Earth-like planets/cosmic bodies. Do we have a back-up plan? (part 2)

source: NASA

What if we had no option when it comes to saving the human species but to leave Earth? Would we have anywhere to go? Are there any planets with favourable environmental conditions for human life?
Here you have a list of some of the most habitable, Earth-like planets or cosmic bodies we currently know of:

Gliese 667Cc

Gliese 667Cc is an exoplanet at approximately 22 light-years from our planet, part of the Scorpio constellation. It’s been discovered on the 21st of November 2011.
The average temperature of Gliese 667Cc is of 4.3 °C (or 39. 6 °F). Also, it is bigger and heavier than our planet, characteristics which make it a super-Earth.

In terms of habitability, Gliese 667Cc seems to be fit for the developme


nt of human life as it is located in the habitable zone surrounding its star. The planet is stuck with one of its faces towards its host star-a red dwarf, meaning half of it is hot and always exposed to light, and the other one is colder and in complete darkness.
The imaginary line that separates these two extremes is called the terminator line. In the surrounding area, the temperatures reach 0 °C (32 °F), favourable for the existence of water in liquid form.

The only thing that keeps us from inhabiting this Earth-like planet is the fact that its level of tidal heating is 300 times higher than the Earth’s. It seemed just too good to be true, didn’t it?

Titan (also called Saturn VI or Saturni Luna)

source: NASA

Besides the fact that we would need a breathing mask and equipment to protect ourselves from the cold, Titan could potentially be a nice home for us. Titan is the biggest of Saturn’s moons.
You’d expect it to have a constant temperature, as it is a moon, wouldn’t you? Dead against everyone’s expectations, Titan even has weather (surprisingly, including wind and rain). Its temperature is at an average of -180 °C.
Saturn VI does not have any water, but methane, which has been proved to have a similar cycle to the one that water has on Earth. This explains the presence of methane lakes.

Its atmosphere is made up of 95% nitrogen (which cancels the oxygen in our blood) and 5% methane, but with well-produced equipment and enough water and food resources, humankind would have absolutely no problems living on this cosmic body.


source: NASA

Another one of Saturn’s moons, Enceladus, the brightest and most reflective body in our solar system, could sustain life. Researchers say that under its shiny, frozen crust, this moon hides a global saltwater ocean. This would be more than favourable for life. Moreover, certain events that have been taking place (such as jets of cold water and ice/snow coming from behind its crust, which are thought to be provoked by the heat) suggest the existence of a hot core.
It is a really small body, as it’s only 504 kilometres in diameter.

Enceladus has all the conditions needed for the development of life. These include heat/energy, water, carbon (whose presence denotes the existence of organic substances).
Still, whether or not we will be able to live on Enceladus, is to be seen in a matter of years.

The thought that humanity could live on any place other than Earth has me standing on the edge of my seat. Don’t you too feel excited?
Stay tuned for more information about Earth-like planets or cosmic bodies we could develop our life on! I’ve got so much more!


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