Tom Lowe is a gifted videographer who makes gorgeous time-lapse videos. We showed you his previous one of the Milky Way. This one is from his short film "Southwest Light" and it's beautiful. We loved particularly loved the cactus shot, but didn't quite know why. Discover's Phil Plait helps us out: in the sky behind the cactus are the Pleiades, Orion, and Sirius.