Just today, astronomers found 4 earth like planet that revolves around a star slightly smaller as our sun. The star is very near at only 1 light year away from our solar system, that means we have to travel at a speed of light at a duration of 1 year to reach there.
One of the planets is four times the size of earth, one is 6.5, one is 7 and one is 9. The closest to the star revolves around it once in four days (pretty fast - thier year is only four days).
They said it as earthlike because it holds significant amount of water. Presence of water can be detected through the different spectrum as seen on the radio telescope. Also scientist will know if there is a planet revolving a star because there is a slight wobble caused by the revolving planet.
I wonder if there is life on this planet and how would it look. What would be the cycle of life there since thier year is just 4 days. I can only wonder.
Mr. Ferniz,
This is amazing to read this. The fact that it is almost similar in size to that of earth means that it is habitable, colonizable. Mars, is slightly smaller than the size of earth, meaning that the gravity on the planet is smaller. However, NASA scientists declared that with presence of water plants, green plants, and a biosphere, the planet can theoretically be colonized. There is a high amount of Carbon dioxide in Mars.
This is conquerable.
Carbon Dioxide is taken up by plants (moss, trees, flowers etc) through their photosynthetic process. They eat CO2 and a byproduct of this cycle is O2 (Air). Breathable Air.
Theoretically, with that, life will and can succeed even in Mars.
As for these other Earth-like planets. This would be a break through. The fact that they discovered the presence of water in one planet, means that life has already evolved and manifested in that planet. Water is the original recipe for life. And the only reason why Earth has life is because of the presence of Water. The first life to ever manifest in earth was a simple bacteria--that evolved and manifested in the water. From bacteria, evolved into prokaryotes and eventually eukaryotes.
These other 'Earth-like planets' can be colonized. In the future, if Mankind needs to expand for resources and for breathing-space. These planets will definitely be conquered first.
The only limiting factor that prevents man from doing that now is our limited aeronautical technology. Currently, we do not have the technology to travel far beyond our solar system. Eventually, when we do improve and acquire advanced technology, man will have this ability to travel on light-speed levels to different systems in our milky way.
Man has always been an exploratory species. Through exploring, we conquered Earth. And have already begun the master of science. The Universe is but another 'exploration'.
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