Friday, August 1, 2008

Ideas about living on Mars
Context image for 20080721a Wide context image for 20080721a Mars Odyssey Mission THEMIS
Photo credits: NASA/JPL/M
fullmap
Photo credit: NASA/JPL/MOLA
These are images of the surface of Mars from NASA's Mars Odyssey Mission, which I am not affiliated with in any way... I'm only a student of biology and earth science, with a little bit of planetary geology interests. Right now NASA is awarding contracts to one university and 11 companies to develop concepts of Lunar Surface Systems the allow astronauts to work and live on the moon. I think that in the future we can and will do this on Mars.
http://www.nasa.gov/mission_pages/phoenix/main/index.html <-----The Phoenix Mars Lander has discovered water in soil samples from Mars check out this link for the whole story.
What would be needed for Astronauts to realistically live in Mars? First we must look at some basic facts about Mars as a planet.
The information bulleted below was found at: http://www.windows.ucar.edu/tour/link=/mars/statistics.html
  • We now know there is real and very present water in the soil of the planet Mars. This is in the form of a hard layer of frozen soil found in a 2 inch deep trench.
  • The diameter of Mars is: 6,785 km (4,217 miles).
  • Temperature of Mars: -129o C to 0o C ( -200o F to 32o F)
  • Mass of Mars: 0.64x10^24 kilograms (0.11 x Earth's)
  • Density of Mars: 3,933 kg/m^3
  • Minimum distance from the Sun: 205 million km (128 million miles)
  • Maximum distance from the Sun: 249 million km (155 million miles)
  • Minimum distance from Earth: 35 million miles
  • Orbital semimajor axis: 1.52 AU (Earth=1 AU)
  • Satellites: 2 Phobos & Deimos
  • Surface gravity of Mars: 3.7 m/s^2 (0.37 x Earth's)
  • Rotational period about axis: 24.6 hrs
  • Revolution period around the Sun: 1.88 years
  • Tilt of axis: 25o 12"
  • Average surface temperature (K): 218K
OK so I'm not an astronaut I'm an ecology student so I will leave the getting there part to them and focus on the possibilities that can be created once we can get someone there. Please feel free to post a reply with your ideas on the subject matter.
Mars Proposal: 2008 1st draft hypothesis
Living conditions : Initial Phase
  • Mars is obviously very cold, sometimes more then others, so a well insulated structure would be the first thing that would need to be constructed for the astronauts to live in.
  • A clear maybe Diamond coated dome structure covering a large area, eventually multiple structures, good place looks like the Gusev Crater.
  • Ground needs to be warmed to release liquid water. Allow a fresh water sea to develop in the lower elevations inside the dome with islands throughout.
  • Solar panels set up for power/electricity.
  • Seeds of vegetables, herbs, flowers, trees, non-vascular plant seeds need to be brought from earth and planted inside the domes once there is available water and soft enough ground. Planting would be successive, mosses and non-vascular plants first to condition the soil along with mushroom fungi for decomposers. Followed by ferns, angiosperms, and conifers. Plants are essential to the whole process, they provide food, vitamins, and oxygen.
  • Micro-marine algae, cyanobacteria, and other photosynthetic plankton needs to be grown inside the dome for oxygen, nutrients, and scientific use.
  • Cloning of a few select animal in the beginning (store DNA of other animal)
    • Primarily lots of fish & marine creatures
    • Some free roaming domesticated cows
    • Cats..domestic and wild
    • Birds
    • Dogs:wolves/huskies
    • Bats & insects for pollination
  • Extreme cold conditions (highs of 32'F /0'C) of Mars necessitate the need to construct heated walkways, ground heaters, heated pools and man-made hot springs.
  • Restrict normal construction along coast lines of waterways and lower elevations, such as housing. Limit to research field stations, fishing posts and beach access.
  • Construct irrigated canals and gardens throughout the higher elevation living spaces. Canals used for watering fields, transport, public fresh water supply, public hot springs, public swimming holes
? WHAT IS THE CURRENT CHEMICAL MAKE-UP OF MAR'S ATMOSPHERE AND HOW WOULD IT RESPOND TO AN INPUT OF OXYGEN?
? Are carbon-containing chemicals & other raw materials for life present in the soil/water of Mars?
Real color image of the highest volcano on Mars, the caldera of Olympus Mons.
Courtesy of NASA
Gusev Crater. NASA/JPL
Topographical map of Gusev Crater on Mars
http://www.fourmilab.ch/cgi-bin/uncgi/Solar/ <<<<---------- A really cool website that
that show you where the planets in our solar system really are on a given day. You can also track comets and asteroids from this page. when you get there under "Show" click "images" and update. you can also make the picture larger.
Courtesy of NASA
False color photo of the Polar cap at the South Pole on Mars.

Thursday, July 31, 2008

ओरिगिंस ऑफ़ लाइफ (origins of life)






Very cool scientific theory, I love my science daily hehehe microbes ahhh how cute

Science News http://www.sciencedaily.com/releases/2008/07/080728220324.htm
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Diamonds May Have Been Life's Best Friend On Primordial Earth
ScienceDaily (July 30, 2008) — Diamonds may have been life's best friend. Billions of years ago, the surface of these gems may have provided just the right conditions to foster the chemical reactions believed to have given rise to life on Earth, researchers in Germany report.
Their study is scheduled for the August 6 issue of ACS' Crystal Growth & Design, a bi-monthly journal.
In the new study, Andrei Sommer, Dan Zhu, and Hans-Joerg Fecht point out that scientists have theorized for years that the chemical precursors of life gradually evolved from a so-called "primordial soup" of simpler molecules. But the details of how these simpler amino acids molecules, the building blocks of life, were assembled into complex polymers, remains one of science's long-standing mysteries.
To find out, the research team studied diamonds, crystallized forms of carbon which are older than the earliest forms of life on Earth. In a series of laboratory experiments, the scientists showed that after treatment with hydrogen, natural diamond forms crystalline layers of water on its surface, essential for the development of life, and involved in electrical conductivity. When primitive molecules landed on the surface of these hydrogenated diamonds in the atmosphere of early Earth, the resulting reaction may have been sufficient enough to generate more complex organic molecules that eventually gave rise to life, researchers say.

See also:
Earth & Climate



Fossils & Ruins



Reference
Humus
Photosynthesis
Biosensor
Carbon cycle

American Chemical Society. "Diamonds May Have Been Life's Best Friend On Primordial Earth." ScienceDaily 30 July 2008. 31 July 2008 http://www.sciencedaily.com/.