The visual appearance of Neptune is much bluer than Uranus.
Indicate whether the statement is true or false
Question 2
If the density of the universe is greater than critical, then:
A) there is more matter than energy.
B) the universe is closed, gravity wins, and will shrink to the Big Crunch.
C) the universe is flat, and Euclid is right.
D) the Universe will continue expanding forever.
E) the universe will end up as nothing but black holes.