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Space Science History

What is a Satellite ? (First Man made Satellite)

Sputnik 1
Sputnik 1 successfully launched on 4th of Oct 1057 and entered Earth's orbit and this event start the space age or you can say the space exploration which is a never ending thin as per todays knowledge of human being. The successful launch vibrate the world, giving the former Soviet Union the distinction of putting the first human-made object into space. And now a days we know that we are able to communicate very easily to a friend and family member in few seconds and all these happen due the presence of satellites into the orbits of the earth.
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First Human in Space

cosmonaut Yuri Alekseyevich Gagarin
On 12 April,1961, in the spacecraft Vostok 1, Soviet cosmonaut Yuri Alekseyevich Gagarin becomes the first human being to travel into space outside of the earth atmosphere. In the flight, the 27 year old man as test pilot and  an industrial technician also became the first man to orbit the planet, a feat accomplished by his space capsule in 89 minutes. 

Astronomy

Astronomy is the study of things present in the universe beyond the earth's atmosphere. It is a study of things like the Sun, the Moon and the Stars it also include the galaxies means the groups of stars.
There are many things presents in the universe which we can not see like dark energy and dark matter and the most hot topic today the black hole so the Astronomy also include these things.




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