New evidence shows that all stars are born in pairsA new research done by the theoretical physicist from UC Berkeley and a radio astronomer from the Smithsonian Astrophysical Observatory at Harvard University shows that all stars in the universe are born in pairs. They have also claimed that our sun, a huge star also has a twin called as ‘Nemesis’. It is dwarf star guilty of throwing objects towards the Earth.

Scientist even claimed that sun’s twin sibling had thrown an asteroid into the Earth’s orbit that collided with our planet and killed the dinosaurs and never been found till date. But now scientists are in search of that sibling star ‘Nemesis’ after predicting the recently formed stars in the constellation Perseus. Researchers say there are certain stars that are born in conjunction with their sibling.

Some of the stars have a triplet system like Alpha Centauri. Some binary stars split to form the triplet stars. Steven Stahler, one of the study scientist and UC Berkeley research astronomer said, “We are saying, yes, there probably was a Nemesis, a long time ago.” “We ran a series of statistical models to see if we could account for the relative populations of young single stars and binaries of all separations in the Perseus molecular cloud, and the only model that could replicate the data was one in which all stars form initially as wide binaries. These systems then either shrink or break apart within a million years”, he further added.

Scientists developed the mathematical model that finds the observations of stars in Perseus. This is possible only when all of the stars were born with a companion.  The distance between the two stars is calculated by 1 astronomical unit or AU. It’s also the average distance between the sun and the Earth. The two stars are separated by more than 500 astronomical units.

The twin star of the sun would be 17 times farther from the sun than its most distant planet, Neptune. It is known that sun’s sibling might have escaped and mixed with all the other stars in the Milky Way galaxy and never to be seen again.

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