NASA says an extensive review of historical records found no evidence that Webb ever led or supported purges of government employees who were gay. But some astronomers think that's a pretty low bar.

The launch is a milestone in India's effort to foster a private space industry. The rocket, made by Hyderabad-based Skyroot, was aloft for about five minutes and reached peak altitude of 55 miles.

More than three years after his tweet, the U.S. government has formally declassified the image from one of its most powerful spy satellites.

Galaxies that existed soon after the Big Bang turn out to be surprisingly bright, a discovery that's both thrilled and puzzled scientists who study how the universe evolved over time.

NASA's Artemis moon rocket has finally launched after months of setbacks, from fuel leaks to hurricanes. If successful, the mission signals a big step toward returning humans to the moon.

The space agency has been trying for months to send its giant moon rocket on its first test flight. The goal is to send a crew capsule, with no astronauts on board, around the moon and back.

Witnesses saw a "flaming basketball" streaking across the sky, then heard a loud crash, then Dustin Procita's house went up in flames. But that may be a coincidence, not the fire's cause.

Details about the X-37B's 908 days spent orbiting Earth are scant. But with each new mission, we learn a little bit more about it.

Each week, the guests and hosts on NPR's Pop Culture Happy Hour share what's bringing them joy. This week: The Carmichael Show, Stephanie Williams' work for Marvel, The English and more.

A documentary crew with the History Channel initially made the discovery during a dive looking for World War II-era wreckage.

A scientific discovery could forever change China and the U.S. industrial balance.

In the wee hours of Tuesday morning, the moon fell completely into Earth's shadow and turned a shade of red — either an astronomical delight or Election Day omen, depending on who you ask.

The Mars Rovers Opportunity and Spirit were expected to remain operational for 90 days. Fifteen years later, Oppy was still roving, as the new documentary Good Night Oppy chronicles.

The dark patches, known as coronal holes, are regions where solar wind escapes more quickly and readily into space. Geomagnetic storms can disrupt GPS and hurt the power grid.

A piece of what used to be a Russian satellite was coming uncomfortably close to the International Space Station. Space junk is a growing problem and has major implications for satellite services.