What is a ptotstar?

What happens in an aphotic zone of body and water? What is the letter for betelgeuse? Is 1AU equal to 93000000mi? What planet has a poisonous atmosphere? Where is Orion's Belt? Why is the atmosphere NOT important to living things? How do planetary orbits contribute to the stability of our solar system? Do aliens exist on mars? Can you get the behemoth blade of light and shadow even though your not a member? What is the warmest light bulb? Who are the brothers and sister of Zeus? Why does the moon revolve around the earth instead of falling like an apple? Why no fission on sun? Could gamma rays be blocked by the Earth's atmosphere? Who invented the light filament? How did those involved work to solve the problem in Apollo 13? Why are stars brighter and others dim? What is considered the world's highest peak? How did the element of gold form in the universe? How many earth days is on milky way?