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Successfully de-orphaned! Wikiproject Orphanage: You can help! Dagrrl ( talk) 21:28, 10 September 2010 (UTC) reply

Why does the first paragraph mention NASA? It has no citation and seems purely speculative. As it is written now, the article seems to be more about a speculative/fictional device than about some proposed NASA device. Avl ( talk) 11:45, 24 July 2021 (UTC) reply

The section use by astronauts has no purpose. The second claim is irrelevant, but the statement that they have currently not been used may be moved into the introduction. 184.19.96.157 ( talk) 13:52, 1 September 2021 (UTC) reply