A study by Copenhagen's Happiness Research Institute finds giving up Facebook leads to increased happiness. Or is the problem too much screen time in general?

Australian researchers wonder how roos can eat heaps of grass but not emit nearly the amount of methane as cows.

Australian researchers wonder how roos can eat heaps of grass but not emit nearly the amount of methane as cows.

Fancy an impersonal hospitality experience, without the human touch? The Henn-na Hotel near Nagasaki is staffed by a managerie of robots, including an English-speaking dinosaur at reception.

Fancy an impersonal hospitality experience, without the human touch? The Henn-na Hotel near Nagasaki is staffed by a managerie of robots, including an English-speaking dinosaur at reception.

Startup Zerodium awards $1 million to hackers who found security vulnerabilities in Apple's iOS. But Zerodium won't necessarily tell Apple how the hack was done.

Startup Zerodium awards $1 million to hackers who found security vulnerabilities in Apple's iOS. But Zerodium won't necessarily tell Apple how the hack was done.

Start-ups grapple with how to retain users who love their free service, but don't want - or need - to upgrade to a paid version.

Start-ups grapple with how to retain users who love their free service, but don't want - or need - to upgrade to a paid version.

A Kiwi engineer named Jono Williams has built himself the ultimate man cave.