It will not happen again until 2117! So you better watch it now! Starting at 3:00 pm PST Venus will cross in front of the sun and the whole thing will last about seven hours. You can’t look at the sun. So don’t do that. But you can put a little hole in a piece of paper and let the sun shine through that onto a second piece of paper so that an image is cast. As for the video feed above, it is from the Keck Observatory.