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David Rankin, operations manager at the Catalina Sky Survey, keeps tabs on space rocks in search of new and potentially hazardous asteroids.

From a Remote Observatory, He’s Defending Our Planet. Get a Glimpse Inside the Life of a Doomsday Asteroid Hunter

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space rocks. Here’s what he has to say about that “high consequence” work, an interstellar comet and living with uncertainty

A rinkhals (Hemachatus haemachatus) in Hluhluwe, South Africa, performs a threat display. These snakes tend to live on the edges of human communities.

The High-Stakes Quest to Make Snakebites Survivable Took Leaps Forward This Year, With Promising New Avenues to Safer Antivenoms

A wave of fresh science is challenging a century-old treatment and offering hope to the people snakebites harm most—often far from hospitals and help

A Laysan albatross checks on its egg.

Stream the Beautiful Highs and Violent Lows of Albatross Life With This New 24-Hour Camera on Midway Atoll

You can see the large white seabirds dancing, preening, feeding and raising young—though the live feed might show a dark side of island living, too, with potential predation from invasive mice

Juvenile sunflower sea stars at the Sunflower Star Laboratory in Moss Landing, California. At this phase, each is less than an inch wide, but they can grow to be more than three feet across as adults.

A Deadly Pathogen Decimated Sunflower Sea Stars. Look Inside the Lab Working to Bring Them Back by Freezing and Thawing Their Larvae

For the first time, scientists have cryopreserved and revived the larvae of a sea star species. The breakthrough, made with the giant pink star, gives hope the technique could be repeated to save the imperiled predator

A dead tree stands with its bare, white trunk and branches in contrast to the greenery around it.

What’s Killing These Oak Trees in the Midwest? Conservationists Believe Drifting Herbicides Are to Blame

When Illinois landowners noticed tree deaths and diseases on their properties ramp up in 2017, they suspected industrial agriculture. A survey found herbicides in 90 percent of tree tissues

Earth’s magnetic field surrounds the planet, with illustrated field lines emerging from the north, in orange, and looping around to the south, in blue.

A Weak Spot in Earth’s Magnetic Field Is Growing, but Scientists Say Not to Worry. Here’s a Look at What Shields Us From Space Weather

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t pose a threat to life

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The Astronomical Problem of Space Junk

Chunks of satellites and pieces of debris falling from space are causing trouble down here on Earth

A long-exposure view of the Milky Way, seen from Brandenburg, Germany, is cut through by the light trails of passing satellites.

Giant Mirrors in Space Could Bring Sunlight After Dark, One Startup Says—and Astronomers Are Concerned

Critics argue the satellites, billed as a way to harness solar energy at night, could hamper sky observations and may pose a threat to human and animal health

Smithsonian magazine's picks for the best books about science in 2025 include Replaceable You, Dinner With King Tut and North to the Future.

The Best Books of 2025

The Ten Best Science Books of 2025

From “experimental archaeology” to the mysterious appeal of exploration, the wide-ranging subjects detailed in these titles captivated Smithsonian magazine’s science contributors this year

A digital illustration of an HIV-infected T cell. Once infected, the immune cell is hijacked by the virus to produce and release many new viral particles before dying. As more T cells are destroyed, the immune system is progressively weakened.

New Trials Hint That ‘Functional Cure’ for HIV May Be Within Reach, Helping Some Patients Achieve Lasting Remission

People infected with HIV must take antiretroviral drugs for life. But engineered antibodies appeared to suppress the virus for certain participants in recent trials in Africa and Europe

From a book to robots, the products all focus on microelectronics.

Engineers Say These Ten Holiday Gifts Will ‘Make Kids Think’

A team of Purdue students and faculty recommends these microelectronic-focused toys for developing STEM skills

Nineteen-year-olds Marta Bernardino and Sebastião Mendonça are developing a robot capable of reaching and reforesting areas where humans have been unable to.

Two College Students Are Building a Robot to Replant Burned Forests

Marta Bernardino and Sebastião Mendonça invented Trovador, a four-legged, A.I.-powered robot that can plant trees in hard-to-reach, wildfire-damaged terrain

Students learn anatomy from an Asclepius AI Table, which merges interactive elements and artificial intelligence.

Medical Students Are Learning Anatomy From Digital Cadavers. Can Technology Ever Replace Real Human Bodies?

From interactive diagrams to A.I. assistants, virtual tools are beginning to supplant physical dissections in some classrooms

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Why Are There So Many Shipwrecks in the Great Lakes?

Meet a maritime archaeologist who explores the historic ships and dugout canoes that lurk beneath the surface of her watery backyard

The Palos Verdes Kelp Forest Restoration Project near Los Angeles forms an ecosystem that is home to many creatures.

Underwater Forests Return to Life off the Coast of California, and That Might be Good News for the Entire Planet

Wondrous kelp beds harbor a complex ecosystem that’s teeming with life, cleaning the water and the atmosphere, and bringing new hope for the future

New research strives to understand what happens in the brain at the transitions between sleeping and being awake.

At the Mysterious Boundary Between Waking Life and Sleep, What Happens in the Brain?

Neuroscientists studying the shifts between sleep and awareness are finding many liminal states, which could help explain the disorders that can result when sleep transitions go wrong

Chubby the macaw arrived with self-plucking injuries, which are typically caused by stress, boredom, anxiety or life changes. Chubby was 22 at the time of being photographed in 2025, and she has since been adopted.

The Nation’s Biggest Animal Sanctuary Operates Under a Mantra to ‘Save Them All.’ How Could That Be Controversial?

Best Friends Animal Society has a sprawling campus in the canyons of Utah, but its influence has grown to reach almost every shelter in the country

Hyper-realistic reconstructions of Australopithecus afarensis (Lucy foreground, Selam background) by Élisabeth Daynès in the National Museum’s “People and Their Ancestors” exhibition, Prague

Meeting Lucy: How a World-First European Exhibition Brought Visitors Face to Face With the Fossil That ‘Shrinks Time’

Two Australopithecus fossils named Lucy and Selam made a rare trip out of Ethiopia for a 60-day display at the National Museum in Prague

The new world of information supplied by drones hovering above is allowing researchers to more easily measure whale size, body condition and health; to identify individual animals from features on their bodies; and more.

From Collecting Whale Snot to Capturing Surprising Behaviors, Aerial Drones Are Giving Scientists a New View of Sea Life

The robots can hover over marine mammals and gather all sorts of information in a way that’s less invasive to the animals than researchers trying to approach them by boat or plane

A bee buzzes by a hybrid magenta-and-yellow snapdragon.

Colorful Snapdragons in the Valleys of the Pyrenees Offer a Rare Window Into How Evolution Happens

Studying the ways that magenta and yellow flowers intermingle paints a vibrant picture of how the plants exchange genetic information—and what keeps each color variety unique

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