Simon Mulvany campaigns for healthy bee populations, reduced use of pesticides and truth in advertising. He explains to Piers why bees are disappearing around the world and the serious threats posed to food security.

Our weekly news round-up: Rosetta comet orbiter to crash land in September; Our Sun's big black hole; The Zuck's wary of malware; Shootings broadcast on FB Live; Scientists find the purpose of sleep; Aussies are big adopters of digital tech; Nintendo announces mini NES console, preloaded with 30 classic games; DARPA software to find and fix code vulnerabilities.

Cornell University astrobiologists reckon we should rethink preconceptions about where alien life might exist. They're intrigued by hydrogen cyanide rain on Titan.

As Sydney upstart Whooshkaa lands a deal with Facebook, we look at different options available to the world's growing horde of podcasters, whose problem remains - how to be discovered.

Niantic's augmented reality game is taking the world by storm. The biggest game launch ever.

Our weekly news round-up: ID theft a growing problem in Oz; Google Play apps vulnerable to Viking Horde malware, botnets; Bixpy's compact and portable jetdrive for water sports; 'Remove Debris' demonstrator to launch from ISS in 2017; Australian tests for Toyota Murai hydrogen cars; High (and low) tech car thieves; Pain-free dental operations; Ashley Madison leaning on clients; Password sharing is a federal crime in US; Juno safely in orbit around Jupiter but images and science data won't arrive until September.

Cornell University astrobiologists reckon we should rethink preconceptions about where alien life might exist. They're intrigued by hydrogen cyanide rain on Titan.

Our weekly news round-up: ID theft a growing problem in Oz; Google Play apps vulnerable to Viking Horde malware, botnets; Bixpy's compact and portable jetdrive for water sports; 'Remove Debris' demonstrator to launch from ISS in 2017; Australian tests for Toyota Murai hydrogen cars; High (and low) tech car thieves; Pain-free dental operations; Ashley Madison leaning on clients; Password sharing is a federal crime in US; Juno safely in orbit around Jupiter but images and science data won't arrive until September.

The US space agency will fund extensions to long-lived projects, including Mars rovers and orbiters, New Horizons in the Kuiper Belt and the Dawn spacecraft orbiting Ceres.

Why it's about to take twice as long to mine the digital currency.