Professor Stephen Hawking shows how we discovered that most of the matter in the Universe is missing and looks at the possible existence of dark matter.

Leading fertility expert Professor Robert Winston examines how the body has evolved. In this programme he looks at the teenage years.

The secrets of a ship sent by Oliver Cromwell to attack a Royalist stronghold. Also at 12.40pm. 3.40pm, 1am.

How the clans were brought together by English aggression. Also at 1.30pm, 4.30pm.

Professor Stephen Hawking shows how we discovered that most of the matter in the Universe is missing and looks at the possible existence of dark matter.

Leading fertility expert Professor Robert Winston examines how the body has evolved. In this programme he looks at the teenage years.

Professor Stephen Hawking shows how we discovered that most of the matter in the Universe is missing and looks at the possible existence of dark matter.

Leading fertility expert Professor Robert Winston examines how the body has evolved. In this programme he looks at the teenage years.

The dramatisation of Mrs Gaskell's novel continues.

Photographer Yevgeny Khaldei.

After hunting for fossils at Lyme Regis, Adam Hart-Davis recreates a seance.

Professor Stephen Hawking shows how we discovered that most of the matter in the Universe is missing and looks at the possible existence of dark matter.

Presented by Barbara Bonney.

German composer Hans Werner Henze talks about his life and work.

A critical guide to tonight's film.

Drama depicting a day in the lives of a disparate group of people in an Italian city. In Italian with English subtitles.

South African satirist Pieter-Dirk Uys's show in which he fights Aids by educating through entertainment.