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Astronomers have revealed that two Earth-like planets are only 12 light-years away from the planet, gravitating around a star-shaped star that may contain liquid water and possibly a form of life.
Both planets revolve around a star called Tegarden and circulate in the area conducive to life, such as the Earth's orbit around the sun. They were discovered by the Thaler Alto observatory in Spain last June.
According to the scientific press, the two planets orbiting Tigard, at 12.5 light-years from Earth, lend themselves well to the presence of liquid water on their surface because of the need for it. atmosphere.
According to scientists, the "B" and "C" planets of the star Tigard can withstand the presence of water on them, even if they do not know the shape of their atmosphere.
Scientists say that even though the atmosphere of the two planets is relatively thin, compared to the Earth's atmosphere or much thicker, these two worlds can still be viable and the presence of water.
It is worth mentioning that the two planets, which follow the star Tigard, for the first time in June 2019, through what is known as the "Carmenis investigation" of the world. Thalar Alto observatory.
Tigard, named after astrophysicist NASA Bonard Tigard, is a red "dwarf star" that has few rays and energy compared to our sun.
The two planets orbit very close to their star, which means that the same side of each planet is still facing the Tigard, knowing that the planet B revolves around the star once every 5 days, while the cycle of the star ends every 11 days.
Some scientists argue that a phenomenon called "tidal locking" can accompany both planets, the same phenomenon that keeps the moon's side close to the Earth's surface, which means that one must ensure the continuation of tidal conditions, which helps sustain life on these. This type of climate is necessary for the availability of liquid water on them and thus supports the existence of life.
However, NASA astronomer Jesse Christiansen, who did not participate in this study in The New Scientist, confirmed that the planets closed in the tides could be obstacles to the evolution of the life.
Some experts believe that the "day and night" cycle is vital for living organisms, which can not be lived in a world that always keeps the same side as its star. In addition, "tidal locking" can restrict the space. Magnetic planet, which means that these bodies will be more susceptible to harmful radiation than their host star.
But Kristiansen said that despite these concerns, "the two planets around the star Tegarden are very exciting," noting that they will be the subject of a study for some time and that the possibilities will explore the presence of liquid water on them.
Source: News from the sky
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