Groggy after a night in a strange place? A night watchman in your brain may be to blame.

You Can’t Sleep While Traveling Because Your Brain Acts Like a Dolphin’s

On the first night in a new place, half your brain stays awake to watch out for danger

Severe drought killed this stand of trembling aspen trees, Populus tremuloides, near Fairplay, Colorado.

What Does a Dying Forest Sound Like?

As temperatures rise, scientists scramble to pinpoint trees in danger of drought

Ginseng roots

The Fight Against Ginseng Poaching in the Great Smoky Mountains

A profitable black market for the native shrub pits the National Park Service against poor residents of Appalachia

After a century in which black holes went from theoretical nuisances to undisputed facts, a new initiative at the Harvard -Smithsonian Center for Astrophysics will study them.

Think Big

Stephen Hawking on Why Black Holes Are Worthy of Your Consideration

A new Harvard-Smithsonian initiative will delve into the places in the universe where spacetime sags around massive objects

Workers in Sumatra process an oil palm harvest from the plantation on the left even as the remnants of the natural peat swamp forest in the distance are burned to make way for new plantations.

Journey to the Center of Earth

The Mad Dash to Figure Out the Fate of Peatlands

As the planet’s peat swamps come under threat, the destiny of their stored carbon remains a mystery

Jekan Thanga (right) and students holding FemtoSats

The Innovative Spirit fy17

These Tiny Satellites Can Be Launched Into Space for as Little as $1,000

Researchers at Arizona State University may be paving the way for consumer satellite flight

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

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

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?

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

Avalanches may have triggered the jets of material spewing from Comet Hartley 2.

Avalanches on Comets May Help Make the Icy Bodies Visible

Tumbling rocks may have lit up Comet Hartley 2, allowing its discovery in 1986

This is a hypothetical set of possible universes.

Think Big

Can Physicists Ever Prove the Multiverse Is Real?

Astronomers are arguing about whether they can trust this untested—and potentially untestable—idea

A study of baboons found that have an easy life when young can pay off years into the future.

For Baboons, a Tough Childhood Can Lead to a Short Life

Primates that grow up under tough conditions don’t live as long as those that have it easy

Water spreads like inky-blue fingers into mangrove forests along the shore of Australia's Ord River (top). The sediment load in the water shows up as yellow and orange while mudflats stick out like a light blue bull's-eye on the lower left.

Journey to the Center of Earth

These Stunning Satellite Images Turn Earth Into Art

These images illustrate the brutal beauty geologic processes carve into our planet

Andy Weir

Future Is Here Festival

Andy Weir, Author of “The Martian,” Shares Details About His Next Novel

The science fiction writer also talks about the future of space travel

Chandra image of the Antenna Galaxy.

Life in the Cosmos

Life in the Cosmos: Special Report

Exploring the mysteries of the universe

Anthony Fauci is America's point person in confronting epidemics.

Future Is Here Festival

Anthony Fauci Is Waging War Against Zika, and Preparing for Other Epidemics to Come

The director of the National Institute of Allergy and Infectious Diseases talks about developing a Zika vaccine

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