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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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BBC 4
The Sky At Night
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Get ready for The Sky at Night’s annual Question Time Special, where viewers get the opportunity to ask the questions they have always wanted answered about our universe.\ ...
08-10-2024
BBC 4
The Sky At Night
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The Sky at Night is embarking on a journey into the future as we explore how space will revolutionise life on Earth over the next 50 years. As humanity's reach extends into the ...
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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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BBC 4
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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This month, The Sky at Night has a spooky twist. Across the universe, there are hidden objects that we can’t see, but astronomers and scientists still believe they’r ...
13-06-2024
BBC 4
The Sky At Night
Hiding In Starlight
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
Space Rock Return
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 ...
11-04-2024
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
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 ...
11-07-2024
BBC 4
The Sky At Night
The Uk Space Race
The Sky at Night team investigates the incredible science and engineering helping the UK to blast into space. We are now one of the biggest satellite building nations in the wor ...
15-06-2023
BBC 4
The Sky At Night
Space Rock Return
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 ...
11-04-2024
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
The Sky At Night
Is Cosmology In Crisis?
Ever since we discovered that distant galaxies are racing away from us, there has been a heated debate over just how fast the Universe is expanding.\n\nAt the beginning of the 2 ...
14-02-2019
BBC 4
The Sky At Night
Ice Giants
The team explores the vast frozen worlds of Uranus and Neptune, while astro-photographer Damian Peach shares his tips for capturing these jewels of the night sky.
12-10-2014
BBC 4
The Sky At Night
The Astronomer Royal At 80
Martin Rees is perhaps Britain’s most renowned cosmologist. He was master of Trinity College, Cambridge, president of both the Royal Astronomical Society and the Institute ...
16-06-2022
BBC 4
