Description and explanations of astronomical phenomena and measurements related to the Solar System and exoplanets. Structure and evolution of planetary systems. Formation of solar systems and planets ...
Last night at 2:17 AM, every child from Mrs. Gandy's class went missing.
Astronomy professor Chris Impey's MOOC, or Massive Online Open Course, has already signed up more than 1,000 students and it recently got a shout-out from Sports Illustrated, which listed "free online ...