Science

The age-defying Pheidole dentata hard at work.

New Research

These Unusual American Ants Never Get Old

<em>P. dentata</em> ants are among the very few species to show no signs of deterioration as they age

This ancient skull has a terrible tale to tell.

New Research

An Ancient, Brutal Massacre May Be the Earliest Evidence of War

Even nomadic hunter-gatherers engaged in deliberate mass killings 10,000 years ago

Rocky bodies that slammed into early Earth might have been integral in setting up the conditions for our magnetic field.

Journey to the Center of Earth

Humble Magnesium Could Be Powering Earth's Magnetic Field

The common element could have been driving the planet's dynamo for billions of years

Pictures? No problem. But don’t expect much information. A crew tends to the X-37B after it landed at Vandenberg Air Force Base in October 2014, after 674 days in orbit.

What’s the Secretive X-37 Spaceplane Doing Up There?

The Air Force isn’t saying, so we asked other spaceplane experts

A concept (preliminary) rendering for the Mulciber Stove, which its inventors say gives off less smoke per hour than one cigarette.

Future of Energy

How to Modernize the Wood Stove and Help Save the Planet

The humble wood stove is getting a high-tech makeover, and may be going green

How many more seats are left at the table?

When Will We Reach the End of the Periodic Table?

Even with new elements in hand, scientists are struggling to predict the future of the iconic chemical roadmap

Guess what? You have more roommates than you think.

New Research

Dozens of Insects and Spiders May Live in Every Room of Your House

A survey of 50 North Carolina homes turned up just five rooms that were completely free of arthropods

Chimpanzees engage in social grooming in Gombe National Park.

New Research

Social Contact Helps Beneficial Gut Bacteria Spread

A study of chimp poop suggests that social animals share a collective microbiome that might help regulate health

A Hoplophoneus pseudo-cat skull in the collections of the Natural History Museum of Utah.

The Dakota Badlands Used to Host Sabertoothed Pseudo-Cat Battles

The region was once home to a plethora of catlike creatures called nimravids, and fossils show they were an especially fractious breed

An illustration shows the record-breaking supernova ASASSN-15lh as it would appear from an exoplanet about 10,000 light-years away.

Think Big

Astronomers Have Found the Brightest Supernova Yet

The powerful blast is so weird that it could be a whole new kind of star explosion

Wooly mammoths would have been challenging but desirable prey for early humans.

New Research

Humans Were in the Arctic 10,000 Years Earlier Than Thought

Distinctive cut marks on a Siberian mammoth represent the first known evidence of human hunters this far north

Fossilized microbial mats, or stromatolites are one of the oldest fossils found on Earth. This one lurked in shallow waters 3.4 billion years ago.

Life and Rocks May Have Co-Evolved on Earth

A Carnegie geologist makes the case that minerals have evolved over time and may have helped spark life

“We’ve been raising CO2 in this marsh for 30 years, but [elevated] CO2 comes with warming,” says Pat Megonigal, lead researcher of the new study in the Global Change Research Wetland at Smithsonian Environmental Research Center (SERC).

Age of Humans

For the World’s Wetlands, It May Be Sink or Swim. Here’s Why It Matters

One of the world’s most long-studied marshes has revealed a wealth of information, but it continues to perplex and intrigue the scientists who analyze it

Antarctica as viewed from space. The world's largest ozone hole—now shrinking—opens over Antarctica every year during local summer and shrinks in the winter.

Age of Humans

The Ozone Hole Was Super Scary, So What Happened To It?

When the ozone hole was discovered, it became a worldwide sensation. Thirty years later, what's become of it?

A man pulls a cart full of empty PC cases that'll be broken down by recyclers in Agbogbloshie, in Accra, Ghana.

Age of Humans

The Burning Truth Behind an E-Waste Dump in Africa

Ending the toxic smoke rising from an iconic dump in Ghana will take more than curbing Western waste

Adam Steltzner celebrates the successful landing of the Curiosity rover on Mars on August 5, 2012.

What Landing a Rover on Mars Teaches You About Leadership and Teamwork

In his new book, NASA engineer Adam Steltzner shares his insights on how to inspire people to make the impossible possible

None

Ask Smithsonian: What Is Wind?

Whether arriving on a gentle breeze or a stiff gale, air moves like water responding to high and low pressures around the Earth

Microbes are now known to play many roles in the upper atmosphere: forming clouds, causing rain, and maybe even changing climates.

Age of Humans

Living Bacteria Are Riding Earth's Air Currents

The high-flying microbes can travel across the globe, spreading disease or even changing climates

Pollutants hang in the air at a coke plant in Pennsylvania. This plant was photographed in 1973, but humans have been polluting their air for many years before that.

Age of Humans

Air Pollution Goes Back Way Further Than You Think

Thousands of years ago, humans were adding lead fumes and other pollutants to the air

What goes into a black hole never comes out. Or does it?

New Research

Stephen Hawking Thinks We Can Solve a Major Black Hole Mystery With Hair

No toupees needed, though. The "hairs" in question are minute changes in spacetime at the fringes of black holes

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