Due to the coronavirus pandemic, the Science Weekly podcast will now explore some of the crucial scientific questions about Covid-19. Led by its usual hosts Ian Sample, Hannah Devlin and Nicola Davis, as well as the Guardian’s health editor Sarah Boseley, we’ll be taking questions – some sent by you – to experts on the frontline of the global outbreak. Send us your questions here: theguardian.com/covid19questions

About Time: A History of Civilization in Twelve Clocks
A captivating, surprising history of timekeeping and how it has shaped our world.
For thousands of years, people of all cultures have made and used clocks, from the city sundials of ancient Rome to the medieval water clocks of imperial China, hourglasses fomenting revolution in the Middle Ages, the Stock Exchange clock of Amsterdam in 1611, Enlightenment observatories in India, and the high-precision clocks circling the Earth on a fleet of GPS satellites that have been launched since 1978. Clocks have helped us navigate the world and build empires, and have even taken us to the brink of destruction. […Learn More]