At a distance of 470 light years, astronomers found a duplicate Earth

It is reasonable to expect the discovery of extraterrestrial life on Earth’s twin. That is, we should find an extrasolar planet whose features are similar to those of Earth. Researchers have already discovered such a world, but does it have the potential to be habitable?

Kepler-438 b is brought to your attention! It is literally an Earth twin, 470 light years away from us. A planet can be found in the constellation Lyra near the star Kepler-438. It is a solitary red dwarf with a mass of 0.54 solar and a radius of 0.52 solar.

The planet Kepler-438 b is only 12% larger than Earth in size, and its index of resemblance to our planet is 0.9 (maximum – 1), putting it first among all known exoplanets in terms of similarity.

Furthermore, the exoplanet lies in the star’s habitable zone, so it receives enough light and heat to have liquid water on its surface. Spending around 35 days in one orbit. Some may argue that such close closeness to the star is harmful to life, yet red dwarfs have lower temperatures and luminosities than the Sun.

Kepler-438 b and Earth Comparison For a long time, scientists assumed that this planet could support Earth-like climatic conditions with water, rain, clouds, and air. Unfortunately, reality was more depressing. The fact is that Kepler-438 b closely resembles Earth, but you must also consider the activity of the local star.

In 2015, scientists discovered that the red dwarf Kepler-438 is a sort of flashing star. Furthermore, these flashes occur just once every few hundred days, and their power is ten times that of the sun indices (100 billion megatons of TNT). This implies that the planet is constantly bombarded with a high dose of radiation, resulting in the loss of the atmospheric layer and the annihilation of all prospects for the creation of life.

As a result, when hunting for life, you must consider not only the properties of the planet, but also the actions of the native star. Researchers predict that if the exoplanet Kepler-438 b can save a large magnetic field, it will be able to keep the atmosphere and primitive life forms in water.

Of course, the temperature soared to 60 ° C in this scenario, but we know that life can thrive in such harsh conditions on Earth. While the “second Earth’s” habitability remains in doubt.

But some astronomers also say it is not habitable. Due to its stars being a very active star. You read there research here.

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