When Grecia Rivas graduated from a Tucson high school a few years ago, she thought her days in a classroom were over.

Twitter Inc's 140-character tweets are here to stay, Chief Executive Jack Dorsey said on Friday, ending speculation that the microblogging site might abandon one of its trademark features for a 10,000-character limit.  

Neanderthals may not have been as lucky as our human ancestors in the long run, but that doesn't mean the two subspecies didn't get lucky.

The head of a for-profit college has criticised “vested interests” and a “reactionary response to challenge” among established universities.

Artificial intelligence (AI) is the most promising technology that can change the world, said Facebook's CEO Mark Zuckerberg on Saturday.

Personal heaters are a summer survival tool for many office workers chilled to the bone by hyperactive ventilation systems — an act of self-defense against an epidemic of overcooling that is wasting energy and confounding comfort in not only offices but also large shops, schools and other buildings.

Locals start to move out of town in Wushan county, Southwest China's Chongqing municipality, 1993, one year before the construction started. Now this part of the old town is beneath the water

The most detailed look at Pluto's surface to date has revealed an unexpected range of mountains, glacial flows, smooth plains and other landscapes

Education Department may restrict common practice of for-profit colleges that prevents their students from suing them.