What is a seopena?

Where should the center of gravity be in a rocket? How could Jupiter support life? Would limestone float in water? Where did Apollo 13 blow up? Why are stars sometimes referred to as atomic furnace? What does it mean when your crush stares at you? What is a term used to describe aiming to high for a particular goal? What would happen if there were no satellites? What is the name of all the clouds? Rhyming word pair for distant sun? Does the sun cause gravity on earth? When were heaven and earth created? Why is the moon small sometimes? How did cattle travel from west to east? What is the height of vinson massif? How does the helmet in a space suit work? Which planets atmosphere has very strong winds? Why do billions of stars appear as big patches of the night sky? What did jesus alvero contribute in the field of Science? How do cyclic events help us predict the future?