How did john glenn make this world a better place?

Does Nikita mean moon? Are the stars in the little dipper look equally bright? What is prefix meaning broken pieces of clouds called? Why are rip tides associated with gravitational waves? Is cloud seeding illegal in montana? What storm moves quickly in a narrow path and has rotation winds up to 300 miles per hour that kick up a cloud of dirt and debris? Who is the goddess of hearth and home sister of Zeus? The atmosphere of the planet Mars is primarily composed of which greenhouse gas? How often does the earth set from the moon? Will the sky ever disappear? Who is the sun married to? Which is better checking your appearance in a regular mirror or checking it in a sheet of crumbled aluminum foil? Are low shapeless rain clouds they are dark gray in color? What will the world be like 50 years from now? Why was the tower of babel built in 40 days? Who invent the teloscope? What trade winds are caused by a rotation of wind known as? How long long did Yuri a. gagarin stay in space? What word or words is tension like? What did niel Armstrong do to make a difference in the world?

How did john glenn make this world a better place?