BBC Two England

BBC Two is a TV channel that started broadcasting on the 20th April 1964.

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Factual: Science & Nature

Factual: Science & Nature: Science & Technology

Horizon tells amazing science stories and reveals worlds you've never seen before.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

BBC One

BBC One is a TV channel that started broadcasting on the 20th April 1964. It replaced BBC Television.

The BBC West region started on 1st September 1957 as part of the BBC Television Service, before becoming BBC One West.

BBC One West

The BBC South West region started on 20th April 1961 as part of the BBC Television Service, before becoming BBC One South West.

BBC One South West

The BBC South region started on 5th January 1961 as part of the BBC Television Service, before becoming BBC One South.

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BBC One London

London

BBC One West Midlands

BBC One region covering Derbyshire, Leicestershire and Nottinghamshire.

BBC One East Midlands

The BBC East region started on 1st May 1959 as part of the BBC Television Service, before becoming BBC One East.

BBC One East

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The BBC North East & Cumbria region started in 1959 (tbc) as part of the BBC Television Service, before becoming BBC One North East & Cumbria.

BBC One North East & Cumbria

BBC One Yorkshire

BBC One Oxfordshire

Formerly part of a wider BBC One South East region that included London and part of the South region. Separated from BBC One London 2001-09-03 following reorganisation of the South East region.

BBC One South East

BBC One Cambridgeshire

BBC One Channel Islands

BBC One Yorks & Lincs

BBC One Scotland

Scotland

BBC Northern Ireland region started on 19th April 1955 as part of the BBC Television Service, before becoming BBC One Northern Ireland.

BBC One Northern Ireland

BBC One Wales

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Horizon: 2009-2010

Rob Liddell

Andrew Cohen

Horizon: 2009-2010: Episode 15: Is Everything We Know About The Universe Wrong?

Is Everything We Know About The Universe Wrong?

Episode 15

Episode 15: Is Everything We Know About The Universe Wrong?

2009-2010

BBC Two - Horizon, 2009-2010, Is Everything We Know About The Universe Wrong?

Investigating the discovery of what is ominously being called 'dark flow'.

Investigating the discovery of what is ominously being called 'dark flow', a phenomenon which could mean scientists might have to find a new way of understanding the universe.

There's something very odd going on in space - something that shouldn't be possible. It is as though vast swathes of the universe are being hoovered up by a vast and unseen celestial vacuum cleaner. 

Sasha Kaslinsky, the scientist who discovered the phenomenon, is understandably nervous: 'It left us quite unsettled and jittery' he says, 'because this is not something we planned to find'. The accidental discovery of what is ominously being called 'dark flow' not only has implications for the destinies of large numbers of galaxies - it also means that large numbers of scientists might have to find a new way of understanding the universe. 

Dark flow is the latest in a long line of phenomena that have threatened to rewrite the textbooks. Does it herald a new era of understanding, or does it simply mean that everything we know about the universe is wrong?

BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.

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Until 03/01/2009 BBC Two Wales (analogue) was known simply as BBC Two Wales. BBC Two Wales (digital) was BBC 2W. From 03/01/2009 BBC Two Wales schedules on both analogue and digital became identical

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Episode 15: Is Everything We Know About The Universe Wrong?

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