Christian Marclay’s “The Clock” and Ragnar Kjartansson’s “The Visitors” are two of the best artworks of this century — the ...

The Doomsday Clock now stands at 89 seconds to midnight, the closest to catastrophe in its nearly eight-decade history.

Atomic scientists moved their "Doomsday Clock" closer to midnight than ever before on Tuesday (January 28), citing Russian nuclear threats amid its invasion of Ukraine, tensions in other hot spots, ...