We kind of plop tidbits of cool science stuff here and there in OT, but it kind of gets lost. So I thought, HEY TARDIS (that's what I call myself) why not give science it's own special place here in the mighty MF Off Topic forum?
So, what's the lightest man made substance on Earth that you can think of? I bet you were thinking of Aerographite, right? Wrong! Back of the line! No soup for you!
This new material is one-seventh the density of air.