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Weather

NASA’s Solar Dynamics Observatory (SDO) captured this image of extreme solar activity on May 10, 2024.

The U.S. Ran Its First Space Weather Preparedness Drill—Here’s How It Went

Ironically, the exercise last May was interrupted by a real scenario, when Earth was hit by the strongest solar storm in two decades

The sun launched a powerful solar flare on May 14, 2025, captured here by NASA’s Solar Dynamics Observatory.

Sun Launches Its Strongest Solar Flare of the Year So Far, Causing Radio Blackouts Around the World

The new sunspot responsible for this powerful blast is rotating into view, which could bring more solar activity—and potential aurora-causing coronal mass ejections—to Earth in the coming days

The first image in visible light of green auroras on Mars (left), compared to the night sky of Mars without auroras.

See the First Visible Auroras Captured on Mars, Glowing a Hazy Green Above the Planet

Scientists directed NASA’s Perseverance rover to take an image of the Martian sky after a solar storm in hopes that an aurora would show up

A view of the sky during the Eta Aquariid meteor shower over the Fred C. Babcock/Cecil M. Webb Wildlife Management Area in Florida

How to Watch the Peak of the Spectacular Eta Aquariid Meteor Shower

The shower will peak during pre-dawn hours in early May, as fast-moving meteors trail across Earth’s atmosphere, thanks to debris left behind by Halley’s Comet

For 25 of the 26 years the American Lung Association has reported State of the Air, Los Angeles—pictured here in smog—has been declared the city with the worst ozone pollution in the United States.

Nearly Half of Americans Still Live With High Levels of Air Pollution, Posing Serious Health Risks, Report Finds

The most recent State of the Air report by the American Lung Association found that more than 150 million Americans breathe air with unhealthy levels of ozone or particle pollution

People gather on Kaanapali Beach, a popular tourist destination near Lahaina, Hawaii, in August 2024.

Destinations Hit by Natural Disasters Need Tourists Back—but Maybe Not in the Same Way as Before

Places like Maui and Asheville, North Carolina, rebuilding after wildfires and hurricanes, are doing so with a mind to sustainable tourism

NASA’s Perseverance Mars rover spotted a large dust devil (on the right) consuming a smaller, fainter twister (on the left in the foreground).

Watch a Spinning Martian Dust Devil ‘Consume’ Another in a New Video Captured by NASA’s Perseverance Rover

Tracking dust devils helps researchers learn more about Mars’ atmosphere, wind and weather conditions

Gopher tortoises are disappearing from Florida, primarily because of habitat destruction that's often tied to residential development.

A Hurricane Swept These Tortoises Across Miles of Ocean to a New Home in Florida—and Now, They’re Thriving

Park rangers say at least 84 gopher tortoises are now living at Fort de Soto Park near St. Petersburg. Prior to Hurricane Helene in September, the local population was around eight

A technician climbs a tower to locate lightning strikes in the study area on Panama's Barro Colorado Island.

Being Struck by Lightning Is No Big Deal for This Tropical Tree—the Zap Even Gives It a Boost

The almendro tree may have evolved to attract lightning, which helps clear more space for it to grow, according to new research

Reno’s downtown, where paved surfaces gather heat and buildings block cooling breezes, can feel stifling on a hot summer day.

Citizen Scientists Are Hitting the Streets of the Country’s Fastest-Warming Cities to Collect Detailed Temperature Data

The heat mapping of metros like Reno, Nevada, could be key to taming urban heat, saving lives and designing for a cooler future

Researchers studied the impact of extreme heat on older adults' "epigenetic clocks," which measure aging-related changes to DNA.

Extreme Heat Could Make Older Adults Age Faster by Altering Their DNA, Study Finds

Researchers compared genetic markers of aging to daily temperature records in areas across the United States and found that elderly people exposed to more hot days showed more rapid biological aging

Current experiments are focused on tomatoes, lettuce and other small-scale crops, with hopes to extend to high-calorie crops like grains and sweet potatoes in the future. 

Can Electro-Agriculture Revolutionize the Way We Grow Food?

A new technology is pushing the boundaries of farming by using electricity to grow crops without photosynthesis

Alaska’s hardiest residents have gathered around the frozen waterfalls of Valdez—some of them up to 900 feet tall—to hone their skills, test their mettle and celebrate the state’s tight-knit ice climbing community.

Learn to Ice Climb at Alaska’s Most Extreme Community Festival

For more than 40 years, Alaskans have been gathering in the tiny coastal town of Valdez to celebrate the art of climbing ice

Although the Donner-Reed party’s time on the Oregon Trail was filled with suffering, their story did little to slow westward migration.

On This Day in History

Donner Party Survivors Were Rescued on This Day in 1847 After Weeks of Frigid Conditions, Starvation and—Eventually—Cannibalism

Bad luck and poor decisions turned the already dangerous trek from Missouri to California into a fatal affair for roughly half of the Donner-Reed party

Chorus waves can produce high-energy “killer electrons” that can damage satellites.

Mysterious ‘Chirping’ Waves Detected 100,000 Miles Above Earth Are Surprising Scientists

Chorus waves, quick bursts of energy known to occur relatively close to Earth and around other planets, were found in an unexpected part of the magnetosphere, according to a new study

The Knickerbocker Theater's roof collapsed under the weight of snowfall, resulting in 98 deaths.

On This Day in History

Nearly 100 Washingtonians Died When a Theater Collapsed in One of the Largest Snowfalls Ever to Hit D.C.

The Knickerbocker Theater disaster, which took place on this day in 1922, killed 98 moviegoers and injured another 133

Whispers in the Breeze by Team Taiwan won third place—as well as the people's choice and artist choice awards—at the World Snow Sculpting Championship in Minnesota.

Check Out These Spellbinding Snow Sculptures—Before They Melt

In places like Colorado and Minnesota, international teams of talented snow artists are creating larger-than-life masterpieces from fluffy white powder

An artist’s visualization of WASP-127b

Astronomers Discover Supersonic Winds on a ‘Puffy’ Exoplanet, Forming a Record-Breaking Jet Stream

Moving at roughly 20,505 miles per hour along the distant world’s equator, it’s the fastest known jet stream that wraps around a planet

The Douglas C-54D Skymaster vanished during a routine transit flight from Anchorage to Great Falls, Montana, on January 26, 1950.

The Enduring Mystery of a Plane That Vanished in the Icy Canadian Wilderness With 44 People On Board

Seventy-five years ago, a Douglas C-54D Skymaster disappeared en route from Alaska to Montana. No trace of its crew and passengers, including a pregnant mother and her young son, has ever been found

The Mauna Loa Observatory in Hawaii recorded the highest annual jump in atmospheric carbon dioxide levels since its records began in 1958.

Hawaiian Observatory Clocks Highest Annual Jump in Atmospheric Carbon Dioxide Since Its Records Began 67 Years Ago

The change measured by the Mauna Loa Observatory was likely driven by wildfires and continued burning of fossil fuels, scientists say

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