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An asteroid is an object, too small to be considered a planet that orbits the Sun. Most asteroids can be considered as being little more than large chunks of rock. ---- Answer provided by ... /For%20Kids/KidstoSpace.html Click here Category:Kids To Space Category:Kids To Space - ASTEROIDS, COMETS, AND METEORS

An airlock is a device which allows movement from one kind of environment to another, while maintaining separation ...

There is potential energy and kinetic energy. Potential energy is associated with height and kinetic energy is associated with velocity. The other part of the calculation is range-to-touchdown. There is an equation that, when ...

An environment defines the area or space around you. For example, the air around you is part of your environment. The air must be breathable and not too hot or too cold for you to survive. The bedroom where you sleep is also an environment. ---- Answer provided by Robby Gaines Image:K2S logosmall.jpg Question and Answer extracted ...

... arm out and wave it around, you are feeling the atmosphere. The Earth's atmosphere is composed mostly of nitrogen and oxygen molecules with other minor gases. We breathe the oxygen ... upward we travel from the surface. Ten miles up the pressure is one-ninth of the surface; 15 miles up it is one-twenty-seventh of the surface. Commercial jets fly about five miles up and the air is very thin. The edge of space is roughly 60 miles up and the air is so thin that commercial planes cannot fly and ...

... particular country, nation or territory as well as to the ownership of new lands. Sovereignty is intricately linked with jurisdiction and control over a territory. Whoever had sovereignty could claim ownership ...

... Earth's protective atmosphere—begins at a height of 62 miles above Earth and is called the Karman Line, named for the Hungarian aeronautical pioneer Theodore Von Karman who helped ...

... force that causes objects with mass to be attracted to other objects of mass. Gravity is the downward force that keeps your feet on the ground and prevents you from floating ...

Think about our solar system—nine planets orbiting our Sun. A galaxy is like that, only much bigger. Billions of stars, like our Sun, orbit something very massive, ...

... minimum velocity required to depart the gravitational field of an astronomical body. Imagine a rocket is launched straight up from Earth. As it goes up the booster eventually burns out and ... down. But the farther the rocket gets from Earth, the less gravity there is. Consequently, if the rocket is going at great enough velocity at burnout, it will keep slowing down but it will never actually stop and fall back to Earth. That velocity is escape velocity and for Earth it is about 25,000 miles per hour or about 36,000 feet per ...

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