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Sunday, October 23, 2016

Discovered nine potentially habitable planets

Astronomers at the American space Agency NASA announced that the space telescope “Kepler” they were able to confirm the existence of planets 1284, 9 of which are in the habitable zone. This is a record number of planets, the discovery of which was announced at the same time.

photo: morguefile.com

To a space object has got the status of exoplanets (planets outside the solar system), the probability that it is true, must exceed 99 percent. Prior to that, the objects have the status of potential exoplanets. Until recently, the list of potential exoplanets, open the “Kepler” was 4,302 cosmic bodies. In the new analysis found out that 1 of 284 of these are exoplanets with sufficient probability. 1 327 almost certainly will also be established, however, to achieve a “99-per-cent threshold” will need further investigation. Finally, the remaining 707 candidates are likely some other objects, say astrophysics.

The area of habitability, in which there are nine of the confirmed exoplanets, the conditional region around a star in which planets could be like earth. First and foremost we are talking about the fact that the temperature on these planets may be not too low and not too high for the existence on their surface of liquid water. On the planet, located close to the star must be too hot for life to exist, on a planet that is far — too cold, and only in the zone of habitability conditions can be perfect. For this reason, the scientific literature in English this region is often called the “Goldilocks zone” in honor of the heroine of the tale, in Russia known as “the Three bears” or “Masha and three bears”.

Telescope “Kepler” was launched on 6 March 2009 and operates to this day. It is named in honor of the discoverer of laws of planetary motion in the Solar system Johannes Kepler. Unofficially, this telescope is sometimes called the “catcher of the planets”. Several times due to breakdowns the future work of the telescope was threatened. The largest of these failures was recorded in may 2013, when he failed the second of four reaction wheels of the satellite (the first broke in 2012). A year later, scientists were able to resume work at the telescope, using instead of the third motor flywheel pressure of solar radiation. “Kepler” has again failed about a month ago, but a few days later, continued the work. It is expected that the telescope will serve scientists through 2018.

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