Science Stories

Original version

BBC Radio 4 FM

BBC Radio 4 is a radio channel that started transmitting on the 30th September 1967. It replaced BBC Home Service.

BBC Radio 4

Radio 4

Radio 4 (FM)

Factual: Science & Nature

Surprising stories from the history of science told by Naomi Alderman and Philip Ball.

BBC Radio 4 LW

Science Stories: Seeing is Believing - The Leviathan of Parsonstown

Seeing Is Believing - The Leviathan of Parsonstown

Seeing is Believing - The Leviathan of Parsonstown

BBC Radio 4 - Science Stories, Seeing is Believing - The Leviathan of Parsonstown

Simon Schaffer tells of the astronomers who grappled with evolution long before Darwin.

Professor Simon Schaffer tells of the astronomers who grappled with evolution long before Darwin, and who tried to settle the argument using the biggest telescope in the world.

Today, astronomers believe the universe is a violent, constantly changing place. But it was not always the case.

At the beginning of the 19th century, many believed fervently that the celestial sky was a constant, divinely perfected, completed creation.

But as telescopes got larger, the mystery of the number, origin and role of the "nebulae" - those colourful, cloud-like smudges on the sky – grew and grew. Were they really vast clouds of gas and dust as they sometimes appeared? Or were they merely closely packed, very distant clusters of stars, as some of them allegedly appeared when magnified through the great reflecting telescopes?

When some astronomers and writers suggested they were in fact a vision of creation in action, matter condensing to form stars and planets like our own, some establishment religious figures cried foul, fearing the social implications.

Could bigger telescopes resolve the crisis?

For most of the 19th century, the biggest telescope in the world was in Birr, Ireland, then known as Parsonstown. It was built by an Anglo-Irish nobleman, Willam Parsons, Earl of Rosse, in the midst of the Irish famine. 50 feet long, 6 feet in diameter, the monster instrument was dubbed "The Leviathan".

But even thus equipped, in the days before photography and spectroscopy, observers could only describe and sketch what they saw, and it was hard to be objective.

As Simon Schaffer, James Bennet, and Chris Lintott narrate, the debate as to the truth of the "Nebular Hypothesis", and the concern as to whether the Irish astronomers really saw what they claimed to see, paved the way for the Darwinian debates in the coming decades.

Producer: Alex Mansfield

Intelligent speech, the most insightful journalism, the wittiest comedy, the most fascinating features and the most compelling drama and readings anywhere in UK radio.

Accessibility links

Programme Index

Science Stories

Seeing is Believing - The Leviathan of Parsonstown

Genres

Brand

BBC Radio 4 FM

About BBC Radio 4