The Earth has TWO Moons ???

[Allan_L]

According to the BBC show QI (just aired tonight 9/10/2012 ABC1 9:30pm)...
the Earth has two moons.
The second one only discovered in 1986
called Cruithne.

I must have been under a rock for the last 26 years because this is the first i have heard of it.

Doing a google, Wiki confirms most of the story, but says it is now regarded as a planetoid, orbiting the sun (not the Earth) in about 1 year.
But it was originally thought it had a 770 year orbit of the Earth.

[goober]

It's a running gag in Qi. They keep correcting themselves each season. That sounds like an early episode.

[Poita]

That's right, it was originally thought to be orbiting the Earth, but in fact orbits the Sun.
I remember that episode of QI from ages ago, had that American comedian that looks like he was the basis for the character design of 'Mo' from the Simpsons.