Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

Watch students comically portray how plants can detoxify the environment

Through a series of processes that collectively make up phytoremediation, plants can take up pollutants from soil and water through their roots, then break them down, release them as less harmful gases, or store them within their cells. Any plants that sequester heavy metals or other toxins must be removed and managed after the environment is decontaminated.

Exposure to ionizing radiation from nuclear accidents can damage DNA

The damage can increase the risks of cancer, cataracts, heart disease, and other illnesses based on exposure times and intensities. Contaminated food, water, air, or soil from near nuclear accidents can further prolong one's exposure.

Farmer secretly plants sunflower field for 50th anniversary with wife

Kansas farmer Lee Wilson wanted to give something special to his wife of 50 years, Renee, on their golden anniversary, so he secretly planted 80 acres of sunflowers in May for an August bloom. The gift consists of roughly 1.2 million sunflowers,...

Some scientists propose AI-powered satellites to monitor nuclear weapons in place of arms control treaties

With the New START treaty expired, researchers at the Federation of American Scientists have proposed using satellites and AI to remotely verify nuclear arsenals—replacing the onsite inspections that once built trust between the US and Russia during the Cold War.

Uranium's ability to split easily makes it the most common catalyst for nuclear power

Uranium is commonly found in rocks, water, and soil worldwide, but significant industrial processes are needed to process and enrich it for efficient reactor usage. After being irradiated in reactors, it must be cooled down before disposal.

Ukraine once had the third-largest nuclear arsenal—and gave them all up by 1996

After the rapid collapse of the Soviet Union, Ukraine was left with over 1,700 nuclear warheads positioned throughout its territory. A massive global effort ensued, led by the United States, to return these and other nuclear weapons in former Soviet allied states to Russia.

Solar panels can create pollinator-friendly habitats by protecting flowering plants

An example of agrivoltaics, where land is used for solar energy production and agriculture, the panels provide clean energy while also shading plants from excessive sunlight. Pollinator-friendly plants can improve water quality and reduce soil erosion by obstructing the wind.

The Curies were buried in lead-lined coffins to contain their radioactive bodies

Their discoveries of polonium and radium involved ongoing exposure to radioactive materials before shielding technology was developed. Their notebooks, furniture, and other belongings remain radioactive today, requiring researchers to sign a waiver and wear protective clothing to access.

The Chernobyl exclusion zone has become a unique wildlife refuge

Within the area—roughly the size of Yosemite National Park—animals such as wolves, bears, and feral dogs descended from the pets left behind have gradually adapted to low-level radiation. Eastern tree frogs in the area have darker skin than usual, which may have helped protect them from ionizing radiation.

The use of fungi to detoxify land and water—a process known as mycoremediation—has been used to clean up natural resources affected by the 2025 California wildfires.

Learn about the 'Goldilocks' of radioisotopes, which can help attack hard-to-treat cancers

Actinium-225 can be attached to a molecule that binds to cancer antigens, helping it target specific cancers in the body. It emits alpha particles that can damage DNA but do not penetrate deeply, confining the damage to nearby cancer cells. However, annual global production of actinium-225 is less than a grain of sand.

A weed from the mustard family facilitated the molecular era of botany

The small genome and rapid growth cycle of Arabidopsis thaliana have made it an ideal organism for genetic studies, with over 100,000 research papers exploring topics such as disease resistance, stress tolerance, and response to light. The first studies were done on plants that grew from seeds saved during the Hungarian Uprising of 1956.

Watch 'The Atomic Café'—Cold War satire that exposed nuclear propaganda and proliferation risks

This 1982 collage-documentary uncovers a surreal Cold War era: US civil defense films downplayed nuclear horror, arguing the films fueled public complacency, while the arms race and civilian nuclear hype fueled global proliferation fears before NPT safeguards emerged.

NUKEMAP lets you model the effects of a nuclear detonation anywhere on Earth

The tool was built by Alex Wellerstein, a historian of nuclear technology at the Stevens Institute of Technology in New Jersey. NUKEMAP uses declassified weapons data to calculate blast radius, thermal radiation, fallout patterns, and estimated casualties for any nuclear device dropped on any city. More than 50 million people have used it since its 2012 launch.

One Mary Cassatt painting features a sly political message

Critics had long been puzzled by the unrealistic flower pinned to the woman's chest in the 1905 painting "Mother and Child." In exploring the painting's history, researcher Nikki Georgopulos discovered that the flower alluded to a women's suffrage badge popular at the time, something Cassatt emphasized in the painting's original title, "Woman With a Sunflower."

Isodope is the world's first nuclear energy influencer

Isabelle Boemeke, a Brazilian fashion model and social media personality, began promoting the benefits of nuclear electricity in 2015. She now debunks common objections to it through her TikTok persona Isodope—which has more than 34,000 followers.

J. Robert Oppenheimer’s grandson says his grandfather would back nuclear power

While the "father of the atomic bomb" referred to the bomb as "an evil thing," after the Manhattan Project, he also described nuclear energy’s potential as an environmentally friendly solution to address the world's energy problem.

