EarthSky

Don Machholz visually discovered 12 comets that bear his name. He was one of the inventors of the Messier marathon, which amateur astronomers around the world use to test their skill. And he was a writer for EarthSky … and our friend. We…

A bird’s eye view of severe flooding in Whitesburg, Kentucky. Read more on the Kentucky flooding below. Image via Billy Bowling. Kentucky flooding brings death and destruction Record-breaking flooding devastated small mountain…