Take a virtual tour of the moon in all-new 4K resolution - Ultra High Def - created from data provided by NASA's Lunar Reconnaissance Orbiter spacecraft.
"The next few weeks are the last chance to observe Sirius, Orion and the Hyades in the evening sky. Then we say goodbye to our old friends of the winter skies."
Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.