September 5, 2015

nh_01_stern_05_pluto_hazenew

In Pluto, remember, it’s snowing methane. It has an atmosphere about 150 kilometers high and it’s so cold that the atmosphere is frozen, so that all the methane day flashes. […]

airglow_lco_beletsky

I usually say something about “the sky”. But today, image will speak for himself.