How large is the universe? Does it have an end point?I was thinking about how the universe might have an end point and nothing is left - nothing. No life. No planets....
How long would it take to send a message to the Galactic Capitol located at the center of the galaxy, then to receive the reply?To give a sense of the difficulty of managing an intergalactic civilization, calculate the time (IN YEARS) it...
Did prehistoric mars harbour life?What about prehistoric Venus?Are you excited about learning about prehistory?What prehistoric planets and planets in general you want to visit?...
What stars would you see on the daytime if suddenly sun goes out?Every night you see the same star patterns in the sky, but on a daytime would you see the same stars if suddenly sun goes out? if you got to see the same stars at this time the...
