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A comment on Could 'Oumuamua be an icy fractal aggregate ejected from a protoplanetary disk?. Parent comment

Re:Could 'Oumuamua be an icy fractal aggregate ejected from ... by RPLong on Tuesday February 19, 2019 @03:57PM (#19202703)
This article explains that aspect of it:

https://en.wikipedia.org/wiki/Solar_sail

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