A global catastrophe and we have to vacate the land. How long will it take to get to the most Earth like planets out of all that we have found to date? To begin with, the most Earth like planets of all detected is Kepler 452b.
Know about this planet, thanks to the space telescope Kepler, launched in March 2009 and who prey on the planet the last 5 years. Kepler 452 a star similar to the Sun, which is hurtling through space 1,400 light years from Earth. It should be noted that the star has the same surface temperature as that of our sun and almost the same energy output.
In general, as the sun, and Kepler 452 a yellow G-type dwarfs. This means that the Kepler 452 habitable zone the region around the star, which could theoretically exist, liquid water is almost identical to the sun. And interestingly, in the area around this star it revolves planet path which is almost identical to Earth, Kepler 452b. This planet takes almost the same place as the Earth in the solar system.
From this it follows that the length of the year on this planet is almost identical to our own, and the amount of energy that the planet receives is strikingly similar to what the Earth receives. The orbit of Kepler 452b for completing 385 days and receives only 10% more energy than the Earth.
Scientists can not measure the mass of Kepler 452b directly, but the conclusions are based on simulations indicate that the planet only five times the mass of Earth about 60% more. This strongly suggests that the solid-state world similar to ours, and it’s very good for us because technology is no residence on the gas giants. In addition, the force of gravity is twice the Earth. This can greatly complicate the life of the planet, but in general does not make accommodation.
To begin with, we define what a light year. It is the distance that light can pass for one year (obvious, is not it?). Light travels about one billion kilometers per hour. This means that light travels in a year to 9.5 trillion kilometers. 1,400 light years – about 13.3 quadrillion kilometers. If we run the planet’s fastest your probe New Horizons, which is currently moving at a speed of 50,000 km / h, it will need 26 million years to get to a new destination.
For comparison, modern people have evolved about 200 000 years ago. From Africa we left, at the earliest, 130, 000 years ago. These numbers are not nearly comparable to 26 million years, that we need to reach Kepler 452b.
In fact, not be much better. Even if we travel at the speed of light the maximum possible velocity at the moment, we would need 1,400 years to reach the desired planet. If our ancestors have left in this world, they would have to be nominated in the year 615 BC, to get back to the present day.
Of course, traveling at this speed means that the game will take time dilation. Thus, those who will be on the ship, feel as though it’s only been a century. But in the universe and everyone else in it the flight takes 1,400 years. In the end, when our immigrants arrive at their destination, if not the universe, the solar system has changed significantly.
Of course, there are other planets to which we can send some of them are located much closer. Alpha Centauri Bb, which is considered the closest planet to Earth outside our solar system, for example. It must revolve around Alpha Centauri B, although it is not yet sure. And yet, if we admit its existence, it is in the 4.37 light-years from Earth. Traveling at the speed of light, we would have reached it in only four and a half years.
However, even if it is there, we are unlikely to want to visit it, because the planet is very close to the parent star. It completes an orbit in 3 days and 5 hours. Planet unbearably hot and not able to support any kind of life. So let’s just hope that the global catastrophe that could doom our solar system to death, will not be simple. At least for her, we must settle on time.