Tonight, Venus puts on a cosmic light show — here's how to see it

Once every eight years, a luminous Venus passes directly between Earth and an elusive cluster of stars known as the Pleiades. Tonight, you'll have a chance to witness this event with your own eyes. » 4/03/12 7:00am 4/03/12 7:00am

Astrophysicists Produce First Realistic Simulation of Milky Way's…

Astrophysicists have been trying for nearly two decades to produce a model capable of simulating the genesis of a spiral galaxy — the class of flat, rotating disk galaxies to which our own Milky Way belongs. And now, they've finally done it. » 8/26/11 5:44pm 8/26/11 5:44pm