Discover 8 planets newly in life resident area outside the solar system

ByJeff Schwartz

NASA 's Kepler Space Telescope constantly monitors more than 150,000 stars outside the solar system, so far it has exceeded 4000Planet candidateI have found. Eight celestial bodies were recognized as planets from among the planet candidates found by Kepler Space Telescope, which caused the number of planets discovered by the Kepler Space Telescope to exceed 1000.

NASA's Kepler Marks 1,000th Exoplanet Discovery, Uncovers More Small Worlds in Habitable Zones | NASA
http://www.nasa.gov/press/2015/january/nasa-s-kepler-marks-1000th-exoplanet-discovery-uncovers-more-small-worlds-in/


BBC News - 'Alien Earth' is away eight new far-off planets
http://www.bbc.com/news/science-environment-30705517

The eight planets discovered by the Kepler Space Telescope are the environment suitable for the creation of life in the universe "Habitable zoneWhat exists in ". The earth exists in the habitable zone of the solar system, but these planets are in the habitable zone outside the solar system. The size is less than twice the size of the Earth and is considered to be "a planet where the possibility of existence of life is much higher than others".

Several of these planets seem to be distant from the stars, it seems that liquid water may exist on the surface of the planet, and some planets in it are shaped like rock like the earth There is a high possibility that it is.

The figure below compares the sizes of eight planets aligned with the earth. For example "Kepler 186 f"Is a planet that exists 500 light-years away from the earth and is 1.1 times the size of the Earth. And it revolves around the star "Kepler 186" which corresponds to the sun for "Kepler 186 f".


"Kepler 438b" exists at a distance of 475 light years from the earth and its size is 12% larger than the Earth. "Kepler 442b" is a planet that is 1100 light years away from the earth and is also a 33% larger planet than the Earth. "Kepler 438b" and "Kepler 442b" are smaller and cooler stars than the sunRed dwarfThe revolution cycle is "Kepler 438b" is 35.2 days, "Kepler 442b" is 112 days. It is said that these planets exist in the direction of.

In addition, the Kepler Space Telescope added 554 celestial bodies as a candidate for an extra-exterior planet, and it seems that there are six planets that are similar in size to the earth and exist in the habitable zone .