What is a moon like a dollar?

Is there such a diamond called a blue diamond? What materials are use for periscopes? What is a solar ejection? How does the current space station differ from previous space stations? Is moon blindness contagious? Did scientist theorize that the moon was originally a comet? What is a launch of a spacecraft? When the sky is free of clouds? How does science say we are connected with the universe? What fuses during the red giant phase? Why won't the sun become a black hole? Does the moon appear at the same place every day? In Pokemon explorers of time does Grovyle ever return after he goes through the dimentional hole with Dusknoir at Temporal Tower? What colour would a cyan object be when light is shined on it? Which layer of the sun has the highest density? What is a wide range of energy waves that radiate from the sun called? How do you combine Jupiter is the largest planet in the solar system It is named for the ruler of the gods in roman mythology with an appositive phrase? What is the name of the most abundant gas in the atmosphere? How many astronaut went to the moon? What is the Earths size?