Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Science / Our Planet

Planktonic foraminifera assemblage from Caribbean sediments that provide an accurate picture of the species community before human influence. Each shell is less than one millimeter in size.

Plankton Haven’t Been the Same Since the Industrial Revolution

Changes in plankton populations over the past centuries correlate with rising sea temperatures

Reconstructed color patterns of Sinosauropteryx based on the pigmentation of fossil plumage. The dinosaur is portrayed in the predicted open habitat in which it lived around the Jehol lakes, preying on the lizard Dalinghosaurus.

The Colors of Dinosaurs Open a New Window to Study the Past

Old fossils and new technology are coloring in life’s prehistoric palette

Mosquito-borne diseases, such as Zika, malaria and Rift Valley Fever, threaten billions of people around the world.

How Scientists Use Climate Models to Predict Mosquito-Borne Disease Outbreaks

The ebb and flow of rainy seasons corresponds with the hatching of millions of mosquitoes—and the spread of diseases they carry

Bald cypresses along the Black River in North Carolina.

North Carolina Bald Cypresses Are Among the World’s Oldest Trees

Some of the trees along the Black River provide a window into climates dating back thousands of years

Life reconstruction of the bizarre membranous-winged Ambopteryx longibrachium.

Newly Discovered Bat-Like Dinosaur Reveals the Intricacies of Prehistoric Flight

Though Ambopteryx longibrachium was likely a glider, the fossil is helping scientists discover how dinosaurs first took to the skies

A starfish floating on the coral reef, Dominican Republic.

One Million Species at Risk of Extinction, Threatening Human Communities Around the World, U.N. Report Warns

A global assessment compiled by hundreds of scientists found that humans are inflicting staggering damage on the world’s biodiversity

The first test of a thermonuclear weapon, or a hydrogen bomb, codenamed Ivy Mike and conducted by the United States in 1952 over the island of Elugelab in Enewetak Atoll in the Pacific Ocean.

Particles From Cold War Nuclear Bomb Tests Found in Deepest Parts of the Ocean

Crustaceans in the Mariana Trench and other underwater canyons feed on food from the surface laced with carbon-14 from Cold War bomb tests

A map of earthquakes of magnitude 7.0 or higher between 1900 and 2013. Bigger dots represent stronger quakes, and red dots represent shallow earthquakes, green dots mid-depth, and blue dots represent earthquakes with a depth of 300 kilometers or more. See the full map and legend here.

Could Machine Learning Be the Key to Earthquake Prediction?

Predicting earthquakes might be impossible, but some experts wonder if tools that can analyze enormous amounts of data could crack the seismic code

With the snap of his fingers, Thanos wiped out half the life in the universe.

If Thanos Actually Wiped Out Half of All Life, How Would Earth Fare in the Aftermath?

The aftereffects of such a mass extinction don’t require a supervillain’s intelligence to understand

Margaret Dayhoff was a pioneer of using computers to tackle some of the biggest scientific questions of the day.

How Margaret Dayhoff Brought Modern Computing to Biology

The pioneer of bioinformatics modeled Earth’s primordial atmosphere with Carl Sagan and made a vast protein database still used today

Scientists Spot Beautiful Optical Illusion at Bottom of the Sea

More than 6,000 feet under the surface of the ocean, the extreme conditions can play tricks on your eyes

A partially exposed, 65-million-year-old fish from the Tanis deposit in North Dakota.

Fossil Site May Capture the Dinosaur-Killing Impact, but It’s Only the Beginning of the Story

The Tanis site in North Dakota contains evidence of the asteroid impact that killed off the dinosaurs

River basin map of the contiguous United States

Art Meets Science

These Beautiful Maps Capture the Rivers That Pulse Through Our World

Cartographer Robert Szucs creates colorful maps of the watersheds that creep across states, countries, continents and the globe

The Cambrian Period was a time of remarkable diversification of life when many of the animal groups that exist today first appear in the fossil record.

Fossil Treasure Trove of Ancient Animals Unearthed in China

The fossils from the Cambrian Period include dozens of new species and provide a window into life more than 500 million years ago

The Holy Fire at Lake Elsinore, California, when only about five percent of the fire was contained, August 9, 2018.

Untangling the Physics Behind Drifting Embers, ‘Firenadoes’ and Other Wildfire Phenomena

Fires can leap rapidly from building to building and even cause extreme weather events such as pyrocumulonimbus storm clouds

A composite color image of the Western Hemisphere captured by NOAA's GOES-16 satellite from 22,300 miles above the surface, January 15, 2017.

The Risks, Rewards and Possible Ramifications of Geoengineering Earth’s Climate

Injecting aerosols into the stratosphere could help cool the planet, but scientists have yet to study exactly how such solar geoengineering would work

A mural titled "The Origin of Life on Earth" at NASA Ames Research Center. The mural depicts the formation of our planet and the conditions that led to the evolution of life.

Earth’s Rock Record Could Reveal the Motions of Other Planets

Studying the layers of Earth’s crust, scientists have created a “Geological Orrery” to measure planetary motions dating back hundreds of millions of years

It was during another experiment in his lab that Naohiro Kato realized that microalgae might be a good ingredient for bioplastic.

Made From Microalgae, These Mardi Gras Beads Are Biodegradable

Louisiana State University molecular biologist Naohiro Kato is confronting plastic pollution one necklace and doubloon at a time

Michelle Obama is the 14th consecutive First Lady to have a cattleya orchid named in her honor (above). Last year, the Melania Trump orchid was earning acclaim in the plant world.

Here’s How Horticulturalists Made the Michelle Obama Orchid

This year’s orchid show takes over the cavernous naturally-lit Kogod Courtyard with thousands on view

Plastic debris is providing a new vessel for potentially invasive species to cross large distances.

Sea Creatures Still Arriving in the U.S. on Plastic Debris From the Japanese Tsunami Eight Years Ago

Marine biologists don’t know how long different species can survive adrift in the open ocean, and some may become invasive when they reach new shores

Page 29 of 107