Milky Way turns out to save at least 17 billion planets that are similar to Earth. It means that everyone in the world had a ration two or more planets.
Fressin Francois of the Harvard-Smithsonian Center for Astrophysics said, it is too early to determine how many planets have a water supply, as quoted by the Associated Press on Tuesday (1/8/2013).
The discovery was the first count of the number of planets outside the solar system that has the same size with the Earth. Search for Earth-like planets is apparently still unfolding away.
Regardless of the number of discoveries of new planets in the next few years, people still in the search to find a planet that has the right size and air temperature for water to remain liquid.
The number of Earth-sized planets provides the starting point of the astronomer to search for planets which roughly could be livable.
The amount of 17 billion retrieved Fressin and his team with the latest analysis based on data collected the Kepler spacecraft, courtesy of NASA. Kepler was launched in 2009 with the aim of finding out the existence of other planets similar to Earth. They estimate that at least one of the six stars in the Galaxy took control of an Earth-sized planet.
Using different methods, a team from the University of California, Berkeley and the University of Hawaii separately also revealed similar results. They count as much as 17 percent of stars that is located far away have planets Earth-sized or a little larger. The findings presented in the astronomical Community of the Americas (American Astronomical Society) in Long Beach, California.
Meanwhile, Kepler continued its search. According to scientists in the Mission of Christopher Burke, the spacecraft found 461 new planet candidates bringing the total potential livable planet humans as much as 2,726. Most of Keplers discovery is the planet Earth-sized or larger. Four of which are located in the so-called Goldilocks zone, but further observation is needed.
Fressin firmly say, planets outside the solar system are abundant. “When we look at the starry sky, almost every star that we see has a planetary system,” he said.