More than 100 people have died in devastating flash floods in Kerr County, Texas. But what caused this extreme weather, and will events like this get more common?

French and Egyptian researchers are making a "digital twin" of the Lighthouse of Alexandria in Egypt after lifting its ancient submerged blocks out of the Mediterranean Sea.

Glacial melt could increase volcanic activity in North America, New Zealand and Russia, spewing greenhouse gases into the atmosphere.

Roughly 4,000-year-old bones from Chile contain genetic evidence of leprosy, suggesting that a rare form of the bacteria that causes the disease may have been circulating in the Americas and long before the Europeans arrived.