Our Solar System was
formed 4,600 million years ago from a swirling cloud of gases and
dust in orbit around the center of our Milky Way galaxy. It consists
of a sun, nine planets, 60 moons, an asteroid belt, 3000 asteroids,
100 billion comets, and many unknown phenomena. To understand more
about our Solar System, NASA has sent many artificial satellites to
study and take photographs of the nine planets. This has helped us,
along with the world, to learn more about the other planets.
The United States of
America is not the only country to have explored the outer planets.
In fact, the Russians won the Space Race, being the first country to
have a manned spacecraft leave the Earth's atmosphere and orbit it
one time. After that "competition" between the U.S.A. and Russia, the
understanding of space began to expand and grow. Countries began to
send unmanned satellites to collect data and take high resolution
photographs of the Earth and Terrestrial Planets. The data collection
from the Jovian Planets soon followed.
After the collection of
data, the government agreed that NASA should begin to send manned
space crafts into space to voyage to the Moon. This also proved to be
a wise investment, because the astronauts brought back valuable
information to open the locked door to reveal the secrets behind the
closest "rock" to Earth, the Moon.
To understand more about the
planets in the Solar System, click on the images below associated
with each planet.
http://bang.lanl.gov/solarsys/jupiter.htm .... http://bang.lanl.gov/solarsys/saturn.htm..... http://bang.lanl.gov/solarsys/uranus.htm..