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)  ☿, ♀, ⛢, ♇,☉, ☽, ⚳, ⊕, ♆, ♂, ♃, ♄

The Great Red Spot on Jupiter is

There is star formation in Elliptical Galaxies.

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?

Why is Venus hotter than Mercury, even though Mercury is closer to the sun?

What is the likely final fate of a star whose mass is 25 solar masses after it has finished its nuclear burning phases?