Dark energy and Dark matter Flashcards
1
Q
What percent of the universe is visible matter
A
5%
2
Q
What percent of the universe is dark matter
A
25%
3
Q
What percent of the universe is dark energy
A
70%
4
Q
What does dark energy and matter allow us to explain
A
Potentially why universe is expanding at a greater rate than expected
5
Q
What is dark matter
A
matter that has mass we can’t detect yet we know it’s there due to how galaxies move
6
Q
What are the theories for dark matter
A
undiscovered subatomic particles
constantly colliding and collapsing particles which creates energy
