Why Carl Sagan is Truly Irreplaceable

No one will ever match his talent as the “gatekeeper of scientific credibility”

500,000 Cranes Are Headed for Nebraska in One of Earth’s Greatest Migrations

At the end of March, 80 percent of the world’s cranes will converge upon one 80-mile stretch of land

As the Planet Warms, What Happens to the Reindeer?

Ecologists are racing across the ice to find out how climate change will affect the Arctic natives

Nicaragua stands to lose around one million acres of rainforest and wetlands if the new canal is built.

New Research

Nicaragua Plans to Bisect the Country With a Massive Canal

The canal would cause “tragic devastation” to both the country’s natural heritage and indigenous communities, scientists say

New Research

Your Dog Can Tell From Your Voice If You’re Happy or Sad

New fMRI research shows that dogs’ brains are specially equipped to process human voices, and respond differently based on our emotions

Plumes of steam rise up from many spots along the Firehole River in Yellowstone National Park.

New Research

Yellowstone Belches Ancient Helium

Gas stored in the Earth’s crust for hundreds of millions of years is released by volcanic hotspot

An artist's rendition of the Big Bang.

What Astronomers Are Still Discovering About the Big Bang Theory

A half-century after it was confirmed, the theory still yields new secrets

In comparison to this cell, those used for solitary confinement often lack even a barred doorway, further limiting exposure to others.

The Science of Solitary Confinement

Research tells us that isolation is an ineffective rehabilitation strategy and leaves lasting psychological damage

Five years ago, a team of scientists in Iceland, drilling deep within the Earth’s crust, hit upon molten rock.

Can Volcanic Magma Power The Future?

Scientists in Iceland have figured out how to create geothermal energy from super-hot molten rock

A pair of Ammonite fossils, about 4 inches across, within a limestone bed very close to the Permian-Triassic boundary.

New Research

How Long Does Mass Extinction Take?

By figuring out the timing and rate of the world’s most massive extinction 252 million years ago, scientists hope to figure out how such lethal events work

The New York Stock Exchange trading floor in 1963.

New Research

How Stress Hormones Impact the Behavior of Investors

Cortisol, a natural hormone, has been found to rise during times of market volatility and make people more risk-averse

The 13,000-foot high Grasberg mine contains the largest single gold reserve in the world, and the largest copper deposit as well.

The Environmental Disaster That is the Gold Industry

The mining industry has had a devastating impact on ecosystems worldwide. Is there any hope in sight?

Five Vitamins and Supplements That Might Actually be Worth Taking

Science tells us that taking most vitamins is worthless—but a few buck the trend

Some dinosaurs, such as the (Caudipteryx zoui) above, had brightly colored feathers. New research suggests that modern birds inherited their own color varieties from their feathered dinosaur ancestors.

Colorful Plumage Began With Feathered Dinosaurs

The pigment patterns scientists use to predict ancient animal colors started with feathered dinosaurs and led to vibrant color in birds

Coal was once the most common source of energy in the United States, but it has been overtaken by petroleum and, more recently, natural gas.

New Research

Natural Gas Really Is Better Than Coal

If too much methane leaks during production, though, the benefits will be lost

A mother right whale and her calf.

New Research

Satellites Spot Whales From Space

This new method could help researchers remotely count and keep track of whale populations

Small lungs made out of felt, infused with the DNA from killed Mycobacterium tuberculosis bacteria.

Art Meets Science

An Artist Dyes Clothes and Quilts With Tuberculosis and Staph Bacteria

Anna Dumitriu combines bacteria and textile design to explore our relationship with microorganisms

"I began to wonder," says Smithsonian researcher Dolores Piperno, who studies the ancestor of the corn plant, "what did the plants actually look like between 10,000 and 13,000 years ago? Did they look the same?"

To Decode the Mystery of Corn, Smithsonian Scientists Recreate Earth as it Was 10,000 Years Ago

As part of a groundbreaking study, researchers built a greenhouse “time machine”

New Research

Myth Debunked: Wind Farms Don’t Alter the Climate

A model indicates that doubling Europe’s number of wind turbines would have a negligible effect on temperature and precipitation

New Research

A Scientific Explanation of How Marijuana Causes the Munchies

THC appears to increase our sensitivity to scents and flavors by using naturally occurring neural networks to convince the brain that it’s starving

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