For the first time astronomers seem to have found what they were looking for so long: a second Earth, that is older than earth.
As announced, they found an exoplanet with a size similar to Earth, is the so-called “habitable zone”, that is the proper distance from the parent star to have liquid water and therefore can potentially host life – however, something that can not yet be confirmed.
To program costing NASA $ 100 million, but it was worth it.
With features similar to Earth, the planet Kepler – 452b in the constellation Cygnus identified by scientists at NASA, using the telescope Kepler, is what is closest to ‘brother-world “of our own planet.
O Kepler – 452b has size 60% larger than Earth and orbits its parent star in the “welcoming zone”, which means that there event on the planet to have water.
It moves around a star that is 1.5 billion light years older than our Sun, but emits the same light. The planet Kepler-452b is not the only one of its kind: NASA has confirmed that measured 500 new exoplanets, of which 12 are located in the habitable zone.
The discovery of a planet that looks like Earth so touched millions of people around the world, and even astronaut Chris Hadfield wrote in the tweeter: “What is shocking is not only the discovery of a planet that looks like Earth. It is the fact that there are thousands of other similar “wrote, thrilled.
The most excited, however, expressed the desire to embark directly on a trip to Kepler-452b to see from there the situation in which our own planet is Earth.
But two elements not permit or thinking about a space trip to Kepler: first, because the distance that separates us is too great for human scientific boundaries and secondly, Kepler is likely to decline rather than at its peak. The Sun is aging and must have started to overheat resulting in the oceans of the planet, if we assume that, you will need to have evaporated, explains astronomer Doug Caldwell.
“Kepler can give us shocking information about what the future of the Earth, that’s great!” Says the scientist, meaning that we will learn the course and the death of a planet. Shocking or depressing?