The Complutense University of Madrid is a public research university located in Madrid. Founded in Alcalá in 1293, it is one of the oldest operating universities in the world. Read More
Astronomers at MIT and elsewhere have discovered a stellar binary, or pair of stars, with an extremely short orbit, appearing to circle each other every 51 minutes. The system seems to be one of a rare class of binaries known as a "cataclysmic variab ...