There are lots of Astronomers,who have great contribution to explore Space,starts with Hipparchus to Albert Einsteine. They studies the objects in the sky,including planets, galaxies, black holes, and Stars.
Hello I am Ajit from Kolkata,the writer of this Biographical Blog. Here you can find all biography pdf in every fields… It covers almost every country’s great personality… You can download also from here… This website is education purpose…Here you can find great personalities from various fields, like artist entrepreneours, leaders, poets, politicians, philantropists, scientists, saints,singers,socialist etc etc etc…
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