CHICAGO -- As Russian forces invade his home country of Ukraine, Northwestern University professor Yohann Petrovsky-Shtern worries about his family back home. They have all taken shelter including his ...
In this animated video, historian Matt Lewis tells the story of Ukraine's turbulent and often surprising history. Beginning ...
Mathematician Grigori Perelman solved the Poincaré conjecture, and then rejected the $1 million prize that came with it.
On a steamy August afternoon in Washington, D.C., the National Guard was on its way and Julia Ioffe arrived for lunch at a strip mall in the suburbs. Ioffe, 43, a Russian American journalist, said the ...