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The Invisible Universe
The Sky at Night reports on one of the most unnerving discoveries in space science - that most of the universe is missing.\n\nWe 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.\n\nAnd 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.\n\nThe 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.
Source: BBC 4
Most recent episodes of The Sky at Night
The Sky At Night
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The Sky At Night
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In this Sky at Night special, the team talk to Dr Nicola Fox, NASA’s head of science, whose life began in the UK.\n\nPresenter Chris Lintott chats to Nicky about her early ...
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The Sky At Night
Webb Telescope: The Story So Far
In July 2022, the James Webb Space Telescope released its first images. They were visually stunning, and it was clear they provided more detail of stars, galaxies and planets th ...
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The Sky At Night
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BBC 4
The Sky At Night
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Total solar eclipses, like the one seen last month in North America, allow us to see details of the Sun that can’t be seen at any other time. So, this month, The Sky at Ni ...
16-05-2024
BBC 4
The Sky At Night
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The Sky at Night is back for a brand new series, and this month it is delving into Nasa’s OSIRIS-REx mission, which last year brought back a sample from the near-Earth ast ...
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BBC 4
The Sky At Night
The Sky At Night Meets The Infinite Monkey Cage
In this special episode to mark the end of another season of The Sky at Night, we team up with Radio 4’s The Infinite Monkey Cage to talk all things amateur astronomy. Joi ...
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BBC 4
Most popular episodes of The Sky at Night
The Sky At Night
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The team travels to the Brecon Beacons AstroCamp to see how gravity shapes the universe. Chris finds out about the newest moon in the solar system.
18-05-2014
BBC 4
The Sky At Night
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The Sky at Night team explore the history of the telescope – from Harriot and Galileo's lunar observations to the Hubble and James Webb space telescopes – revealing ...
18-11-2021
BBC 4
The Sky At Night
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Chris and Maggie report on the reaction to the dramatic announcement of the discovery of phosphine gas in the clouds of Venus, a gas that could be a sign of life. Venus remains ...
11-11-2020
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The Sky At Night
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In July 2022, the James Webb Space Telescope released its first images. They were visually stunning, and it was clear they provided more detail of stars, galaxies and planets th ...
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Hiding In Starlight
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The Sky At Night
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The team looks at the cosmic impacts which have shaped the universe around us, from asteroids crashing into the surface of the moon to galaxies colliding with each other.
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BBC 4
The Sky At Night
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15-06-2023
BBC 4