According to Einstein’s theory of relativity – the Universe has arisen from a certain point with a very high density and an infinite amount of energy – the Big Bang. There are other theories, but at the moment there is no way to test any of them. Astrophysicists believe that the universe is the same […]
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May 21 is celebrated all over the world – International Space Day! (photo)
May 21, 2020 
Oleg Artemyev 
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April 22nd. Video lesson at the Golden Section School (rus)
April 25, 2020 Oleg Artemyev 
Sorry, this entry is only available in Русский.
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