Elemental extinction, Needle point and Moons

It's bad enough that we force critters into extinction but Elements from the periodic table?! Apparently Gallium, Indium and Hafnium will be unavailable within 20 years and Copper only 80 years after that. via Reddit.

Guradina has a big article explaining the "science" behind Acupuncture. The needles stimulate the release of an anti-inflammatory compound which might account for some of reported benefits. Bit skeptical me - I'm sure Goldacre will be all over it soon enough - meanwhile he's got a nice bit about the passing of an illustrious debunker.

Stonishing photo of two of Saturns moons with the Rings in the background.

On the subject of moons here's an interesting post about the strange hollowness of Mars' moon Phobos just confirmed by an ESA flypast.