Earth Science

Researchers discovered the oldest meteorite impact crater known to science in Australia. 

Oldest Known Impact Crater Discovered in Australia

The discovery bolsters the theory that meteorite impacts played an important role in Earth's early geological history

Microbes can grow in clouds and even divide in two.

A Brief and Amazing History of Our Search for Life in the Clouds

By collecting samples after climbing a high peak and firing rockets with special traps into the upper atmosphere, scientists have found microbes living in thin air

Scientists suggest finding extraterrestial intelligence is more likely than thought, arguing that complex life is not a cosmic fluke.

Intelligent Life May Be More Likely to Exist on Other Planets Than Previously Thought, Scientists Say

Researchers present an alternative to the long-held “hard steps” theory to explain the evolution of complex life, suggesting it’s the natural outcome of a habitable environment rather than a lucky break

Crater Peak (photographed here on February 7, 2025) is the most likely site of a future Mount Spurr eruption.

'Volcanic Unrest' at Alaska's Mount Spurr Suggests 50-50 Chance an Eruption Could Be Coming

Volcanologists are closely monitoring the 11,070-foot-tall stratovolcano, located roughly 75 miles from Anchorage, after a recent uptick in earthquakes

By studying seismic waves, researchers are revealing more about the mysterious nature of our planet's inner core.

Earth's Inner Core Is Changing Shape, Study Finds, Indicating Even More Dynamic Shifts Deep Within Our Planet

Seismic wave data previously suggested the Earth’s hot inner core is slowing its spin. Now, researchers say it’s also deforming around the edges

Residents of Summerville have reported sightings of a mysterious glowing light over the town's old railroad tracks. The pictured tracks, while not the "haunted" site, were studied in an effort to determine the source of the 1886 Charleston earthquake.

The 'Ghost' Haunting This South Carolina Town Might Have an Earthly Explanation, Scientist Says

In a new research article, a seismologist argues that earthquakes are the reason for the mysterious lights associated with a local urban legend in Summerville

Embers from the Eaton Fire fly down a residential street in Altadena, California, on January 8.

How A.I. Can Help Humans Battle Wildfires, From Advanced Camera Systems to Forecasting Models

A variety of new technologies aim to improve wildfire detection and help map the spread of blazes

A scanning electron microscope image shows sodium carbonates in a sample from the asteroid Bennu. Each needle is less than one micrometer wide by five to ten micrometers in length—for comparison, a human hair is about 100 micrometers wide.

Scientists Discover Traces of Salt Water and Building Blocks of Life in NASA's Samples From the Asteroid Bennu

Two new papers describe hints to a brine-filled environment on the 4.5-billion-year-old space rock and the presence of amino acids, offering clues to how early Earth got its ingredients for life

A firefighter works as the Hughes Fire burns north of Los Angeles on January 22.

Welcome to the Pyrocene

Human use of fire has produced an era of uncontrolled burning

Dinosaurs only started to live large after a mass extinction altered the planet in their favor.

How a Mass Extinction Driven by Ancient Volcanoes Led to the Age of the Dinosaurs

Roughly 201 million years ago, drastic changes extinguished many forms of life and led to conditions that allowed the terrible lizards to thrive

A visitor examines a watch crafted by Abraham-Louis Breguet for Marie Antoinette.

These Fascinating Objects Show How the Palace of Versailles Drove Surprising Scientific Advances in the 17th and 18th Centuries

Titled "Versailles: Science and Splendor," a new exhibition illustrates how the royal court encouraged innovation during the reigns of Louis XIV, Louis XV and Louis XVI

Tetiaroa is a haven for wildlife, including sea turtles, crabs, seabirds, sharks, coral and fish.

Marlon Brando Wanted to Build a ‘University of the Sea.’ These Scientists Are Bringing the Late Actor’s Vision to Life

On Tetiaroa, a vibrant coral atoll dotted with sandy islets, archaeologists, marine biologists and cultural practitioners are working together to improve understanding of a unique ecosystem

Stories in a wide variety of scientific disciplines made our list this year.

The Ten Most Significant Science Stories of 2024

From a total solar eclipse that captivated our continent to record temperatures that scorched the planet, these were the biggest moments of the year

A solar flare erupts from the sun on June 20, 2013, seen at the left of the image.

Superflares Erupt From Sun-Like Stars Roughly Every 100 Years, a New Study Finds. Is Our Sun Overdue for a Massive Blast?

Solar flares and coronal mass ejections could cause serious damage to telecommunications systems, satellites and power grids here on Earth

Smithsonian magazine’s top science titles this year.

The Ten Best Science Books of 2024

From a deep dive on a fatal space shuttle disaster to a study of a dozen iconic trees, these are our favorite titles this year

A man spotted the scar while looking at Google Earth satellite imagery earlier this year.

A Man Noticed a Strange Shape on the Ground on Google Earth. It Turned Out to Be the Mark of an Undetected Tornado

Geoscientists in Australia suggest a strong tornado swept across the Nullarbor Plain in November 2022 and made the 6.8-mile-long scar on the landscape—without anyone noticing

A stock illustration of an asteroid near Earth. Astronomers believe our "mini-moon" originated from the Arjuna asteroid belt.

Earth Bids Goodbye to Its 'Mini-Moon' as Astronomers Investigate Where Our Planet's Asteroid Companion Came From

Preliminary research suggests asteroid 2024 PT5, which stuck around Earth for almost two months, has lunar origins

Allosaurus

This Captivating Guide Uncovers the History and Mystery of Dinosaurs in 50 Fossils

A paleontologist at the Natural History Museum in London chronicles the age of the famous and fascinating massive reptiles

A sample of ocean crust, turned upside down, reveals tubeworms and other organisms.

In a First, Scientists Find Animals Thriving Beneath the Ocean Floor in Hidden Habitats Near Deep-Sea Vents

The discovery of worms and snails confirms that these still-mysterious, dark hotspots of life extend beyond what’s visible above the crust

A color-enhanced photo of Pluto that was captured by the New Horizons spacecraft in 2015

The Seven Most Amazing Discoveries We’ve Made About Pluto

Though technically not a planet, it has as rich geology as any of its planetary siblings in the solar system

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