If we want to communicate with other civilisations, it turns out that the laws of physics, the nature of interstellar space and a little common sense place surprisingly strict bounds on how this communication can take place.
Commuters in Africa, Europe and the US all follow the same fundamental pattern of travel between work and home, confirming a theory first suggested 20 years ago.
A patent that covers digital encryption of “objects” could bring copy protection to 3-D printing.
Neuroscientists Daniela Schiller says every time you recall a memory, it changes, and that can be a useful thing.
The blue LED might save more energy than just about any other technology.
Google is working on electronics-laden contact lenses to monitor glucose levels for diabetics. Welcome to the club.
Facebook says its ad targeting technology has irked its users and will be upgraded.
A chart shows the ascent of high-speed algorithmic trading, a phenomenon that is unnerving the financial markets.
Hiding covert messages in plain sight is becoming an increasingly popular form of cyber attack. And security researchers are struggling to catch up.
Life would be more secure if we used USB sticks, or even jewelry, to log into computer accounts, suggest Google engineers