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A rocket is a device that generates a propulsive thrust by exhausting a propellant at a high velocity. The momentum of the exhaust mass creates a reactive force on the rocket vehicle. Possibly the simplest example is a balloon. When inflated and released the air inside is squeezed ...
... know how much it costs NASA to fly the Space Shuttle once, then that number is a little easier to find. Depending on how you count it's between $500 million and ...
A rocket vehicle has many parts including the rocket engines, a steering mechanism, propellant tanks with feed lines and valves, a tank pressurization system for liquid propellants, stage separation rocket motors (retro rockets), a guidance system and avionics ... /For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - ROCKETS
A meteor is a grain of dust (or perhaps a slightly larger object) that enters the Earth's atmosphere, and then burns up as a result of friction with the air.
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Answer provided by Alan ...
... tilted 45 degrees to the plane of the solar system's eight major planets. It is so far away that it takes 560 years for this planet to complete one trip around the Sun. At its most distant point from the Sun, the planet is about twice as distant as Pluto. At its closest, it passes inside the orbit of ...
Space weather is vastly different than terrestrial weather. It generally involves storms on the Sun—enormous masses ...
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, or heavy, in the center. That massive thing could be a very large group of stars, or even a giant black hole. That black hole could be as large as ...
Actually, in the future we can hope that space travel will help stop pollution. Learning to purify water and air on spaceships will also teach us how to clean the air and water on Earth.
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Answer provided by Robby Gaines
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
Image:9781894959421.jpg '''Buy ...
Neutrons Neutron stars are the highly compressed remnants of stars that have died. They are packed so tightly that only neutrons can exist.
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Answer provided by Dirk Terrell, Ph.D.
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
Image:9781894959421.jpg '''Buy This Book''' http://www.apogeebooks.com ...
... of the propulsive energy of a rocket vehicle comes from the propellant and its exhaust velocity. The maximum, or ideal, velocity that can be obtained by a single stage rocket is roughly twice the exhaust ... it is difficult to get more than 65,600 feet per second from a chemical rocket. However, a spacecraft swinging by a planet can get a gravity-assist and increase its velocity. Future nuclear electric rockets may ...
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