Our universe is expanding. What is the cause of its expansion?
Gravity
Matter
Dark energy
In the Big Rip scenario at what speed would space expand?
3 000 000 000 m/s
300 000 000 m/s
30 000 000 m/s
In the Big Rip scenario galaxies, black holes, stars, and planets are ripped apart and die.
Which is the most promising end of the universe?
Big Crunch / Big Bounce
Big Rip
Heat Death / Big Freeze
What is the role of black holes during the Big Crunch?
To maintain a stable universe
Join together to form a massive black hole
To eliminate the whole universe