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

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 ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS ...

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

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, ...

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

Giving immunotherapy earlier in the day can significantly extend patients' survival, compared to giving treatment later in the day, a new study of lung cancer shows.

Pumas in Patagonia, Argentina are eating penguins in a national park — and it's changing how the big cats are interacting ...

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

An excavation at the City of David in Jerusalem unearthed a 1,300-year-old medallion decorated with a seven-branched menorah on each side.

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