This is a very brief video about a marvelous friendship between a Cheshire cat grin of a moon and what looks like his comet buddy chasing after him.
Really, this is just the moon doing its lunar phases thing and PANSTARRS, officially known as C/2011 L4, one of the first big comets of 2013. Photographer Dan Finnerty filmed the comet on the Verdugo Hills near Los Angeles on March 12, 2013. The sky is also showing off with some super pretty rainbow/Rothko shading.
[Wired]