Wednesday, October 29, 2008
(Earth's atmosphere ----*******#####):(:):)XD rofl :)
The earth's atmosphere is much different than the moons. For one, all objects that come into earth are usually burned up due to our atmosphere. The atmosphere is earth is made up of 70% nitrogen, 21% oxygen, and 1% of other gases like argon. Our planet, Unlike others, also contains life. Our atmosphere protects us from the sun and gives us oxygen to breathe. Its pretty cool that there used to be no oxygen at all, but tiny bacteria converted the carbon dioxide into oxygen. The moon has very little atmosphere. Caters and footprints are still on the surface of the moon because there is no forces to erode them away. The is also no water on it to sustain life. Because of extreme atmospheres found in the other planets, no planet but Earth has intelligent life on it. No life that we know of anyway. Earths atmosphere is what makes life possible on Earth.
Monday, October 13, 2008
Wednesday, October 1, 2008
Summaries
The science of rockets:
NASA used to use atlas rockets to put satellites or spacecraft in space. These rockets had three parts. The Atlas witch launched the rocket into space with it fuel cells, then the Centaur, witch maneuvers it into the proper orbit, and finally, the third stage witch is the payload, or the satellite or spacecraft realeasement. Now they've been upgraded and offer launch company satellites into space.
The space program:
NASA's job is basically to explore space. So they needed to put humans in space to explore it. NASA eventually after a few tests was able to send people into space. Project Apollo put humans on the moon. Apollo 13 attempted to put people on the moon again, but was unsuccessful. The astronauts barely made it home alive. By 1972 three other NASA spacecraft had explored the moon. These other observers sent there found ice deposits on the moon.
Exploring space today:
On the international space station they have designed a working “helper robot.” This robot can float and is powered by solar energy cells. It can monitor pressure, air quality, temperature, and has a videophone so astronauts can communicate with each other. They also perform regular safety sweeps on their own.
Using space science on earth:
Many people think space exploration is a waste of money, but NASA says that it helps our economy. We have also had many breakthroughs here on earth because of what we learned in space. NASA just pushes people to explore the unknown.
NASA used to use atlas rockets to put satellites or spacecraft in space. These rockets had three parts. The Atlas witch launched the rocket into space with it fuel cells, then the Centaur, witch maneuvers it into the proper orbit, and finally, the third stage witch is the payload, or the satellite or spacecraft realeasement. Now they've been upgraded and offer launch company satellites into space.
The space program:
NASA's job is basically to explore space. So they needed to put humans in space to explore it. NASA eventually after a few tests was able to send people into space. Project Apollo put humans on the moon. Apollo 13 attempted to put people on the moon again, but was unsuccessful. The astronauts barely made it home alive. By 1972 three other NASA spacecraft had explored the moon. These other observers sent there found ice deposits on the moon.
Exploring space today:
On the international space station they have designed a working “helper robot.” This robot can float and is powered by solar energy cells. It can monitor pressure, air quality, temperature, and has a videophone so astronauts can communicate with each other. They also perform regular safety sweeps on their own.
Using space science on earth:
Many people think space exploration is a waste of money, but NASA says that it helps our economy. We have also had many breakthroughs here on earth because of what we learned in space. NASA just pushes people to explore the unknown.
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