At the Griffith Observatory in Los Angeles, hundreds gather to watch Venus pass between the Earth and the sun, which won't happen again until 2117.
Transit of Venus
This afternoon, Venus began its "transit" across the face of the sun as the planet passed directly between the Sun and Earth, a rare and spectacular sight for skywatchers. The next transit will take place in 2117.
Hobbyist astronomers brought dozens of telescopes to the lawn in front of the Griffith Observatory. Here, CNET's Daniel Terdiman hold a filter of No. 14 welder's glass, which provided a perfect viewing filter.