Are there more stars than grains of beach sand?
Stars vs Sand. We work out who wins the ultimate cosmic battle.
More or Less · BBC Radio 4
July 6, 20188m 58s
Show Notes
The astronomer, Carl Sagan, famously said that there were more stars in our Universe than grains of sand on the Earth’s beaches. But was it actually true? More or Less tries to count the nearly uncountable. Content warning: This episode includes gigantically large numbers. (Photo: The barred spiral galaxy M83. Credit: Nasa).