Big Bang Quiz: questions and answers
Right answers
Found error? Select and press Ctrl+Enter
1. According to the Big Bang theory, the universe has expanded from ______
a very high-density and high-temperature state
2. How long ago has the Big Bang happen?
13.799 ± 0.021 billion years
3. Who was the first to note that an expanding universe could be traced back in time to an originating single point?
Georges Lemaître
4. What were the majority of atoms produced by the Big Bang?
Hydrogen, along with helium and traces of lithium
5. Who formulated the governing equations of the Big Bang theory?
Alexander Friedmann
6. What is a gravitational singularity?
A location in spacetime where the gravitational field of a celestial body becomes infinite in a way that does not depend on the coordinate system
7. How many types of quarks are there?
6
8. What percentage of the total energy density is present in the form of dark energy?
73%
9. What does WMAP stand for?
Wilkinson Microwave Anisotropy Probe
10. When did Arno Penzias and Robert Wilson discover the cosmic background radiation?
1964