We Are Running Out of Sand

Yes. SAND.

One of my favorite TV series of all time is the original Cosmos, hosted by Carl Sagan. In it, Sagan says, ā€œThe total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.ā€ In fact, there are probably ten times as many stars as grains of sand on Earth. And that’s a low estimate. It really drives home how vast our universe is because there are…

--

--

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store