So, how many galaxies are there?
You guessed it: There are a whole helluva lot of ‘em. But, can we count them? Is that even possible?
Via It’s Okay To Be Smart / Ethan Siegel
You guessed it: There are a whole helluva lot of ‘em. But, can we count them? Is that even possible?
Via It’s Okay To Be Smart / Ethan Siegel