CrossFit: a new religion? The Food Computer, adios Cassini and the secret history of the iPhone.

With an estimated 4 million daily practitioners worldwide and an emphasis on the power of shared experience and community, CrossFit shows many of the characteristics of an emerging modern religion, a theologian says.

It's a mini AI-powered hothouse where UV light exposure can be carefully controlled to produce nutritious crops that taste great. Risto Mikkulainen is one of those responsible for designing the AI software.

It's time to farewell Cassini, the unmanned spacecraft that revealed so much about Saturn and her moons.Plus scientists discover another possible explanation for antibiotic resistance.

Tech journalist Brian Merchant reflects on the first decade of the iPhone – how it's not only changed our lives, but revolutionised the way digital devices are marketed and sold – in his book The One Device.

The sand collector, hurricane helpline, compression clothing, sporting success at your fingertips, and why don't poisonous frogs poison themselves?!

Tonny Brinkman is a 93-year-old sand fan who has donated her collection of thousands of different sands from all over the world to the Auckland War Memorial Museum. Curator Hugh Grenfell talks us through the collection.

Which tech issues are dominating the political agenda in the run-up to the election? Also Zello - the app that turns your smartphone into a walkie-talkie and will Christchurch's all-electric vehicle car sharing scheme take off?

Could very tight clothing improve your athletic performance? We unwrap the truth with David Cox, who's been investigating such claims for The Guardian.

That's the thrust of some intriguing research looking into the relative lengths of your ring finger and your index finger... the second, pointy one.