What is an orbitectomy?

What Is a disadvantage of solar collectors? Why do some rockets burn up in the atmosphere? What is the reason why clouds rarely form in the stratosphere? What is the height of cumulus clouds? When rockets leave the space shuttle how do they not catch the shuttle on fire? Where might water be found on the moon? Is Apollo 11 famous? What is the terrain on planet Mercury like? What was the first rocket to land on the moon? Which indicate the direction of the movement of the moon? Apollo 8 astronauts were the first to do what? What is the line called that separates the dark half from the light half of the earth? Speed of Apollo rockets? Why are rainbows colorful? Why do houses in the desert have light colored roofs? Why does looking at an eclipse damage your eyes? What is an antonym for cosmos? Are spaceships real? What are the percentage of gasses that make up air space? How long is a year on Phobos?