Multiple choice

True or false? There are more stars in the universe than grains of sand on earth.

  1. True

  2. False

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Astronomers estimate that there are about 10^22 to 10^24 stars in the observable universe, while the total number of sand grains on Earth is estimated to be around 7.5 x 10^18. Therefore, stars in the universe vastly outnumber the grains of sand on our planet.