In late February, Ukraine began a long-planned 72-hour test to unhook its electricity grid from Russia’s. Then the invasion started.

US nuclear scientists have achieved the long-sought goal of a fusion ignition—but don't expect this clean technology to power the grid yet.

The sci-fi author writes about the 25th century and teaches college students about the 15th. The past we think we know is wrong, she says—and so is the future.

Kids as young as 12 are now authorized for Pfizer’s vaccine. That could make it easier for campuses to reopen this fall—but it introduces a whole new set of decisions.

Used electric vehicle batteries could be the Achilles' heel of the transportation revolution—or the gold mine that makes it real.

AGU awards its highest honors for excellence in scientific research, education, communication, and outreach.

Hillary Schieve invests in cryptocurrencies herself, and she sees the technology as a way to improve government services.

The deposit could power millions of clean-energy car batteries. There’s just one roadblock: a rare, fragile species of buckwheat, for which a mine might mean extinction.

Gone are the easy, thoughtless choices of hot vax summer. Making decisions that balance safety and sanity just got a lot more complicated.

In 1972, a photo of a Swedish Playboy model was used to engineer the digital image format that would become the JPEG. The model herself was mostly a mystery—until now.

At this year’s UN climate conference in Egypt, activists are unable to demonstrate without permission, limiting their ability to voice criticism of the COP.

The deposit could power millions of clean-energy car batteries. There’s just one roadblock: a rare, fragile species of buckwheat, for which a mine might mean extinction.

Scorching temperatures in the Golden State are a test case for a more flexible energy grid.

An alarming spike in the second-most-damaging greenhouse gas is giving wind to a once fringe idea: Take it out of the air.

When temperatures rise, plants mysteriously lose their ability to defend against invading pathogens—but there may be a fix.

Entrepreneurs are devising innovative ways to reuse spent electric vehicle batteries. One promising idea is storing power from solar and wind farms.

The court’s decision in West Virginia v. EPA doesn’t go as far as some climate activists feared it might. But it’s a road map for future challenges.

While the Russian military is unlikely to target Ukrainian reactors, a stray missile or a power outage could spark a disaster.

Battery packs are designed to stuff a lot of energy into a small amount of space. Some think they should be built for recycling too.

Researchers think these flexible semiconductors will be able to monitor your heartbeat or tell you whether your milk has spoiled.

A new approach to geothermal energy makes it possible to tap the energy of hot rocks just about anywhere. A pilot plant in Nevada is now helping to power Google data centers.

Russia’s attack is literally tearing the country apart, polluting air and water. Ukrainians will suffer long after the conflict ends.

Active users have fallen by more than 1 million since the exodus from Elon Musk’s Twitter, suggesting the decentralized platform is not a direct replacement.

Used electric vehicle batteries could be the Achilles' heel of the transportation revolution—or the gold mine that makes it real.

When it comes to forecasting the elements, many seem ready to welcome the machine. But humans still outperform the algorithms—especially in bad conditions.

Manufacturers say the devices remove 99 percent of viruses. Researchers say such claims are unproven, and cheaper air filters are more effective.

Scientific advances have renewed hopes of “unlimited energy,” while economic studies suggest that fusion power will be more costly than wind or solar.

As the Supreme Court considers the fate of American wetlands, Annie Proulx’s Fen, Bog, and Swamp offers an elegiac love letter to overlooked ecosystems.

The incident in San Francisco cost first responders valuable time, and underscores the challenges Cruise and other companies face in launching driverless taxis.

Balaji Srinivasan—technologist, investor, prophet, troll—says let the old world sink. Find your tribe and build your bespoke society, or get left behind.

Tiny wobbles in Earth’s gravitational field could help detect big tremors faster, but they’re hard to tease out from the planet’s seismic noise.