Low-power Wi-Fi signal tracks movement - behind walls

The comic-book hero Superman uses his X-ray vision to spot bad guys lurking behind walls and other objects. Now we could all have X-ray vision, thanks to researchers at MIT's Computer Science and Artificial Intelligence Laboratory.

Here's your chance to talk to aliens

As every UFO fanatic knows, the Earth received a short message from outer space back in 1977 - and now you've got a chance to reply.

Leap year bug hits TomTom satnavs

TomTom's apologized for a leap year bug that's caused some of its satnav systems to malfunction.

Bumpers don't help iPhone death grip

The 'death grip' that interferes with a smartphone's signal is real and widespread, according to scientists at the University of Bristol.

Junk-tracking satellite sends back first signals

Boeing has received the first signals from its Space Based Space Surveillance (SBSS) satellite following its launch on Saturday night from Vandenberg Air Force Base, California.

Steve Jobs tells angry iPhone 4 owner to "relax"

Apple CEO Steve Jobs has reportedly told an agitated iPhone 4 owner to stop worrying about poor reception and "relax."