Jakob Weizman, a Danish student at the Charles University in Prague, was taking an exam on Thursday when he started hearing gunshots and screams. His first instinct was shock, he…

Russian opposition leader Alexey Navalny was again absent from two scheduled court hearings conducted via video link on Friday, according to a statement from his team. Navalny’s team say the…

No species lasts forever — extinction is part of the evolution of life. But at least five times, a biological catastrophe has engulfed the planet, killing off the vast majority…

There has been no shortage of bleak climate news this year: unprecedented global heat fueled deadly extreme weather events, scientists issued dire warnings that next year may be worse still,…