7:12 The Largest Known Prime Number

Dillon Mayhew is back with us and he's talking about the recent discovery of the largest known prime number - among other things.

7:30 Song Crush

A come-back dance-floor banger from The Chemical Brothers, some gender-bending Ocker punk, a power ballad, and a heart-breaking falsetto are some of the sounds you'll hear in Song Crush this week. 

Selectors: Tony Stamp, Yadana Saw, Brad 'Sticky' Warrington, and host Kirsten Johnstone. 

8:10 Night Mail

To get in touch, email nights@radionz.co.nz , you can text us from your mobile on 2101 or you can find us on Facebook.

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Photo: Creative commons

8:15 Dateline Pacific

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Photo: RNZ

RNZ Pacific's daily current affairs programme covering the major Pacific stories of the week, with background and reaction from the people making the news.

8:30 Window on the World

Carly Sygrove is a British teacher living in Madrid. She was sitting in her school's auditorium when suddenly her head was filled with a loud screeching sound. Diagnosed as sudden sensorineural hearing loss, Carly no longer has any functional hearing in her left ear, and battles with the whoops, squeals and ringing that comes from having tinnitus. Carly shares her personal story and speaks honestly about how life with hearing in only one ear is far from quiet.

9:07 BANG!

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Photo: RNZ / Pinky Fang

Didn't you know? It's 20-bi-teen! What better time to get schooled on the ins and outs of bisexuality. In this episode, a couple from season 2 return to talk about the difference between being bi and pansexual, and what it's like when everyone around them assumes they're straight. Plus queer author and columnist Emily Writes comes out in her 30s, Dr Nikki Hayfield explains  terms like "biphobia" and "bisexual invisibility", and some bi+ teens share what it's like to be young and  "super gay" today.

10:17 Lately

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Photo: RNZ

Lately with Karyn Hay is a late night radio show on RNZ National, with an eye on live events, an ear for music, a great sense of humour and a genuine interest in people and their stories.

11:07 Worlds of Music

Trevor Reekie hosts a weekly music programme celebrating an eclectic mix of 'world' music, fusion and folk roots. Tonight,  an interview with American Grammy Award winning audio engineer and producer Ian Brennan talking about an exciting and unique project recorded with Pakistani micro-tonal vocalist Ustaad Saami.

Ian Brennan on location

Ian Brennan on location Photo: Supplied

Brennan has worked with a plethora of musicians across the globe; from Romania, Italy, Cambodia, Rwanda and Mali and now this remarkable album called God is not a Terrorist by Ustad Saami recorded in Pakistan

As Brennan says: "Saami is in a class by himself - I'm hopeful for the day that he will be recognised worldwide - and take his rightful place as one of the greats in modern Pakistani musical history."