Cosmic Wonders
100
One of the photos that came from the recent Artemis II mission is this "western-facing" image of Earth.
What is Earthset?
200
This rare astronomical event for Mercury 'pass by' only 13 times in a century and occur in either May or November.
What is a transit of Mercury?
300
Friday the 13th... April 13, 2029... will hopefully be just another Friday, but it will also be the close fly-by of this asteroid, named for an Egyptian serpent god.
What is Apophis?
400
How far can we go? This disc in the outer Solar System is known as the newest 'final frontier' due its large size and vast number of icy celestial bodies. 
What is the Kuiper Belt?
500
Far out... Pluto's next, and first observed, Aphelion, which is this event, is scheduled to happen in August of 2113, 87 years from now and 96 years since its discovery.
What is the farthest distance from the Sun?