[mmercier]

The only thing that interests me is how the intricate carvings within Egyptian tombs were accomplished with no traces of carbon within pitch black tunnels.

I seriously doubt any aliens have visited Earth.

We are probably the aliens to them that have always been here.

[Flag_This]

"The only thing that interests me is how the intricate carvings within Egyptian tombs were accomplished with no traces of carbon within pitch black tunnels."

They did it with mirrors. That's the theory anyway.