The search for a planet habitable to humans, just like earth, is only at its beginnings, as studies show most earth-resembling planets are not born yet.
Since Stephan Hawking proved that the Universe did indeed have a starting point and wasn’t there forever, like it was believed, many more things have been found out about it and its planets. For example, since then, scientists have been able to calculate exactly when it was born. It seems as though the Big Bang took place 4.6 billion years ago. At that particular point, only a small number of the planets we can now call habitable for humans were born as well. The figures point to close to ten percent out of the total number of planets in the universe.
Also, scientists have been able to mathematically deduce when it will all be over for us and our galaxy. That will happen some 6.2 billion years in the future when our Sun, like any other self-respecting star, will burn out. But this means that from now and until then, there are still 90 percent of the habitable planets to be born.
Of course, this is not a short term solution or good news for us or our children, but future, future generations might actually find a new-born baby planet that is a lot like Earth and colonize it. And maybe this will give mamma Earth a chance to take a break.
The study was performed at the Space Telescope Science Institute in Baltimore, Maryland, by Peter Behroozi. He discovered that our galaxy is actually home to a very great number of habitable planets. They are all found in what specialists call the star’s “habitable zone”. This means that the star is located the perfect distance from the Sun that it allows it to house water on its surface. And water means life.
The survey in question also let its authors known that the Milky Way is currently home to approximately one billion planets roughly the same size as Earth, most of which are rocky. But of course, there are 100 billion galaxies out there. So if you do the math, the number of planets we might have a shot to is absolutely incredible.
Also, these 100 billion galaxies are located in the “observable” universe. If human technology develops any further, as it probably will, we might be able to travel to the dark side of the universe, the one we haven’t seen so far. And this only means that our chances of finding another home planet have just gone from absolutely incredible to positively endless.
One thing that has come out of these scientists’ study is important to mention. Even if the possibilities are endless, there is a better chance that we do find this planet not in our own galaxy, the Milky Way, but in another. Planets need gas and debris to form and the Milky Way has almost used up all of its gas deposits for the formation of future stars.
However, this should not scare us. Moving not only to a different planet but to another galaxy is just like moving to another city, right?
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