It’s been 25 years since a crew of astronauts first stepped foot on the International Space Station – and it’s been occupied ever since.  

The station itself will be “de-orbited” in 2030, but naturally humankind’s ambition to explore the universe remains as limitless as ever.  

What will the new space race between the US and China look like? Or could the ambitions of Elon Musk and Jeff Bezos take us into another dimension? 

Niall is joined by Sky’s science correspondent Thomas Moore. 

Producer: Tom Gillespie 

Editor: Mike Bovill