The bright blue stars of the Messier 18 cluster are a young 30 million years old and all share the same ‘parent’ cloud of gas and dust.
from Space.com ift.tt/2aVsLIC
The bright blue stars of the Messier 18 cluster are a young 30 million years old and all share the same ‘parent’ cloud of gas and dust.
from Space.com ift.tt/2aVsLIC
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