Who is astristole?

Why we cannot speak in space and cannot hear? Where is water vapor located in the atmosphere? What is an arched eruption of gas from the sun's surface? Is NASA faking going to the moon? What is a sentence with the word vast? What does AGB stand for? Did Aristotle and Ptolemy both reason that the celestial bodies must be provided with a source of motion? What are the dark spots in stars? Who were the first sailors to travel around the earth? How long does it take the human eye to see an object a trillion miles away? Can a solar flare harm you physically? When did the Apollo 11 land? What is Zeus' the Greek god's symbol? Which weighs more the earth or the moon? Why can some people see the future when dreaming? When did NACA become NASA? Is it true that Kepler's laws holds only for the six planets known in his time? How do we study the effects of time? What organism does not dependent on the sun? What does it mean if a girl's eyes sparkle every time she looks at you?