costings
there is a Wikipedia page on this topic.
Data is older but indicated Iodine ~$30-35 and borne out by current googling, and a cost for Krypton of ~$290/kg at the same time frame which looks more realistic to me. YMMV
So cost saving on propellant and likely big reduction in thruster weight/volume. Win/Win
All we need now is one with a charged field to ingest orbital debris and a scheme to atomise it for thrust; mk2 tracks down debris to ingest and declutters LEO
Mines the one with the psychoactive substance -->
Biting the hand that feeds IT
