Ask Smithsonian

Ask Smithsonian: What Is a Freckle?

Those adorable and charming spots splayed across the nose and cheeks might also be an indicator of sun damage

Activist Tristram Stuart adds to a collection of fruits during an event in Trafalgar Square designed to highlight food waste by feeding 5,000 people on rejected supermarket food.

Age of Humans

This Is How Much Water You Waste When You Throw Away Food

Tossing an apple is like pouring 25 gallons of water down the drain, and the average American does that 17 times a year

There's a dinosaur in every chicken.

New Research

Genetic Tweaks Are Revealing the Dinosaur Traits in Living Chickens

A Yale paleontologist is blending fossil studies and bird genes to trace the ways dinosaurs transformed into today’s feathered flocks

The volcanic plume responsible for the 2010 eruption of the Eyjafjallajokull Volcano in Iceland has also brought up bits of Earth's ancient mantle from deep inside the planet.

New Research

Earth’s Water May Be as Old as the Earth Itself

Ancient volcanic rocks may have preserved tiny samples of the planet’s original moisture

Bees are not so picky when they stop for a snack.

New Research

Ancient Bees Were Voracious Snackers on Their Pollen-Gathering Treks

Fossils from Germany could help researchers better understand modern bee eating habits and better protect the beloved pollinators

Left: Alan Stern holds a 2005 Hubble image of the Pluto system on January 19, 2006, two hours after the successful launch of the New Horizons probe. Right: A triumphant Stern holds a full-frame image of Pluto, taken just hours before the New Horizons probe reached its closest point to Pluto.

American Ingenuity Awards

How Alan Stern Brought Pluto to Earth

The scientist behind NASA’s New Horizons mission gave cheering earthlings their first close-up view of the dwarf planet

American Ingenuity Awards

Smile, Frown, Grimace and Grin — Your Facial Expression Is the Next Frontier in Big Data

Engineer Rana el Kaliouby is set to change the way we interact with our devices—and each other

Doo Yeon Kim, left, and Rudolph Tanzi

American Ingenuity Awards

The Two Brains at the Forefront of the Fight Against Alzheimer’s

Rudolph Tanzi and Doo Yeon Kim have invented a revolutionary new tool to study the mysteries of the disease and counter the coming epidemic of dementia

That cockroach has a nasty bite.

New Research

A Cockroach Can Bite With a Force 50 Times Its Body Weight

Adding to their supervillain-esque powers, roaches can gnaw through tough materials with surprisingly strong jaws

Holiday feasts can be celebratory but also sustainable with a few simple tweaks.

Age of Humans

How to Have the Most Sustainable Thanksgiving Ever

Traditions and turkey don’t have to be incompatible with Earth-friendly practices

This composite image features Pluto and its largest moon Charon in enhanced color.

New Research

Sorry Pluto, You Still Aren’t a Planet

A new test for planetary status leaves the diminutive world and its dwarf planet kin out of the family portrait

This creamy expanse is Sputnik Planum, the western lobe of the heart-shaped feature on Pluto.

New Research

Pluto May Have Ice Volcanoes at the Bottom of Its Heart

Two southern peaks have depressions that hint they once spewed icy slurry onto the tiny world’s surface

A large display case holds the fossil of a plesiosaur at the Natural History Museum in London.

New Research

A Long-Necked Marine Reptile Is the First Known to Filter Feed Like a Whale

The bizarre Mortuneria used sieve-like teeth to strain tasty morsels from the muddy Cretaceous seafloor

A bird watcher walks through a dried-up riverbed in the Netherlands in 2007.

Age of Humans

A New “Drought Atlas” Tracks Europe’s Extreme Weather Through History

The data, based on tree rings, fills in details about past events and could help improve climate modeling for the future

An artist's concept of NASA's Mars Atmosphere and Volatile Evolution (MAVEN) mission at Mars.

New Research

The Sun Stole Part of Mars’ Atmosphere, and NASA Was Watching

Observations from the MAVEN spacecraft should help scientists figure out if and when Mars had the right conditions for life

Seasonal affective disorder can cause people to feel isolated and hopeless.

New Research

Talking Is the Latest Tool for Battling Seasonal Depression

A large-scale study suggests that talk therapy may have longer-lasting benefits than light boxes for treating wintertime blues

The Dakotaraptor fossil, next to a paleontologist for scale.

New Research

New Winged Dinosaur May Have Used Its Feathers to Pin Down Prey

Meet “the Ferrari of raptors,” a lithe killing machine that could have taken down a young T. rex

The weasel-like fisher, an already at-risk animal, faces threats of poison from pot farms.

New Research

Illegal Pot Farms Are Killing Rare Animals With Bacon-Scented Poison

Marijuana plots hidden in California’s forests are inadvertently poisoning protected mammals called fishers

These galaxies are smiling at you thanks to general relativity.

Think Big

Seven Simple Ways We Know Einstein Was Right (For Now)

For the past 100 years, these experiments have offered continued evidence that general relativity is our best description of gravity

“If I go look for dinosaurs, I will find them, because there’s tons of them out there,” says Kirk Johnson, the director of the National Museum of Natural History and the star of a new Nova series "Making North America."

Smithsonian’s Kirk Johnson Steps Up to Be the Rock Star of Geology

The new PBS science series “Making North America” features the director of the National Museum of Natural History

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