The history of helioseismology, which studies seismic waves traveling within the sun

Following World War II, scientists began studying the sun's influence on radio waves, the most popular form of mass communication at the time. NASA missions to study the sun's interior have since helped develop explanations for various phenomena in its atmosphere and protect digital infrastructure.

Bees are more likely to remember a flower if its nectar contains caffeine

Plants want pollinators to keep coming back, so the finding suggests that some plants, such as Citrus and Coffea species, have evolved to include caffeine in their nectar. Researchers suggest the findings could help develop methods to reinvigorate pollinator populations.

Marigolds are an iconic symbol of Day of the Dead

The native Mexican flower performs several functions in Day of the Dead celebrations. Its vibrance and unique scent help guide wandering souls home, and its cheerful color reminds celebrants that death can still be joyful.

Scientists keep track of time via light absorbed by cesium and strontium atoms

These absorptions happen in cycles, where one second is defined as 9,192,631,770 cycles of cesium atom radiation. Strontium atoms can be used to make clocks that do not gain or lose a second in 15 billion years.

How fusion—which releases energy when two lighter atoms combine to form a heavier atom—differs from fission

How sunlight helps chlorofluorocarbons destroy the ozone molecules that block solar radiation

CFCs, which are used in old refrigerants, air conditioners, and aerosol sprays, do not react with atmospheric molecules. Once they reach the stratosphere, ultraviolet radiation breaks chlorine atoms off of them, which can each break apart more than 100,000 ozone molecules, thinning Earth's protective layer against ultraviolet radiation.

The common 'Three Sisters' mound-planting system used by natives

In the 17th century, Native Americans cultivated a three-plant combination of corn, beans, and squash—a symbiotic tradition dating back hundreds of years. The corn allowed the beans to climb, the beans fertilized the plants by extracting nitrogen from the air, and the squash leaves protected the soil and preserved moisture. Learn more about the tradition here.

Radioactive elements can introduce software errors because the ionizing radiation they produce can detach electrons from atoms, and computer code relies on the distribution of electrons.

The scarecrow isn't an effective tool for farms, but it is a potent symbol in horror

Scarecrows are no longer the best way for farmers to prevent birds from messing with their crops, but the humanlike figures are still found in horror movies. Folklorists say that's because they recall an agrarian past that makes modern viewers uneasy.

Sesame seed regulations have led to fewer sesame-free products

Food producers have been required to include specific labeling on their packages for sesame since new regulations went into effect in January 2023. In response, some food producers have decided to add small amounts of sesame to foods, including breads, rather than do the costly work of scrubbing their facilities of all possible sesame contamination.

Microplastics are entering human food chains through fertilized farmland

Microplastics from sewage sludge used as fertilizer contaminate agricultural soil and eventually enter our bodies through the food supply of carrots, wheat, and other foodstuffs. In Europe, farmland may absorb up to 710 trillion microplastic particles yearly.

Astronauts have repaired genetic damage in space using CRISPR—a molecular tool that can make precise changes to DNA and is used in single-celled organisms to attack invasive viruses.

In 1984, Operation Smash Hit intentionally crashed a 239-ton train into a nuclear waste canister at 100 miles per hour to prove the canister's safety, which remained completely intact and lost just 0.29 of its 100 pounds of pressure.

When caught in the mouths of cardinal fish, seed shrimp release glowing, bioluminescent chemicals, which alert predators of the cardinal fish, prompting the shrimp's ejection.

Some renewable energy sources may weaken the resiliency of electric grids by removing outage buffers provided by coal- and natural gas-fired plants, which provide the system with more time to find a new power source if a plant goes down.

During the French Revolution, a botanist's letter asking about "dear Rhus" (poison ivy) was intercepted, leading authorities to suspect he was conspiring with the Russians.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

After NASA's Voyager 1 captured Earth as a single pixel as it left the solar system in 1990, astronomer Carl Sagan used the image to reflect on humanity's fragility and the responsibility to protect 'the only world we've ever known.'

Georgia O'Keeffe's flower paintings are often assumed to be sexual, though the artist claimed she was simply interested in highlighting the beauty of flowers that most people neglect

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Apollo astronauts left items in the moon's 'toss zone,' including golf balls, family photos, and bags of human waste, to make room for lunar rocks.

Larger animals like giraffes, elephants, and blue whales have developed a unique defense against cancer, a phenomenon known as Peto's Paradox

Listen to an in-depth conversation on the links between Parkinson's disease and herbicide exposure and the challenging pace of scientific investigation.

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

While the sun's gravity keeps the planets in orbit, their gravity also pulls on the sun, causing it and everything else in the solar system to orbit around a mutual balance point called the barycenter—the true center of the solar system.

In preparation for this weekend's Eurovision finale, which is something like the World Cup of pop music, here's a young Céline Dion performing (for Switzerland?) at the 1988 competition.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in casualties, forces mobilized, and displacement of civilians.

The United States has had a tumultuous relationship with Cuba since its 1959 revolution, highlighted by a nuclear crisis and a decades-long trade embargo.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

The Ramones' 'Pet Sematary,' the theme song for the Stephen King novel of the same name, was written while the band was admiring the writer's collection of horror memorabilia.