MI6 launched Silent Courier, an online portal hosted on the dark web designed to let potential spies from Russia and elsewhere communicate with UK intelligence (Alex Wickham/Bloomberg)

Alex Wickham / Bloomberg: MI6 launched Silent Courier, an online portal hosted on the dark web designed to let potential spies from Russia and elsewhere communicate with UK intelligence  —  The UK’s foreign intelligence service, MI6, launched a new online portal which it says will allow potential spies in Russia […]

Did a comet wipe out an ancient civilization?

Researchers believe a fragmented comet that is thought to have exploded above Earth almost 13,000 years ago may have had a role in the disappearance of mammoths, mastodons, and most other megafauna (large animals) at that time, and in the vanishing of the Clovis culture from the archaeological record in […]