Kepler telescope belonging to the space agency NASA has discovered more than a thousand planets outside our solar system (referred to as egzoplanetami). The researchers hope that you will find in the cosmos “second Earth” where life could exist.
A recent study, which was published in the scientific magazine “The Astrophysical Journal, ” , pay attention to the recently discovered eight exoplanets. Three of them are in the so-called. ecosphere, which is at a distance, which would provide the conditions needed for life. One of them – the Kepler 438b – is the major concern, because it is reminiscent of the Earth.
This is similar to the Blue Planet
According to estimates by scientists Kepler 438b is 12 percent. the size of Earth. Its surface is rocky, and the air temperature close to the earth. “Another Earth” gets about 40 percent. more heat from its star than our planet.
According to scientists, the star around which revolves Kepler 438b is a bit cooler.
– Kepler 438b revolves around cooler stars, so the sky will look more red than ours – explains Dr. Doug Caldwell of Seti (Search for Extra-Terrestrial Intelligence) Institute in California.
Kepler 438b is away from the Earth by 475 light years.
Other typing
So far, the most similar to our planet Kepler thought 186f. But today, scientists believe that the object Kepler 438b even more like Earth.
– The aim of the Kepler mission is to search for Earth-like planets. Each new result brings us one step closer to the answer to the question of whether we are alone in the Universe – says John Grünsfeld from NASA.
Exploration Earth
Working in space telescope Kepler identifies candidates for the planet, monitoring changes in the brightness of more than 150,000 stars in search of a situation in which a planet passes in front of its star, causing minimal briefly reduce the brightness. To the signal can be verified as a sign of the presence of a potential planet, must be repeated at least three times.
objects discovered by the Kepler mission requires further observation other telescopes to confirm whether we really have to do with planets. Currently 105 objects obtained confirmed the status of the planet.
No comments:
Post a Comment