The strange object entered our solar system a year ago and quickly left again. A Harvard paper discusses the possibility that it could be an alien lightsail.
The waxing moon is back in the evening sky for all of us around the globe. This weekend, it serves as your guide to the planet Saturn. Little Pluto is also nearby, invisible to the eye. Later at night, watch for the North Taurid meteor shower.
CORRECTION: This is the meteor photo Joel Coombs captured on the night of November 3, from a site south of Las Vegas, Nevada! We ran the wrong photo in Friday's EarthSky News. Sorry, Joel! Read more about the Taurids.
