Turns out, Ukraine has got cards. Just last fall, Russia was inexorably advancing on the battlefield, money was running out and President Trump was pressing a peace deal on terms that favored Moscow.

A soldier in the Kharkiv region of Ukraine. The country is offering its hard-won expertise and counterdrone technology to other countries. Turns out, Ukraine has got cards. Just last fall, Russia was ...

Company says work on Paul Erdős planar unit distance problem shows advance in AI reasoning OpenAI has claimed a further advance in AI reasoning after its technology successfully tackled an 80-year-old ...

James Harden couldn't stop Jalen Brunson on one end of the court or pick up the slack for Donovan Mitchell on the other. Sarah Stier / Getty Images NEW YORK — At their lowest point Tuesday night, the ...