May 13, 2019
“The Cosmic Perspective” --Neil Degrasse Tyson’s Astrophysics for People in a Hurry.
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“The Cosmic Perspective” --Neil Degrasse Tyson’s Astrophysics for People in a Hurry.
Billigere Orion-raumschiffe?
Die #Orion-Raumschiffe sollen um die Hälfte billiger werden. Warum kommt diese Ankündigung erst 12 Jahren nach Baubeginn? Hört sich großartig an, ist aber kaum zu glauben. Bis 2017 sind fast 15 Mrd. $ verbaut worden. https://goo.gl/TEfpn3