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Science / Our Planet

The Claudio Aqueduct was built in the 1st century along the Appian Way in Rome.

Anthropocene

Ancient Roman Water Networks Made the Empire Vulnerable

A model of ancient water movement shows how trade practices might affect today’s urban centers as the climate changes

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

“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

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

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 Sea of Fog Completely Filled the Grand Canyon

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

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

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

The Shape of Things to Come, Antarctic Sound, February 2010: "As we sailed with the land to our backs, I saw this bright, jagged iceberg with a dark-blue sea," writes Seaman.

Art Meets Science

These Photos Capture a Decade of Change at Earth’s Poles

From courting penguins to moody icebergs, photojournalist Camille Seaman shares her personal journey through polar habitats

As above, so below.

The Hidden Underbelly of West Antarctica Is Melting

Warm currents are flowing under ice shelves, causing coastal losses that may let land-based glaciers slide into the sea

Scientists found deliberate scratching on a fossil Pseudodon, likely an engraving made by Homo erectus at Trinil in Indonesia.

New Research

Zigzags on a Shell From Java Are the Oldest Human Engravings

The early human Homo erectus also made the oldest known shell tools half a million years ago

2014 Holiday Gift Guide

Best Gifts of 2014 for Nature Lovers

Smithsonian editors, gardeners and scientists offer ideas to give the gifts that keep wildlife thriving

Jura 103

Art Meets Science

The Physics of Whisky’s Aesthetically Pleasing Residue

A photographer teamed up with scientists to figure out the fluid dynamics behind patterns left in whisky glasses

Hunting and gathering, Metro sapien-style, in Vancouver's Granville Island Public Market.

Anthropocene

Humans Are Becoming City-Dwelling “Metro Sapiens”

To achieve sustainability, the human species needs to embrace its urban side, argues public health researcher Jason Vargo

The dense metropolis of Tokyo sparkles like an urban playground at night.

Anthropocene

Are Megacities Friend or Foe in the Fight Against Climate Change?

Like the people who call them home, cities have the potential for good and bad when it comes to adapting to a warming world

The Mystery of Why This Dangerous Sand Dune Swallowed a Boy

When a boy suddenly disappeared into a sand dune, a scientist embarked on a quest to find out where he went

A New Canal Through Central America Could Have Devastating Consequences

The ramifications of the proposed route have environmentalists worried, and for good reason

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