In this episode of BBC Radio 4's In Our Time: Science podcast, host Melvyn Bragg meets with experts Frank Close, Carolyn Crawford, and Lucie Green to discuss eclipses.

Eclipses have long captivated humans and contributed to scientific discovery.

A solar eclipse involves the covering of the sun, either partially or fully, while a lunar eclipse occurs when the moon is hidden by the Earth's shadow.

Eclipses have helped us discover the speed of light and the roundness of the Earth, and proved Albert Einstein's theory of relativity.

In Our Time is a BBC Radio 4 program that covers a broad range of topics, from philosophy, history, and culture to science and religion, hosted by Melvyn Bragg since 1998.

In this science-based episode, Bragg discusses the phenomenon of the eclipse with experts Frank Close, Carolyn Crawford, and Lucie Green.

Close is the emeritus professor of Physics at the University of Oxford, Crawford holds the office of public astronomer at the University of Cambridge, and Green is professor of Physics at University College London.