #

Skygazers use protective eyewear to observe Planet Venus as it passes in front of the Sun in Kolkata, India, on June 6, 2012. #

Venus is barely visible in transit across the setting Sun over the Pacific Ocean, viewed from Encinitas, California, on June 5, 2012. #