An aerial view of the lower portion of the Colorado River shows the leading edge of the water pulse flow on May 12, before it connected with the sea.

Anthropocene

The Colorado River Delta Turned Green After a Historic Water Pulse

The experimental flow briefly restored the ancient waterway and may have created new habitat for birds

Going the distance: Evolution mavens in the Quantock Hills of England walked for some 3.5 billion years.

Evotourism ®

Evotourism: Great Places to Celebrate Evolution Around the Globe

From lemurs to Neanderthals, here’s our latest guide so you can travel the globe to enjoy what Darwin famously called “endless forms most beautiful”

Beware of this meat-eating Albertosaurus on the Royal Tyrrell Museum plaza.

Canada

Want to Excite Your Inner Dinosaur Fan? Pack Your Bags for Alberta

Canada’s badlands are the place to see fantastic dinosaur fossils (and kitsch)—and eye-opening new evidence about the eve of their fall

“You could say that saving species is in my blood,” says Chris Darwin, a conservationist who lives in the mountains explored by his great-great-grandfather.

Evotourism ®

How Australia Put Evolution on Darwin’s Mind

The famous naturalist’s revolutionary theory first took shape not in the Galápagos but in the primeval Blue Mountains

Think Big

Why String Theory Still Offers Hope We Can Unify Physics

Evidence that the universe is made of strings has been elusive for 30 years, but the theory’s mathematical insights continue to have an alluring pull

Why the Leatherback Turtle Has a Skylight in its Head

How do animals with poor vision see in dark locales?

What Does ‘Happy New Year’ Even Really Mean?

Physicists engage in a strange debate about whether time really passes

NASA is using nighttime pictures of Earth to track energy use during cultural holidays.

NASA Can See Your Holiday Lights From Space

Scientists can use holiday lights during Christmas and Rammadan as a proxy for overall energy use in urban areas

Singer and plastic-clothing designer Pharrell Williams at the "Raw For The Oceans" event at the American Museum of Natural History in New York City.

The Top 12 Ocean Stories That Made Waves in 2014

The seas served up some compelling headlines this year, from celebrity fashion to solving the mystery of the melting starfish

7th Place: Butter daisy (Melampodium divaricatum) flower at 2x magnification. Fluorescence. Oleksandr Holovachov, Ekuddsvagen, Sweden.

Some of the Most Beautiful Things in Nature Come in the Tiniest of Packages

The winners of the 2014 Olympus BioScapes Digital Imaging Competition capture a rat brain, the mouthparts of a vampire moth and other small wonders

Earth's layers.

What We Can Learn by Digging Up the Secrets of Earth’s Deep Carbon

Diamond computers and subsurface life are just some of the topics being investigated by scientists in the Deep Carbon Observatory network

A fossilized leaf from the Paleocene-Eocene Thermal Maximum sits in the Wyoming snow.

Anthropocene

Ancient Earth Warmed Dramatically After a One-Two Carbon Punch

A period of intense warming 55 million years ago is an even better case study for modern climate change than previously suspected

A light therapy session in a German clinic.

The Dangers of Winter Darkness: Weak Bones, Depression and Heart Trouble

Long periods without sunshine can play a role in a surprising variety of physical and mental disorders

A Sea of Fog Completely Filled the Grand Canyon

Known as total cloud inversion, the weather phenomenon is quite rare—and spectacular

Though playing music is common in operating rooms, sleeping is not.

What’s Your Surgeon’s Jam? Probably Classical or Soft Rock

British doctors make the case for playing music during an operation

The Melitta haemorrhoidalis bee, collected from Wotton-under-Edge, England, requires patches of bellflowers to make its nests.

Bees and Wasps in Britain Have Been Disappearing For More Than a Century

Changes in agricultural practices since the 19th century may be a major culprit in the pollinators’ decline

G. Wayne Clough

Anthropocene

Why Engineering Will Be Vital in a Changing Climate

Smithsonian Secretary G. Wayne Clough offers personal insights on the realities of climate change and the best ways for society to adapt

This 1897 calendar is brought to you by parading cats.

After 12/13/14, What Are the Next Fun Dates for Math Lovers?

Sequential integers are a bit boring, anyhow. Here are some more exciting sequences to celebrate over the next 89 years

Plastic trash collected from the world's oceans.

New Research

The Ocean Contains Over Five Trillion Pieces of Plastic Weighing More than 250,000 Tons

These frightening figures represent the most robust estimate of marine plastic pollution calculated to date

Enthusiasts examining the patch for NROL-35 think the trident, fire and breeze through the character’s hair might represent the elements—water, fire and wind. “What that has to do with the actual payload, however, is anyone’s guess,” says space historian Robert Pearlman.

The Creepy, Kitschy and Geeky Patches of US Spy Satellite Launches

There may be method to the madness behind the outlandish designs of the National Reconnaissance Office mission patches

Page 222 of 456