Life Outside Our Biosphere Essay Research Paper

Life Outside Our Biosphere Essay, Research Paper

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 on the

Earth’s supplies for construction and maintenance. The Soviets have launched a

brigade of structures called Salyuts. In fact, one of their cosmonauts has

lived in space for more than 235 days! They supplied the Salyuts by shuttle

craft flying from the Earth and back, carrying supplies and returning with

wastes. Americans also launched a space station, called Skylab. This structure,

far larger than the Soviets’, was too expensive and was abandoned after some

months of occupation. These mini-colonies had very primitive conditions, with

no gravity and an awkward lifestyle.

Scientists predict that space colonies of the future will be much

different from these first primitive attempts, but knowing which design they

will adopt is difficult. Most engineers agree that they will be in a round

configuration, slowly rotating, causing centrifugal force with effects like the

Earth’s gravity. Some experts believe that colonies will eventually be around

200 km2, with some large enough to house one million people. Because the colony

will be environmentally controlled, natural disasters will be almost obsolete.

The only things to worry about will be asteroid showers, which only occur about

every one thousand years. Factories and other industrial facilities will be

nearby, along with the greenhouses.

One of the biggest benefits of these space stations is the excellent

agricultural potential. The orbiting space station is constantly exposed to the

sun’s rays, and 24 hours a day of photosynthesis in a greenhouse could give the

colony all the food and oxygen it could need. If some of these resources could

be sent back to Earth, less arable land would be ruined by over farming for

starving people. Massive amounts of energy in the universe are unused, and

solar panels constantly exposed to unfiltered sunlight may harvest some of this

energy. Huge solar panels attached to the station could provide for all of its

energy needs, leaving extra to provide for those still on Earth.

The construction of space stations will be a compilation of resources

from across the solar system. Initially, we will obtain much of the material

from Earth, but we have other sources available to us. Rock, glass, metal, and

oxygen taken from the moon would be better than if it were taken from the Earth,

because the moon has such low gravity

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