mercoledì 3 settembre 2014

NYT Science: Echoes of Light

Echoes of Light
By Dennis Overbye, Jason Drakeford and Jonathan Corum

Light from exploding stars can live on in the form of echoes, rippling across space and illuminating clouds of dust and gas that might otherwise be invisible.

Published: September 3, 2014 at 4:00AM

via NYT Science http://ift.tt/1r1dNke