There are more stars in the observable universe than grains of sand on all of Earth's beaches
Some trivia is so bizarre it forces you to rethink your entire understanding of the world. Check out the fact below, see how others reacted, and scroll down to dive into the verified science and history behind it.
Astronomers estimate there are approximately 2 trillion galaxies in the observable universe, each containing on average 100 billion stars — giving a total of roughly 2×10²³ (200 sextillion) stars. Geologists estimate there are about 7.5×10¹⁸ (7.5 quintillion) grains of sand on all of Earth's beaches and deserts combined. The number of stars exceeds the number of sand grains by a factor of about 10,000.
Every grain of sand on every beach on Earth represents 10,000 stars in the observable universe — and the observable universe is only the part we can see.
The Science Behind It
Astronomers estimate there are approximately 2 trillion galaxies in the observable universe, each containing on average 100 billion stars — giving a total of roughly 2×10²³ (200 sextillion) stars. Geologists estimate there are about 7.5×10¹⁸ (7.5 quintillion) grains of sand on all of Earth's beaches and deserts combined. The number of stars exceeds the number of sand grains by a factor of about 10,000.
Why Your Brain Finds This Hard to Believe
OddlyHuman Editorial
VerifiedWritten and fact-checked by the OddlyHuman Behavioral Science Team. We verify all psychological, sociological, and historical claims against peer-reviewed journals, primary sources, and established encyclopedias to bring you accurate insights.
Read our Editorial Guidelines →“There are 10,000 stars for every grain of sand on Earth. And we've only ever visited one star.”