Stig Östlund

onsdag, september 13, 2017

Sync your calendar with the solar system

https://www.nytimes.com/interactive/2017/science/astronomy-space-calendar.html?rref=collection%2Fsectioncollection%2Fscience&action=click&contentCollection=science&region=rank&module=package&version=highlights&contentPlacement=9&pgtype=sectionfront

Bloggarkiv