In 1908, explorer G.E. Kincaid made a shocking discovery in the Grand Canyon: a man-made cavern ... Dive into the mystery the Smithsonian allegedly tried to bury. Judge appears inclined to deny ...

The universe presents us with great mysteries. What came before the Big ... How long would it take everyone on the planet to fill the Grand Canyon with pee? Probably not a burning question ...

The man who led a landmark attempt to navigate the entire length of the Grand Canyon did not exactly look ... This is the mystery of risk: What makes some humans willing to jeopardize so much ...

Why did this society, ancestors of The Mystery of Chaco Canyon is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire ...

Chaco Canyon National Historical Park is nestled ... of a Native American culture—one whose collapse long remained a mystery. Enter the pack rats. As the name suggests, these rodents are ...

Photo via Grand Canyon National Park ... he could not fathom the mystery, and the exclamation, “What for?” burst from his lips. Thereafter he daily sat there for an hour.