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.

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

Mars and Earth were the closest they get in 60,000 years on August 27, 2003. But every August since then, an email hoax does the rounds saying it's happening again.

Scientists postulate that there is indeed truth to this extravagant and mind-boggling claim.

Mars and Earth were the closest they get in 60,000 years on August 27, 2003. But every August since then, an email hoax does the rounds saying it's happening again.

Scientists postulate that there is indeed truth to this extravagant and mind-boggling claim.

Piers Cunningham delves into the fascinating history of observations of the Transit of Venus with Ian Storey, lecturer in information systems at RMIT and Graeme Hanigan, convener of Citizens for Science.