One Third of the World’s Population Unable to See Milky Way
Among my fondest memories of being a kid back in the 1960’s was taking a week or so of summer vacation to visit relatives at my grandfather’s farm in Herman, PA (about 65 km northeast of Pittsburgh). During my stay I would spend evenings lying on the freshly cut grass of my grandpa’s back yard, just looking up into […]
Slumbering Giant Black Hole Awakes After 26 Years
Some 8,000 light years from Earth, in the constellation Cygnus, a binary system known as V404 Cygni has come to life for the first time in 26 years. While most binary systems consist of two stars orbiting a common center of mass, V404 Cygni is made up of a black hole and a star that […]