is 13.7 billion years old.
spans a diameter of over 150 billion light years.
before the BIG BANG, or (Planck Epoch), the universe was smaller than an atom!
a 2010 study by astronomers estimated that the observable cosmos contains 300 sextillion (3×1023) stars!
the current diameter of the observable cosmos is thought to be about 93 billion light years.
the first stars started developing about a million years after the BIG BANG.
the OLDEST star in the universe is HE1327-2326 and is believed to be around 13.7 billion years old!
our sun developed about 4 1/2 billion years ago.
it is believed that a supernova jump-started our solar system.
there may be an
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