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Did Neanderthals Die Out Because of the Paleo Diet?

A new theory links their fate to a meat-heavy regimen

Watkins photographed vistas like the valley’s Half Dome.

How an Obscure Photographer Saved Yosemite

The beauty of the national park became clear long before Ansel Adams

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Discussion

Readers responses to our May issue

Paradoxically, food aid can cause game like the black curassow to be overhunted.

What’s the Best Way to Help the Amazon’s Indigenous People?

Can a pioneering computer model save the rainforest’s residents from our best intentions?

For Those Clutching Pearls Over Buzzfeed: A History of Newspapers Reveals That It’s Always Been This Way

From user-generated content to political screeds, the future of news happens to look a lot like the past

The model arrived at the Smithsonian in 1974 lacking most of its lights, and replacements burned hot and gave off damaging ultraviolet light. Specialists Will Lee (left) and David Wilson work on ways to deploy new LEDs, which give off little heat and no UV light.

The Starship Enterprise Is Coming in for a New Landing at the Smithsonian

This artifact in the Air and Space Museum collections boldly returns to public view

Engineers have been working on improving Orion’s heat shield since the vehicle successfully traveled to space for the first time last year.

Inside the Grand Plan to Send Humans to Mars

NASA’s innovative deputy administrator Dava Newman explains just how close we are to sending astronauts far, far away

In 1781, Arnold ordered British troops to burn New London, Connecticut.

Why Benedict Arnold Turned Traitor Against the American Revolution

The story behind the most famous betrayal in U.S. history shows the complicated politics of the nation’s earliest days

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Discussion

Reader responses to our April issue

The NASA Robot That Failed to Do Its Job

A cautionary tale about the android who just wasn’t suited for the task at hand

Some molecular motors in this “biocomputer” are made in the lab but copy those found in brains.

Can Proteins From Living Cells Solve Problems That Vex Supercomputers?

When nature knows best

Joseph Cotten, Orson Welles and Everett Sloane in the offices of Kane’s Inquirer.

Who Really Wrote “Citizen Kane”?

Two new books offer divergent theories on the authorship of the much-heralded film

Berlin Face, Berlin, 2013

Fashion Photographer Klaus Mitteldorf Captures the Chaos of Modern Identity

These images evoke a world of endless distraction

One of a series of psychedelic concert posters done by artist Wes Wilson between 1966 and 1968 for concert promoter Bill Graham of San Francisco’s Fillmore Auditorium

How a Psychedelic Concert Poster Rocked the World

C’mon baby light my flier

An Oral History of “Star Trek”

The trail-blazing sci-fi series debuted 50 years ago and has taken countless fans where none had gone before

Black widows’ red hourglass tells birds to back off but is almost invisible to insects.

The Deadly Cunning of the Black Widow’s Color Scheme

Why did the spider evolve to have that crimson hourglass on its back?

Sam Bousfield, pictured here in a mock-up of the Switchblade, worked with Boeing engineers refining wind-tunnel construction before launching Samson Motorworks.

The Future of Cars Is Already Here

Even before the “Jetsons,” people dreamed of flying cars. Now breakthroughs in technology are helping all kinds of vehicles get off the ground

Your Questions for Astronaut Tom Jones, Answered

Just a sampling of what we can learn from those who have been to space

How to Plug In Your Brain

If neuroscientists are right, you’ll soon be able to sharpen your focus and boost your memory by recharging your brain—with electricity

What’s It Like in Space? Ariel Waldman Has the Answers

The NASA adviser and author of a new book gives some insight on living beyond the Earth’s atmosphere

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