A geomagnetic storm sparked a display of auroras on the night of April 9-10. Auroras sighted as far south as Colorado! The storm may intensify later today.
Previously, only one RR Lyrae star - of many thousands known - was found to orbit in a double star system. Now astronomers have upped the tally by 2000%!
Since 1975, when Hawking showed that black holes evaporate from our universe, physicists have tried to explain what happens to a black hole's information.