United States National Aeronautics and Space AdministrationSpace FlightCapsulesAstronautsCosmic RadiationSpacecraftWeightlessnessNitrate ReductaseAlternative SplicingBacterial CapsulesCapsule EndoscopyJoint CapsuleLens Capsule, CrystallineNitratesCapsule EndoscopesInternal CapsuleComplement Pathway, AlternativeFungal CapsulesBowman CapsuleSubrenal Capsule AssayMolecular Sequence DataAnimal Testing AlternativesExonsPolysaccharides, BacterialBase SequenceCapsule OpacificationComplementary TherapiesCryptococcus neoformansPosterior Capsule of the LensAmino Acid Sequence