The letters G U T  from the GUT Era stand for Grand Unified Theory. This theory explains how 3 of the fundamental forces are indistinguishable. Which three forces does it describe?

Which of the following lists contain all terrestrial planets?

Which of the following is evidence that the Earth orbits around the Sun?

What was the age of the universe when it became transparent and photons could travel without running into anything?

Which is the classification given to a galaxy with a small nuclear bulge, and loosely wound arms with no bar through the nuclear bulge?  

The composition of Saturn’s rings are

What percentage of visible matter is made of Hydrogen?

Which of the following is true for a main sequence star that has half the mass of the Sun?

Match the moons to the dwarf planet that it orbits. some may be used more than once or not at all

Extra Credit: Match as many symbols to planets as you are able. ( have put the symbols here as a larger version so you can hopefully see them more clearly)  ☿, ♀, ⛢, ♇,☉, ☽, ⚳, ⊕, ♆, ♂, ♃, ♄