While medical centers use ultrasound daily, so far this technology is not capable of observing body tissues at the scale of ...

While medical centers use ultrasound daily, so far this technology is not capable of observing body tissues at the scale of cells.

NASA photographer Josh Valcarcel captured Zena Cardman in a pose evocative of one of the first female astronaut's portraits.

Dozens of companies are building robots that look like humans. One of them is training a machine to be a butler and will soon ...