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Yuval Noah Harari expects we'll soon engineer our bodies in the same way we design products. "I think in general medicine ... will switch from healing the sick to upgrading the healthy," he says.

The Wrangell-St. Elias National Park and Preserve is home to the biggest subpolar ice field in North America, and nine of the 16 highest peaks in the U.S. Smitty Parratt, the park's chief interpreter, talks about the largest U.S. national park.

It doesn't rain that much in Tucson, Ariz., but when it does, Brad Lancaster makes use of every drop. Lancaster has perfected the art of capturing and saving rainwater.

Phoenix is clearing the encampment known as The Zone to comply with a court order. Another ruling orders the city to provide somewhere for unsheltered people to go. The question is where will they go?

Arkansas is temporarily blocked from enforcing a law that would have allowed criminal charges against librarians and booksellers for providing "harmful" materials to minors.

Michael Bible's slim new novel follows a jaded, drunken priest and his chess-master sidekick on a cross country journey, along with a crowd of misfits and outliers who help give the book its charm.

Churches in Birmingham rang bells Friday to commemorate the 60th anniversary of the church bombing that killed four young girls and invigorated the civil rights movement.

If the conspiracy theorists are right, we only have a few more days before the end of the world. Author Ben H. Winters describes his favorite pre-apocalyptic works of fiction. Do you have a favorite doomsday masterpiece? Tell us in the comments.

After 71 hours and 8 minutes of flight time crossing the Atlantic, Solar Impulse 2 touched down in Spain. It's a big step toward the goal of circumnavigating the globe using only the sun's power.

An Iraqi special forces commander worries that the battle to force ISIS from the city of Mosul is too dependent on his elite troops.