A study by scientists at the University of Chicago has discovered four new planets, they are small planets, rocky planets and they are orbiting the second closest star system to us, it is Barnard Star.
This discovery of four rocky planets orbiting the second closest star system to us, the four planets each have a mass of only between 20 and 30% of that of the Earth, they are smaller than the Earth, but they are larger than Mars, but they are smaller even than Venus, it would be something in between Venus and Mars.
The main problem they have is that they are very close to their star, they orbit it in a matter of days, this possibly means that they are too hot, they receive too much heat from their star to be habitable, but the discovery marks a new milestone in the discovery of smaller planets around stars close to us, something that is being studied and especially focused on right now by astronomers, analyzing in detail the nearby stars to find out if there are planets in them and what they are like.
This study has also ruled out the existence of planets in the habitable zone of Barnard Star, which is a bit strange because we have four planets in a very short distance, they are very close together orbiting their star and then we have a void, beyond the habitable zone there could be a planet, perhaps, but we have not discovered it yet; The problem is that in the habitable zone, for example, there would be no planet, but how to explain that gap if other planets exist later or how to explain that there are four and they are so close together is something very curious.
This also tells us that there are many schemes of planetary systems, that ours is just another one and it is not exactly one of those that has more planets. There may be stars with many more planets. It is a problem that most of the planets that orbit red dwarfs are too close to their star. charred
The other problem they have is that being so close they are trapped by tidal forces, so they always have an illuminated hemisphere, one hemisphere always facing the star and another in total darkness is what happens to the moon, what happens is that the moon is not orbiting a star it is orbiting the earth, what happens, in the case of next centauri there were some optimists who say that the side that looks at the star will be charred, but the side that does not look at the star may be saved and be more adapted, may have some possibility.
Maybe there are more planets, at the moment we have found one and where there is one there are surely more, another thing is that we have the technological capacity to discover those more planets that may exist around that star, there may be stars in stable red lullabies, yes there are also because almost all of them are unstable because almost all of them are very young, they are extremely young.
Red dwarfs can live much longer than the sun, if the sun can normally live between 10,000 to 12,000 million years, a red dwarf can exist for 200,000 million years, the fact is that no red dwarf has died yet the universe is not old enough to have seen a red dwarf age, all of them are quite young, even so, there are some that are quite stable.
What would a planet orbiting a red dwarf in the habitable zone be like? A stable red dwarf in the habitable zone could have a quite complex climate. In one area it would have a scorching climate and in the other it would have a frigid polar climate. It is believed that the intermediate zone between the two hemispheres, the one that is always illuminated and the one that is always in darkness, could be an area suitable for life to exist. They are strange worlds, but the most curious thing is that these types of stars are the most numerous in the universe, therefore they are also those that may have more planets and therefore also those that have more options for life to have emerged on one of them.
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