Innovation

Angie Fogarty tested at least 100 different versions of her sensor before finding the perfect formula.

This 18-Year-Old Developed a Test to Find Out If Your Drink Has Been Spiked

The simple and inexpensive sensor detects the antihistamine in "Benadryl cocktails"

Driver-optional e-tractors promise to increase efficiency while cutting emissions.

Planet Positive

Could Electric Tractors Revolutionize Farming?

The vehicles may change the agricultural landscape by scaling sustainability and increasing efficiency

Americans will have a few extra days to file their taxes this year.

Why Is Tax Day in April?

These are the reasons behind the timing of many Americans' least favorite holiday

Ravens prey on juvenile desert tortoises.

For Young Threatened Desert Tortoises, These Technologies Have Arrived to Help

Biologists are deploying 3D-printed replicas of hatchlings, lasers and drones to curb predation

A revolutionary new tool, a collaboration between the Smithsonian Astrophysical Observatory and NASA, will monitor the chemistry and changing dynamics of major pollutants (above: an Arizona power generating station).

This Eye in the Sky Promises Major Insights Into the Air We Breathe

The satellite mission TEMPO will detect pollutants at a neighborhood scale across the nation

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Our Sustainable Future

Our Sustainable Future

The latest on how climate change affects life on Earth today and on what solutions scientists, including those at the Smithsonian, are innovating

A sadhill crane flies over the San Luis Valley.

Planet Positive

Planet Positive

From stories about rebounding species to dispatches about green innovations, <em>Smithsonian</em> magazine shares environmental practices that are working.

A team skis from the remote Taku D site to the Camp 10 sleeping quarters. Students often travel as much as 8 to 10 miles a day, carrying packs a third of their body weight.

Alaska

These Students Are Part of a 75-Year Study to Map Alaska’s Glaciers

Traversing an icefield by foot and on skis, the young researchers experience one of the coolest classrooms in the nation

Engineer Martin Cooper made the world&#39;s first cellphone call on April 3, 1973, using a Motorola DynaTAC.

From 'the Brick' to the iPhone, the Cellphone Celebrates 50 Years

As the technology turns 50, science fiction might hint at the cellphone's next chapter

Since its debut in 1974, Dungeons &amp; Dragons has only grown in popularity. No longer a niche game, it&rsquo;s been played by more than 50 million people to date.

14 Fun Facts About Dungeons & Dragons

Before watching the new movie adaptation, here's what you need to know about the history of the fantasy role-playing game

Saylor Flett, left, fans flames ignited by Jeff Greef. Air quality, weather and even bird migration affect when it&rsquo;s safe to conduct a burn.

Planet Positive

Fighting Fire With Fire in California

How communities in the West are boldly setting property ablaze to reduce the impact of extreme wildfires

Dairy farms like this one run by the Barstow family in Hadley, Massachusetts, make smart use of a substance cows produce in abundance.

How Dairy Farmers Are Turning Manure Into Money

These New Englanders have found a way to help the planet and convert more than 9,000 tons of cow waste annually into electricity

To collect a saliva sample, technicians instruct a person to tilt their head for two to five minutes and spit the accumulated saliva into a sterile tube. The saliva-filled tube is kept on ice and sent to the laboratory to test for the presence of biomarkers for cancer or other diseases.

Is Saliva the Next Frontier in Cancer Detection?

Scientists are finding tumor signals in spit that could be key to developing diagnostic tests for various types of cancer

The adaptive lighting cooked up by Camilla Rathsach and Mette Hvass would automatically adjust to the availability of moonlight, tweaking this church&rsquo;s lighting automatically to balance visibility and darkness. This mock-up shows how the church would be lit under a full moon.

This Danish Church Is a Beacon for How to Protect Wildlife From Artificial Light

A proposed design looks to automatically adjust the exterior lighting on the Anholt Island building to the moonlight

The sun sets over the Susquehanna River in northern Pennsylvania.

America's Waterways: The Past, Present and Future

America's Waterways: The Past, Present and Future

In a series of articles, <em>Smithsonian</em> magazine highlights all that draws our eyes to our nation's fresh and coastal waters

A $25 million plan to uncover 1,100 feet of Jordan Creek and build three bridges is moving forward in Springfield, Missouri.

America's Waterways: The Past, Present and Future

How 'Daylighting' Buried Waterways Is Revitalizing Cities Across America

Urban centers are exhuming creeks and streams once covered up to control floodwater—and bringing life back in the process

The strategy an animal uses to track a scent depends upon a number of factors, including the animal&rsquo;s body shape and the amount of turbulence in the odor plume.

Scientists Are Trying to Figure Out How Animals Follow a Scent to Its Source

Uncovering the varied strategies that animals employ could help engineers develop robots that accomplish similar tasks

At&nbsp;Ehrman Crest Elementary and Middle School, K-6 students are benefiting from an unusual collaboration.

Is This Elementary School Near Pittsburgh the Future of Education?

Ehrman Crest Elementary and Middle School is an innovative blend of children’s museum and classroom

Large-scale production of green hydrogen is seen as an alternative to the use of fossil fuels in the coming decades. Latin America is well-positioned to play a large part in this new industry and already has several projects in the works.

Can Green Hydrogen Help Power Latin America?

In anticipation of future demand, several projects are underway in the region to produce this clean energy source

Wesley Miles, a Pima archaeologist, points out that the placement of this new canal parallel to a prehistoric channel &ldquo;says something about our ancestors&rsquo; engineering skills.&rdquo;

America's Waterways: The Past, Present and Future

This Native American Tribe Is Taking Back Its Water

With a new state-of-the-art irrigation project, Arizona’s Pima Indians are transforming their land into what it once was: the granary of the Southwest

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