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6y
Jan 2013: Theory based on new evidence - 'Gas Giant' planets like Jupiter and Saturn come into being by absorbing the debris from young stars into their expanding mass.
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Humility: Andromeda’s actual size, not accounting for the fact it is 2.5 BILLION LIGHT YEARS away, compared with the moon's 238,000 MILES away. It contains a Trillion stars, while our galaxy contains at most a half a billion stars...absolutely amazing
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#Astronomy: The lifecycle of a #Star.
On life and time.
I don't believe the universe is billions of years old, but these facts and images are incredible.