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Originally Posted by Guest
By the way the rockets that put the satellites in orbit emit a lot of smoke and chemicals...might be bad for the environment, but worth it to be able to see the ice caps melting.
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Liquid propelled rocket engines:
"The main engines burn liquid hydrogen -- the second coldest liquid on Earth at minus 423 degrees Fahrenheit (minus 252.8 degrees Celsius) -- and liquid oxygen.
The engines' exhaust is primarily water vapor as the hydrogen and oxygen combine."
"Currently the U.S., European, and Indian governments power their rockets with a mix of liquid and solid fuels, which generally take the form of powder or crystals. Russia and China use liquid fuels almost exclusively. "
""What we have shown in the Astropolitics paper is that the rockets of the future will use liquid propellants and that they will fly ten or one hundred times more often than today's rockets," he continued. "
Rocket Launches Damage Ozone Layer, Study Says
I wouldn't worry about it...