Have you ever wondered how a cloud stays in the sky? In a recent conversation with my friend and colleague Alan Sealls, the AMS President-Elect told me that he pondered this very question, and it ...

A conjunction is an astronomical event in which at least two planets – or, in this case, other celestial bodies – appear to our vantage from Earth to be close together in the sky. The trio of ...

When I first saw this photo sent to click2pins.com by Spangler417 from Rosenberg, I had to do a double-take. Not because it looks like a flying saucer (though it totally does), but because spotting a ...