Space-y matters

And my fascination with matters astronomical continues. If you share my interest, you will want to read on.

Whistling in the dark (matter)?To date, not a single experiment has shed any light (bon mot intended) on the nature of dark matter or dark energy. The former is invoked to explain certain otherwise inexplicable, and presumably gravitationally caused, behaviors (e.g., the orbital periods of stars in galaxies, and galaxies within clusters). The latter is invoked to explain the otherwise in...