Sunspot
A dark area of gas on the sun's surface that is cooler than the surrounding gases.
Retrograde Rotation
The backwards spin of a planet
Eclipse
The partial or total blocking of light of one celestial object by another
Astronomical Unit
The average distance between the earth and the sun
Gas Giants
Jupiter,Saturn,Uranus, Neptune
Comet
A ball of frozen dust and rock that orbits the sun and has a tail that glows
Terrestrial Planet
The name often given to the four inner planets Mercury, Venus, Earth, and Mars
Satellite
Any object that orbits around another object in space
Black Hole
An object in space whose gravity is so strong not even light can escape
Prograde Rotation
The counterclockwise spin of a planet or moon as seen from above the planets north pole
Phases of the moon
One of the different apparent shapes of the as see from earth
Solar Flair
A sudden eruption of high intense energy