In 1963, as the space race was taking off, the influential political philosopher Hannah Arrendt challenged scientists over their shift away from a humanistic focus to worlds beyond. She was responding to a question posed by the Encyclopedia Britannica: "Has man’s conquest of space increased or diminished his stature?". Replace man with human, and let's ask that question again 60 years on. As we penetrate, populate, and plumb the depths of space evermore.

Has space travel changed what it means to be human? A space archaeologist, poet, theologian, astrophysicist respond

Feed your mind. Be provoked. One big idea at a time. Your brain will love you for it. Grab your front row seat to the best live forums and festivals with Natasha Mitchell.

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You would think that times of intense progress and technological innovation are good for societies, but history shows that's when revolutions happen. Author and prominent CNN TV host Fareed Zakaria explains how rapid transformation of economy through technology often leads to an identity crisis and upheaval against the establishment. It's just too much too quickly. Sounds familiar? Yes – we in the middle of one. But Fareed Zakaria is optimistic it will all end well.

Fareed Zakaria on how economic and technological progress leads to revolutions

Since the announcement of the AUKUS plan for nuclear submarines, we’ve been hearing a lot about Australia’s maritime security. But as an island “girt by sea”, that security depends on much more than our military capability.

Girt by Sea — Australia’s maritime security

Australia's unique biodiversity, a product of almost 50 million years of glorious evolutionary isolation, is in freefall. The threats are not just the rabbits, the cane toads, the cats and foxes – the common culprits. Let's not forget the small but impactful smooth newt or the fierce red fire ants, and the many invasive weeds. Twenty new weeds will establish in the wild in Australia this year – and every year to come … unless things change. But is it possible to stop this ongoing invasion? How do we go about it?

Costa Georgiadis on how to stop Australia's invasion by feral species

Join Natasha Mitchell and guests for a robust conversation about forging a shared future between Black and White Australians through deeper understanding. Indigenous curator Margo Neale thought her nickname was "Abo" when she was a little girl. She didn't understand it was racist. Writing on politics and race for decades, David Marr thought he knew a lot — until he unearthed an family story. Thomas Mayo is thinking deeply about what's possible for Black and White Australia after the Voice referendum.

A new future for Black and White Australia —  Thomas Mayo, Margo Neale, David Marr with Natasha Mitchell

For more than half a century, the Anglican Diocese of Newcastle allowed and covered up an extensive network of paedophile priests who sexually abused hundreds of children in their care.

Has space travel changed what it means to be human? A space archaeologist, poet, theologian, astrophysicist respond

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