Astronomers from Poland have discovered the smallest free exoplanet - it is not associated with any star.This is
Scientists from the University of Warsaw presented immediatelyseveral candidates for free floating planets. Now one of the candidates has been confirmed - the researchers named it OGLE-2016-BLG-1928. Experts note that there is no star around it, but perhaps it simply does not exist within a radius of eight astronomical units, the space for observation. The authors of the work note that the microlensing method is very sensitive, it is able to detect the effect of a lens with a duration of only 45 minutes.
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Earlier, scientists from the UK presenteda report in which it was suggested that there are a lot of planets of this type in the Milky Way - possibly several times more than stars. Experts note that every 25 million years they cross the solar system, accumulating dust microparticles and germs of life and carrying material throughout the galaxy.
However, not all researchers agree with this: an analysis of the observations of the Polish OGLE experiment for 2010-2015 showed that there are no more than 0.25 free exoplanets per star.
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