Why are human brains the biggest? We would like to inform you that human brains are not the biggest compared to other animals.
According to astronomers dwarf galaxy a satellite of the Milky Way, Segue 1, retained the title of “Center of darkness” of the Universe,the largest known concentrations of the mysterious dark matter. Astronomers measured the velocity of the stars relative to the Milky Way and each other. According to astronomers, but if a thousand visible stars, Segue 1 is not in it or anything it would be only a small amount of dark matter, all the stars would move relative to the Milky Way about the same rate, equal to 209 km per second. In fact, the speed of stars in the galaxy varies from 194 to 224 kilometers per second. It means that Segue 1 must contain much more mass to accelerate the stars to such speeds.
In the dark galaxy was unexpectedly large primitive stars with very low content of chemical elements heavier than helium. Scientists collected data on the iron content in the seven stars of Segue 1 and found that three of them it is 2.5 thousand times lower than the Sun.This means that in front of us one of the oldest and most “primitive” stars in the history of astronomy. Scientists expect that the cosmic gamma-ray telescope Fermi can detect gamma radiation produced by the annihilation of dark matter particles, and thus finally consolidate “dark” status of Segue 1.
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