1. This theory by Albert Einstein explains why all "observers" have their own seperate measure of time because of the finite speed of light. Theory of Relativity Theory of Universal Evolution Theory of Expansion Planck's Theory

2. The corona, the uppermost part of our sun, is what color to the naked eye? Yellow Gray Orange It is invisible to the naked eye

3. What happens to all objects that orbit the sun, the closer they get to the sun? They rise higher than normally They slow down They speed up They move lower than normally

4. If not for the gravitational effect of this planet, the Earth would most likely be frequently bombarded with cosmic debris. Venus Mercury Mars Jupiter

5. When a neutron star and a black hole orbit each other, the gases sucked off of the neutron star cause what kind of disk around the black hole before disappearing into it? Chandrasekhar Disk Double Disk Funnel Disk Accretion Disk

6. Why is it impossible for our sun to turn into a black hole eventually? It is not impossible It is too close to the edge of the universe It has planets It is not large enough

7. The ability of these celestial bodies to spin rapidly, yet at a very precise rate, once caused scientists to suggest that they were actually messages sent by distant aliens. Neutron Stars Quasars Pulsars Black Holes

8. These huge clouds of helium and hydrogen serve as the birth place of stars. Novas Nebulae Constellations Auroras

9. Which of these forces of our universe is the strongest? Weak Force Strong Force Gravity Hammons' Force

10. While being sucked into a black hole, objects are stretched out by what force of gravity? Expansion Force Tidal Force Miller - Urey Force Relative Force