A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...

Photos from Mars have sparked a discussion about mysterious doors on the planet. The images surprised many as the peculiar ...

The 1.5 million acre Lake Mead National Recreation Area covers “mountains, canyons, valleys and two vast lakes,” the National ...

A perfectly square-shaped structure on Mars, 3 kilometers wide, spotted in NASA’s Mars Orbiter Camera images, has sparked ...

Peter Weir’s Australian New Wave classic turns 50 this year. Here’s what you need to know about the film, from the off-limits ...

What does NASA's discovery of odd popcorn rocks on Mars actually mean? It has discovered an oddly textured rock similar to ...

In the Arizona desert, researchers are learning so much more about the peoples who have inhabited this land since antiquity ...

A Mars image shows a strange square formation. Some think it's artificial, but experts suggest natural causes.

On Earth — for example, in the western United States — we find such hills in the form of buttes and mesas in desert areas, where rock formations have been eroded by the wind for millions of years. On ...

We can't get enough of the spectacular views of the jaw-dropping red rock formations from this iconic roadside attraction in ...

A rare satellite image captures Mount Vesuvius peeking through a mysterious cloud gap, sparking concerns about the volcano's past and future eruption threats to nearby Naples, Italy.