In my opinion, one of the most interesting works that Nasa has done in the past week was founding a blue snowball from across the universe.
Nasa spot a blue snowball from across the universe. They have called it Caldwell 22, it is located about 2,500 light-years from earth. It represents a stage in evolution that stars like our Sun undergoes when they run out of fuel. Massive stars have fiery fates, exploding as supernovae, but medium mass stars like the Sun swell to become red giants as they exhaust their fuel. This is a very interesting fact due to that this might be a new Sun staring its creation. Which could come with the possible theory of aliens, although this process is a very long one and at the end of the day they are just speculations.
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