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Approximately, what is the average age of a star from when it is formed to when it dies? how and why do the ages change?
when stars are born, what sorts of gases do protostars/nebulas contain?
hello alan, I was wondering what made you so interested in astronomy and large telescopes?
hey there alan, ive been pondering over this thought for a while now, what was it like to see that rocky mass in space?
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