Scientists believe that in our native Galaxy there are many planets that, like the Earth, could become the cradle for the birth of life. Researchers scrupulously search for planets that have water and atmosphere, similar to the Earth by mass and distance from its luminary.
After analyzing hundreds of celestial bodies, the scientists compiled top-7 planets of life-friendly .However, it's not easy to fly and see with your own eyes how things are in reality, the closest of Mother Earth's sisters is about 20 light-years away from us.
Contents:
- 7. Gliese 581g.
- 6. Gliese 667Cc.
- 5. Kepler 22-b.
- 4. HD 40307g.
- 3. HD 85512b.
- 2. Gliese 163c.
- 1. Gliese 581d.
7. Gliese 581g.
If the planet is suitable for life, then its inhabitants should be very different from terrestrial life forms - because the dimensions of the celestial body exceed the dimensions of the Earth three times. The average temperature on the surface is from? 31? C to? 12? C.
6. Gliese 667Cc.
The planet is located in the constellation of Scorpio and belongs to the category of so-called "Super Earth" space bodies. Gliese 667Cc exceeds the Earth by 4.5 times. The temperature at the surface is probably around 27 ° C.The planet circulates around its star in only 28 terrestrial days.
5. Kepler 22-b.
This probably livable planet is 620 light years away from us and weighs 2.5 times the size of the Earth. NASA's "Keppler" telescope discovered the planet on December 5, 2011.The year on Kepler 22-b lasts 290 terrestrial days, and the temperature at the surface can be about 22 ° C.
4. HD 40307g.
In terms of its size, this planet from our Top 7 is more like the Earth than others, only slightly exceeding its size. The distance from HD 40307g to the parent star is 90 million kilometers, and scientists believe that such remoteness in the presence of the atmosphere allows creating suitable conditions for the birth of life.
3. HD 85512b.
The planet that closes the top three of the top 7 planets suitable for life, is located in the constellation Sail. Probably, this "relative" of the Earth has some water on the surface, and the temperature on the planet in the presence of the atmosphere fluctuates around 80 ° C.
2. Gliese 163c.
The largest planet from the number of fit for life - its mass exceeds the terrestrial 7 times. Scientists believe that the Gliese 163c is either a huge rocky planet or a gas giant. A complete revolution around the star takes 26 Earth days.
1. Gliese 581d.
The first line in the list of planets suitable for life occupies Gliese 581d, remote from the Earth for 20 light years and "inhabiting" in the constellation Libra. Scientists believe that the planet has a dense atmosphere, consisting of carbon dioxide. Modeling shows that there may be water oceans on the surface of the planet. Rotates Gliese 581d around the red dwarf, and due to the dense and different in composition clouds on its surface always reigns reddish twilight.