A new model has predicted that Earth's population is likely to decrease in all scenarios across the next century and will peak nowhere near the 11 billion previously forecast.

Scientists have observed that some of Neptune's Trojan asteroids are deep red, possibly revealing what asteroids may have been like in the early days of the solar system.

NASA's James Webb Space Telescope measured the temperature of the Earth-like planet TRAPPIST-1b and found that it is too hot for humans and likely has no atmosphere.

Some people live to be well beyond 100. But what genes and environmental factors contribute to such extreme longevity, and what can we learn from other long-lived animals?

Researchers have serendipitously discovered that a key step in photosynthesis can occur much earlier in the process than previously believed.

Paleontologists have suggested that thin, lizard-like lips concealed the gigantic teeth of T. rex and other predatory dinosaurs, but not all experts are convinced.

Three species of marine worm have been described by scientists in Japan, who named them after folkloric demons because of their spooky glow.

A new 13-sided shape is the first example of an elusive "einstein" — a single shape that can be tiled infinitely without repeating a pattern.

Two high school seniors have presented their proof of the Pythagorean theorem using trigonometry — which mathematicians thought to be impossible — at an American Mathematical Society meeting.

The bounds on Ramsey numbers, which describe relationships between nodes in a network, have been narrowed.

The connections between different regions of the brain responsible for language processing depend on which language you grew up with.

Why we wear green and other holiday curiosities.

Deal This iPad is the cheapest way to use the App Store, and you can save up to $80 at Amazon & Walmart.