The interesting thing about philosophy is that the majority of the time there is always an open-ended question that can not be answered, especialy when it comes to the cosmos.
If you all think that the earth and the life is sustains exists without purpose or significance in the universe, so be it.
There are billions of planets that are billions of years older than earth. yet zero trace of life.
Two sides of the eqaution:
1: Number of trials
2: Factors
All institutes searching for life elsewhere ALL use the same starting factor for the search of
intelligent life
liquid water
-dissolve and transport chemical nutrients
-unmatched capacity to absorb the heat from the sun. critical to regulate earths surface temperature.
Planets
distance from it's home star:
Earth is in the goldilocks zone - location location location
Orbiting main sequence G2 dwarf star (only 10% of the stars in the galaxy) If the star were smaller, we'd need to be closer. Putting us in synchronization with the stars orbit. In lesser words,
bad.
Protected by gas giant planets (shielding earth from too many impacts)
within circumstellar habital zone
nearly circular orbit
Oxygen - rich atmosphere
Correct mass
Orbitied by a
largemoon (stabilizes angle of axis - 23 1/2 degrees - insuring temperate seasonal changes)
Magnetic field (protecting us from solar winds)
plate tectonics (Must be 30-40 miles, Regulates earths temperature)
Ratio of liquid water and continents
terrestrial planet
moderate rate of rotation
atmosphere - 78% nitrogen 21% oxygen - 1% carbon dioxide
all these elements need to be there at the same time.
1/1,000,000,000,0000,000 of a chance
The earth is a very special place.
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10/24/1995
Northern India - Total Eclipse of the Sun
Requirements for producing such an event?
Luminous body(sun) - Eclipsing body (moon) - observing platform (earth) and in a straight line
The
apparent size of moon has to be the same as the
apparent size of the sun in the sky.
The sun is 400x bigger than the moon and it is also 400x further away.The sun is the perfect distance to create liquid water
The moon is the perfect distance to create the appropriate tilt to create gravity and our magnetic field which protects us.
If you think our planet is here by chance, then that's your right.
blessings to you
This post was edited by herbdoc on Nov 6 2014 01:19pm