To some, METR’s “time horizon plot” indicates that AI utopia—or apocalypse—is close at hand. The truth is more complicated.

All 16 major sectors logged gains, while the broader small-caps and mid-caps jumped 2.8% each. Forty-six of the Nifty 50 constituents advanced.

Artemis II is a crucial step in NASA’s US$100-billion gamble to push the limits of space exploration. It’s the first attempt in more than half a century to send people beyond low Earth orbit, the ...

The Sun turns, but not in the way a solid object would. It has no hard surface, no fixed edge to follow. What scientists describe as solar rotation comes from watching patterns move across a glowing, ...