Computer sim reveals Earth's many moons
We're used to the idea of one moon orbiting Earth, because that's generally what we see in the night sky every evening.
But scientists using a new computer simulation program have discovered thousands of moons swirling around our blue planet, it's just that most of them are too small to see.
Andrew Fazekas is a science writer and the writer behind the website www.thenightskyguy.com
Click on the link below to hear him speak with Dave.