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.

A bizarre object called "the Cow" is the flattest explosion ever detected, and the first example of a rare phenomenon called a fast blue optical transient (FBOT).

The 'Hawking radiation' emitted by black holes may be able to carry information after all, a new solution to Stephen Hawking's famous paradox suggests.

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?

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.

Inbreeding among an endangered population of orcas off the coasts of British Columbia, Washington and Oregon is a cause for concern.

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

A new analysis of a mummified "mermaid" found in a Japanese temple has revealed exactly what it is made from, and it's not what scientists thought.

From programs to build supersonic flying saucers to atomic bombs, here are the most fascinating declassified military and CIA secrets.

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.

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