When we heard the "Death Star" think of the space station of the Star Wars movie series designed by Darth Sidious and capable of destroying small planets, space stations, cities or enemy fleets.That is, it was conceived as a war weapon of annihilation.Translating this idea to the real sphere, some scientists have launched the hypothesis of the existence of Nemesis, the Star of Death that would bring extinction to Earth and be a real star .Join us to know this interesting and terrifying theory.
Nemesis, the Death Star and the extinction hypothesis
The hypothesis from which these scientists start is that the sun has a companion at a distance of 1.5 light years.This star would have an ellipse-shaped orbit and every 26 million years Approximately when approaching our planet would send matter and would cause a series of phenomena that would lead the Earth to mass extinction.This hypothesis was formulated because evidence was found in the geological record that such events apparently they would have happened regularly.The star causing these mass extinctions has been dubbed Nemesis or Death Star .

The hypothesis was initially launched in 1984.Paleontologists David Raup and Jack Sepkoski claimed to have found evidence over 250 million years that every 26 million years there was an event of mass extinction due to impacts .United this theory to the of several astronomers who in the same decade ventured the existence of a companion star of So l, which has not yet been detected, in an elliptical orbit, and that periodically affects the comets of the "Oort Cloud" causing them to enter the internal Solar System impacting the planets, including Earth This star would be a red dwarf or brown dwarf and the scientists called it Nemesis or Death Star .
In 2010 AL Melott and RK Bambach found evidence in fossil records that there had been extinction events for 500 million years, but that the period between them had been 27 million years, but other astronomical studies could not detect that there was a star additional or dwarf in the Solar System.

Among the latest studies on the subject of Death Star or Nemesis, is that of NASA scientist David Morrison, who worked for years to assess the risks posed by objects that approach Earth.This scientist said that there is no real evidence that Nemesis exists and that with current sky study systems it should have already been detected.
Astronomer Richard A.Muller believes that the last mass extinction due to the effect of the Death Star, there was 11 million years ago .According to his calculations there are still 16 million years left before an event of these characteristics can occur again, therefore, for now, we should not worry Despite this, it is an interesting hypothesis to explain the extinctions detected by geologists.
What do you think about this hypothesis? Do you think it may be true? If you were interested in this post, you might want to read:
-If we survived, what would happen to humans after the impact of a meteorite?
Image: Anynobody
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