Tiny solar-powered tags can now track monarch butterflies across North America

Tracking butterfly migration via the pollen they collect

Trillions of insects migrate around the world each year, but many are too small to track with physical trackers, leaving their migratory routes a mystery. In recent years, scientists have utilized pollen grains collected from butterflies to analyze which plants that pollen originated from—providing substantial data to infer the insect's specific route. Research has shed light on many insects' migrations since, including the Painted Lady butterfly. Read more and see a map here.

How birds are becoming research assistants

Through the creation of tiny sensors easily placed on their bodies, birds have served as research assistants for various scientists. With untold numbers of birds sending back data, researchers have achieved greater insights in long obscure areas of meteorology, ecology, and more. For example, weather scientists use high-flying birds to outline the height of the planetary boundary layer, while conservationists track gulls to protect migrating whales. Learn more here.

Swarms of mechanical bees may one day support natural pollination

Engineers are racing to create tiny robot bees that can be programmed to mimic natural bee behavior, helping in specific scenarios such as indoor farming and space agriculture. Battery life challenges may be solved by having these robots accompanied by a nearby "mother" drone power supply.

Track individual sharks around the world in real time

OCEARCH provides essential data on shark populations and marine ecosystems to support broader conservation efforts. Foster your understanding of marine ecosystems by exploring different species and their movement.

As of 2025, scientists at B2 study the heat tolerance of cacao and coffee trees

The research at Biosphere 2 has led to the development of low-cost plant monitors, which can be provided to farmers worldwide to enable more precise monitoring of crops. Geodesic domes built within the ocean biome are used to investigate the best architectural structures for repopulating degraded reefs.

The 'Where's George?' project tracked a trail of $1 bills across the US

Over a decade ago, a group dedicated its time to tracking $1 bills in the US. They would stamp single bills with the phrases “currency tracking project” and “Track me at WheresGeorge.com” in a practice they dubbed “Georging.”

Tracking the latest meteorite falls on Earth

Roughly 50 tons of meteorite material arrives on Earth every day, and many of the larger objects survive the hot temperatures of the atmosphere and make landfall. This tracker compiles data from survey sites across the globe to present the latest...

Watch a salamander grow from fertilization to hatching

New microscopy techniques have allowed scientists to image the development of animal embryos with unprecedented detail. This six-minute time-lapse reveals the development of a salamander from initial fertilization to hatching from an egg.

Learn about solar neutrinos—about 70 billion of which pass through your thumbnail every second

About 100 quadrillion sextillion (10³⁸) of these elusive particles are created in the core every second, making up about 1% of the sun's total energy output. Because they seldom interact with normal matter, highly specialized equipment is needed to detect them, allowing scientists to probe what is happening in the solar core.

Contactless credit cards descend from a batteryless Cold War listening device

The same physics that let Soviet spies eavesdrop on the US ambassador in 1945 underlie contactless payment methods today. The device is a passive chip powered wirelessly by incoming radio waves.

A solar-powered device with googly eyes is pulling trash from Baltimore's harbor

Mr. Trash Wheel uses a conveyor belt to scoop debris from the surface of Baltimore's Inner Harbor before it reaches the Chesapeake Bay, and it runs on a combination of water current and solar power.

Learn why the Montreal Protocol may help prevent millions of cancer deaths

By restoring the ozone layer and reducing ultraviolet exposure, full implementation of the Montreal Protocol is expected to prevent about 443 million cases of skin cancer, 2.3 million skin cancer deaths, and 63 million cases of cataracts among Americans born from 1890 to 2100.

How 3D printing inside cells paves the way for microscopic machines

In 2026, scientists in Slovenia developed a method to 3D print a small elephant, several microscopic geometric objects, and barcodes for cell labeling within living human cells, which continued to grow and divide thereafter. The experiment opens the door to fabricating devices within cells to study and manipulate cellular functions.

Space-based solar power systems may beam energy to Earth

Researchers have successfully collected power from solar panels on a plane and transmitted it to a receiver on Earth's surface, achieving a milestone for space-based energy. The proof of concept is a precursor for a satellite-based solar farm that would transmit energy 24 hours a day.

Do sleep-tracking apps work?

Can technology help us sleep better? As wearables and apps promise to optimize our nights, this New York Times investigation reveals some troubling findings after columnist Brian Chen used a wearable for two weeks to track his sleep. He discovered that sleep trackers not only provide frequently questionable data but can also paradoxically worsen sleep problems by causing users to obsess over their metrics — a new condition researchers are calling ‘orthosomnia.’

