What If We Built A Ringworld In Space?
By What IfFrom YoutubeMarch 11, 2026
The Earth may not be our home forever. Eventually, we may have to leave.
#Spacetime
#Nebula
#Explore
#Orbit
#Galaxy
#Universe
#Exoplanet
#Cosmology
#Supernova
#Education
#Learn
#Black Hole
#Astronautics