More Stars Than Grains of Sand on our Beaches?

Universe Today publisher Fraser Cain previously shared with us the estimated number of stars in the universe: 1 x 10^24 stars (that’s 1 septillion stars). Now he looks at the claim that “the total number of stars in the universe is greater than all the grain of sand on all the beaches on the planet earth”, an often repeated concept from Carl Sagan’s Cosmos. We won’t spoil Fraser’s answer, but it’s a fascinating thing to consider.