Mark presents his show from the BBC Stargazing Live event at The Forum in Norwich.
He’ll be getting involved in amazing science demos and will see stunning images from the world's best telescopes.
Mark will also be linking up with the main Stargazing Live television show at Jodrell Bank – and hearing from Star Parties all across the UK.
You can contact the programme by texting 81333, start your message with the work MARK. Call 0345 3001858.