April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

Guided tours take guests through the Clark Telescope ... including the Giant Magellan Telescope in Chile's Atacama Desert. Details: 1-5 p.m. Mondays-Fridays. Closed on Saturday and Sunday.

Many were detained in the Pisagua penal colony in the Atacama Desert. (During his post-1973 ... The agency judged its production a “genuine tour de force.” Five years later, Washington ...

Here’s a tour of some of the weirdest rocks ever ... of the Martian sulfur to samples from Hawaii, the Chilean Atacama desert and a hydrothermal volcanic region in New Mexico called Valles ...