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Gaia: A Galactic Revolution
For past three and a half years, ESA's Gaia Space telescope has been mapping the heavens in unprecedented detail. At the end of April 2018 it released precise data on over 1.3 billion stars in the Milky Way showing how they move over time and their distance from Earth. Maggie and Chris reveal some of the most surprising initial findings, from the discovery of wandering black holes, hyper velocity stars and 'transient phenomena' to a brand new age map of the Milky Way and concrete evidence of how our galaxy formed.
Source: BBC 4
Most recent episodes of The Sky at Night
The Sky At Night
Ancestral Skies
This month, The Sky at Night teams up with BBC Ideas to discover the secrets of archaeology and astronomy and to reflect on our ancestral skies. \n\nThroughout history and acros ...
14-11-2024
BBC 4
The Sky At Night
Question Time Special
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
2075: Our Place In Space
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 ...
11-09-2024
BBC 4
The Sky At Night
Nicky, Nasa And The Next Frontier
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 ...
15-08-2024
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 ...
11-07-2024
BBC 4
The Sky At Night
Cosmic Ghosts
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 ...
16-11-2023
BBC 4
Most popular episodes of The Sky at Night
The Sky At Night
Guides: 3. Stars
For as long as humans have walked the Earth, the stars have fascinated us. But we have come a long way since the earliest days of astronomy when we had nothing but our eyes to o ...
09-01-2022
BBC 4
The Sky At Night
How Gravity Shapes The Universe
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
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
Juno And Jupiter
August 2021 marks ten years since Nasa’s mission to Jupiter, Juno, was launched. The mission – to uncover the mysteries surrounding Jupiter’s formation – ...
11-08-2021
BBC 4
The Sky At Night
Beyond Pluto
On 1 January 2019, Nasa's New Horizons probe notched up another historic first: the first ever Kuiper belt fly-by. Its target was 2014 MU69, a chunk of ice and rock about four b ...
17-01-2019
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
The Sky At Night
Question Time Special
A special Question Time edition of the programme, recorded at the University of Exeter as part of the British Science Association’s Science Festival.\n\nThe panel is chair ...
12-10-2023
BBC 4
The Sky At Night
Impacts
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.
15-06-2014
BBC 4
The Sky At Night
Will An Asteroid Destroy Earth?
The Sky at Night team explores the threat of an asteroid impact on earth. Around 2,300 asteroids have been identified as ‘potentially hazardous’, and it’s tho ...
18-05-2023
BBC 4