The Mystery of Dark Energy

BBC FOUR

Wednesday 24 July 2019  00:00 - 01:00 (60 mins)
3/17. Horizon looks at dark energy - the mysterious force that is unexpectedly causing the universe's expansion to speed up.

The Mystery of Dark Energy may be available on playback
The Mystery of Dark Energy (BBC FOUR) Wednesday 24 July 2019 00:00 - 01:00