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BBC Four

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The Sky at Night

Documentaries

Factual: Science & Nature

Factual: Science & Nature: Science & Technology

Iconic series exploring space science and the incredible universe all around us.

Look up! Dr Maggie Aderin-Pocock and Professor Chris Lintott present the iconic, inspirational look at cutting-edge space science and the incredible universe all around us.

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Maggie Aderin-Pocock

Chris Lintott

Pete Lawrence

Jim Al-Khalili

Jonathan Renouf

Tim Usborne

The Sky at Night: The Invisible Universe

The Invisible Universe

14/01/2018

BBC Four - The Sky at Night, The Invisible Universe

Why 95 per cent of everything in the universe is actually, one way or another, invisible.

A report on the discovery that most of the universe is missing, as scientists currently estimate that 95 per cent of everything in the universe is invisible.

The Sky at Night reports on one of the most unnerving discoveries in space science - that most of the universe is missing.

We live in a material world, so instinctively we know what normal matter is - the world around us, the planets, stars and interstellar dust. But scientists currently estimate that 95 per cent of everything in the universe is actually - one way or another - invisible. Some of this is ordinary matter that we just can't easily see. But there's also stuff that's much more weird. For instance, there's a new kind of matter we think is out there, but whose very existence is still largely hypothetical - dark matter.

And most mysteriously of all, scientists think there is an unknown form of energy pervading the universe that we know so little about, all it has so far is a name - dark energy.

The Sky at Night takes you on a tour of this invisible universe, and shows how its existence - or lack of it - will define the fate of the entire universe.

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