There are more stars in the Universe than grains of sand on Earth

Scientists reckon there are a septilion stars in the Universe (which is way way more than just our Galaxy, the Milky Way). And this is really a guess because we will probably never know. So we're clear, a septillion is 1,000,000,000,000,000,000,000,000 stars. That's way more than the measly 7 quintillion grains of sand on Earth!