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.