Life Outside Our Biosphere

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Term Paper Title	Life Outside Our Biosphere
# of Words	854
# of Pages (250 words per page double spaced)	3.42

Life Outside Our Biosphere

Life Outside Our Biosphere

     The fragile balance of the Earth's ecosystem is constantly being
disrupted.  Overpopulation is placing heavy strain on the world's resources.  We
are burning all our fossil fuels to create the energy we need, and clearing our
rainforests to make enough farmland to feed everyone.  The ozone layer is slowly
eroding, exposing us to harmful UV light.  The room we have on this planet is
just enough  to provide for our population now! As the population grows, we will
find ourselves more and more crowded, with no room left to expand.  Solution:
Transfer part of the population off the Earth, to colonies established either on
other planets or on orbiting space stations.  This will lessen strain on the
world's land resources by providing more agricultural area, and will help solve
problems associated with overcrowding.
     In our solar system, a few planetic possibilities exist for colonization.
Mars, one of our closest neighbors, was previously a prime choice until it was
explored more in depth.  Scientists have now found it to be a red, rocky, barren
desert with little atmosphere, no water, and containing no life.  If Earthlings
were to settle on Mars, we would remain totally dependent on the Earth's
resources.
     Another close planet is Venus, the second from the sun.  This "sister
planet" of Earth proved to have extremely hostile conditions.  Scientists were
hopeful when they found traces of water vapor in the upper atmosphere, but were
disappointed when concentrations of sulphuric acid were discovered mixed with
the water.  Venus has surface temperatures of around 600 degrees Fahrenheit, and
an atmosphere one hundred times as thick as the Earth's.  (This produces
pressure equivalent to pressure two miles under water on Earth.)  These
conditions project a less than comfortable life on Venus.
     The Moon has held Man's curiosity since we were created, leading to such
missions as the Apollos.  These space missions have taught us a lot about what
life on the moon would be like.  The moon has little to offer us in the way of
settlement: it has little to no atmosphere, and only one sixth of the gravity of
Earth.  Although the moon might not be the best place for colonies to settle, it
would be an excellent source of resources for nearby space stations.  (
Scientists can extract oxygen from the rocks, and glass, aluminium, and other
metals as well.)
        Space stations orbiting in the past have been very dependent...

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