In the high desert of eastern Utah, the earth seems to have forgotten the rules of geology. Here, the landscape is a riot of ...

Over the course of three centuries, from the 17th through the 19th inclusive, there was an astronomical controversy that was ...

New NASA supercomputer simulations show that Saturn's rings may have been formed by a 'massive collision' of icy moons.

Look to the west-southwest after dark on Thursday, Jan. 22, to see a 17%-lit waxing crescent moon moving close to the ringed ...

The lunar crescent will disappear below the horizon before midnight on Jan. 22.

Kicking off the year's cosmic wonders is the moon, drawing the first astronauts to visit in more than 50 years as well as a ...