In the absence of intervening matter and the resultant effects of friction, things in space are free to propagate without much interference.
The result is often massive and marvelously beautiful structures which may originate from a single point.
This diagram traces the hourglass structure formed by a pair of huge, bipolar gas bubbles ejected by a double star in the center of the Southern Crab Nebula.
Wow 👍
So stunning, bubbles ejected by a double star in the center of the Southern Crab Nebula is beautiful natural occurrence!
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awesome!