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.

But one day in the 1980s, while searching for a tourist destination to rival Lake Titicaca, a La Paz tour operator named ... up to bask in the great pale desert. Weddings, yoga tutorials, and ...