Images of a saturated desert metropolis startled the world, prompting talk of cloud ... whose saliva-built nests fetch high prices in China, people in Borneo compete to build them the most ...

Speculation about extraterrestrials is not all that new. There was a vibrant debate in 17th-century Europe about the existence of life on other planets.

Scott McLemee reviews Tessa Hill and Eric Simons’s At Every Depth: Our Growing Knowledge of the Changing Oceans.

Congress can designate either groups of people to whom Section 3 applies (such as people who fought for the Confederacy) or specific crimes that, upon conviction, would trigger disqualification ...