factors like these just blow my mind. just attempting to fathom the distances, sizes, and possibility of life fascinate me:
Answer by campbelp2002
I can not choose just a single. That a single is quite good, but so are numerous other folks.
Answer by meanolmaw
the initial picture of the complete Earth from space……
for far space, something by Hubble of the Orion nebula….
Answer by Friday
The very first one particular.