Monday

Building the Ultimate (Five, 19.30-20.00) How space craft are put together.

Costing the Earth (Radio 4, 21.00-21.30) The prospects for nuclear fusion are reheated for another outing.

Tuesday

Horizon (BBC2, 21.00-22.00) So you’ve kind of got dark energy and dark matter sorted in your head, and then something called ‘dark flow’ comes along. Horizon finds out more.

Wednesday

Natural World (BBC2, 20.00-21.00)

Growing Babies: Battle in the Womb (BBC4, 20.00-21.00) Insights into the psychology and science of pregnancy.

Geoengineering the Climate (Radio 4, 21.00-21.30)

Thursday

Material World (Radio 4, 16.30-17.00) Quentin Cooper hears about remarkable chemicals that can ‘navigate’ a maze.

Sunday

Richard Hammond’s Engineering Connections (BBC2, 18.10-19.00) The Hamster looks at the engineering behind the Keck Observatory.

Wonders of the Solar System (BBC2, 21.00-22.00) Brian ‘wax cheeks’ Cox continues his cosmological tour with a look at how order comes out of chaos.