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Astronomers are proposing a new, more quantitative definition of what makes a planet. The new definition looks more directly at the object's mass — but it would still leave Pluto out of the running.

The discovery of butchered bones belonging to a glyptodont, a giant relative of the armadillo, suggests that humans were living in Argentina 20,000 years ago.

A new paper suggests that comet C/2023 A3, also known as Tsuchinshan-ATLAS, may completely break apart before it reaches its closest approach to Earth in October. If the comet does survive long enough to reach us, it should be bright enough to spot with the naked eye.

Psilocybin, the active ingredient in magic mushrooms, reduces the synchronicity within a brain network responsible for reflection and the sense of self.

Reports of a daylight fireball and loud booms across New York City and New Jersey suggest a meteor entered the atmosphere above the city and traveled west at 38,000 mph, NASA says.

Researchers say the screen can work both indoors and outdoors, and can be adjusted to become more or less transparent depending on user needs.

New studies, which utilized AI to monitor the effects of climate change on Earth's spin, have shown that our days are getting increasingly longer and that our planet will get more wobbly in the future. These changes could have major implications for humanity's future.

The palm-sized carving depicts a Neolithic woman wearing an ornate headpiece.

Scientists uncovered a species of fungi that had never before been seen in humans. They say warmer temperatures could drive its evolution, for the worse.

A strange class of space rock known as a "dark comet" has qualities of both asteroids and comets — and the hard-to-spot objects may pose a larger threat to Earth than we thought, according to new research.

Surprising new research has revealed why the world's longest-living vertebrate, the Greenland shark, has such a lengthy lifespan. The findings could have big implications for the species' future.