Read all about this mysterious rock-comet, the parent body of this week's Geminid meteor shower. It'll brush past Earth on December 16, just a few nights after tonight's Geminid meteor shower peak.
The intense wildfires in southern California are triggering air quality alerts. What do health experts know about how inhaling smoke affects human health?
An EarthSky lunar calendar is sure to delight. Or give the gift that gives back! Check out the new colors and designs of our EarthSky Cares Tees. A percentage of proceeds collected will be donated to select organizations.