In a Hardtalk Extra interview broadcast on Friday 22 April, Gavin Esler spoke to theoretical physicist Michio Kaku about the fate of planet earth.
Could mankind escape to a parallel universe?
We know how difficult it is for the US government and its allies to organise an exit strategy from Iraq.
So imagine how difficult it would be to organise an exit strategy from planet earth?
It sounds like science fiction, but it isn't.
The universe which scientists tell us began with a 'Big Bang' looks likely to end with a 'Big Freeze'.
This is bad news for intelligent life forms.
Gavin Esler talks to one of the world's leading experts in theoretical physics. He hears about some possible means of escape from our doomed planet earth.
HARDtalk Extra can be seen on Fridays on BBC World at 03:30 GMT, 08:30 GMT, 15:30 GMT, 18:30 GMT and 23:30 GMT.
It can also be seen on BBC News 24 at 04:30 and 23:30