Citizen scientist volunteers can help identify invasive species in wilderness areas

Launched in 2005 by the Center for Invasive Species and Ecosystem Health at the University of Georgia, EDDMapS allows users can document invasive species sightings in the US and Canada in a web-based mapping system. As of February 2026, EDDMapS has over 8.6 million records, all freely available for querying.

Some North American bats can glow in the dark

After examining 60 museum specimens from six different species, scientists found that all of them emitted light after being exposed to ultraviolet radiation. Researchers are perplexed by this natural phenomenon and are currently unable to deduce the reason behind it.

How the US first installed an electronic fence along the southern border

The US Border Patrol's first automated surveillance system launched in 1970 with 177 ground sensors installed along a single section in California. The sensors had already been used in Vietnam, along the so-called McNamara Line, and were connected by radio transmitters to magnetic-tape computers. They were implemented to target people defined by law and deportable aliens.

Scientists seeking gut insights are attaching flatulence sensors to volunteers' underwear

This fart-tracking device detects gas generated in the gut, providing insights about gut microbial activity. The underwear sensors measure a component of what is technically called flatus—digestive system gas.

An engineer tracked his moods for decades and helped researchers identify SAD

Civil engineer Herb Kern had bipolar and would record his moods dating back to 1967. He noticed the seasons were a major factor in the increase and severity of his episodes. By reaching out to researchers at the National Institute of Mental Health, Kern became the first human to confirm increased melatonin levels during winter and to receive bright light therapy.

Monsanto got its start in the early 1900s producing saccharin

The company was originally called Monsanto Chemical Works and was founded in 1901 by John Francis Queeny who was then a wholesale drug buyer. He named the company Monsanto for his wife's maiden name. At first, the company began producing saccharin with borrowed equipment and secondhand machines, aiming to produce domestically what was then being imported from Germany. (Some users may encounter a paywall.)

Iceland, the last mosquito-free country, detected them in 2025

Recently several of the mosquito species Culiseta annulata were documented in Iceland—the last country that had not yet seen them, underscoring that climate change is shifting the bugs' patterns. Mosquitoes can hide out in human structures to survive icy temperatures. The bugs are now known to live everywhere except the continent of Antarctica.

Track the location of the Voyager probes, currently between 13 and 15 billion miles away from Earth.

Project STORMFURY explored modifying hurricanes with silver iodide

Between 1962 and 1983, researchers at the National Oceanic and Atmospheric Administration investigated whether weakening and controlling hurricanes was possible. The investigation showed very few hurricanes met the criteria for modification, despite successfully weakening two storms.

Anticipating moon tourism by 2000, Pan Am issued 'First Moon Flights' club cards

More than 93,000 cards were issued between 1968 and 1971, creating a waitlist that began when Gerhard Pistor, an Austrian journalist, visited a Viennese travel agency to request a flight to the moon. The cards were issued at no cost and numbered in the order they were issued.

See the world's first-known photo of a wild white Iberian lynx

Described by the photographer as the "white ghost of the Mediterranean forest," the lynx is a vulnerable species. Catching the genetic anomaly on camera is a testament to conservation efforts that began in 2011.

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

Tattoos remain visible on your skin thanks to immune cells called macrophages

Fish populations in the Great Barrier Reef have increased after installing waterproof speakers on the ocean floor that played recordings of sounds from healthy coral reefs.

See how each of the more than two million known species relates to each other—and to common ancestors—in this zoomable tree of life.

Learn how monoclonal antibodies, which mimic the body's antibodies, can fight diseases like Ebola.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

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

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

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.

Chaos theory—informally known as the butterfly effect—is the reason why weather forecasts are presented with probabilities rather than certainties.

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.

The history of many kitchen appliances involves unexpected discoveries and applications, including wartime radar turned hamster defroster and replacing an 'ice king' with heat-stealing boxes.

A century of Billboard issues documenting the evolution of popular music.

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Watch how algorithms can be designed to train themselves and self-improve without human input, to the point where the optimized code is too complex for programmers to understand.

In 2009, the nation was gripped by the story of a missing young boy who was believed to be floating over Colorado in a homemade balloon, until it was revealed that he was at home the whole time.

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.