Scientists watching the nearby Fomalhaut star system have directly seen two protoplanets smash together for the first time. Then, they saw it happen again.

"We've been tracking children's growth from birth all the way through to adulthood, and the fastest period of growth is clearly the first couple of years during infancy," Sean Cumming, a professor in ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

Meta's work made headlines and raised a possibility once considered pure fantasy: that AI could soon outperform the world's best mathematicians by cracking math's marquee "unsolvable" problems en ...

Although the Ursids are active from Dec. 13 through Dec. 26, the peak night coincides with the winter solstice, which occurs at 10:03 a.m. EST on Dec. 21. Though the two events are totally unrelated, ...

Everyone's favorite interstellar comet, 3I/ATLAS, flew past Earth overnight, coming within about 168 million miles (270 million kilometers) of our planet.

Japan has deployed a system that fires laser beams with 100 kilowatts of energy — powerful enough to disable small drones. It was installed on board a 6,200-ton (6.3 million kg) warship.

Lava rubble at the bottom of the sea is acting like a giant "sponge" for carbon dioxide, ancient cores reveal. Ancient lava ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.

For the first time, scientists have created detailed, 2D maps of the sun's outermost atmosphere. This feat was accomplished ...

"Further follow-up at 3 and 6 months showed complete resolution of hypertension and a complete recovery from the stroke with ...

A new study reveals the likely origin of a mysterious spider-like pattern first spotted on Jupiter's moon Europa in 1998. The ...