An analysis of a 700-year-old ring reveals a unique reddish-purple sapphire set in 18-karat gold with a lion decoration.

The test, performed by the U.S. military's Defense Advanced Research Projects Agency (DARPA) as part of its Persistent ...

About 2,000 feet deeper than the Grand Canyon, Hells Canyon was rapidly carved when a lake spilled over about 2.1 million ...

A global analysis deep in soil found 20% of plants studied have an unexpected deeper set of roots more than 3 feet ...

The summer solstice, the longest day of the year in the Northern Hemisphere, falls on June 20 this year in North America, and ...

Genetic analysis of 60 people buried in a Stone Age cemetery has revealed two clans headed by women that spanned 10 ...

A fiery letter written by Albert Einstein in 1954 is going to auction. The letter details Einstein's thoughts on his part in ...

Looking to inspire the next generation of curious minds? These are our picks of the best popular science books for children ...

Record carbon emissions mean that the planet's carbon budget could be exceeded in as little as three years, according to a ...

NordVPN offers a number of different price plans with varying features and benefits so you can pick the level of protection ...

Weather forecasters have warned of extreme and dangerous temperatures as a major heat wave sweeps across the central and eastern U.S. states.

Asking AI reasoning models questions in areas such as algebra or philosophy caused carbon dioxide emissions to spike ...