International Dark Sky Week: See how humanity's connection with the night sky has evolved

When you step outside at night and look to the sky, what do you see: black velvet accented by hu

from Space.com https://ift.tt/2z86yb2

Comments

Popular posts from this blog

Seismic study reveals key reason why Patagonia is rising as glaciers melt

New method to detect and visualize sperm cells recovered from forensic evidence