Only NASA-sourced records. The ranking holds the one record with a stated pressure and oxygen level (N01); other investigations appear in the Investigations tab and Resources. Lunar and Mars base targets use NASA’s recommended 8.2 psia (56.5 kPa) and 34 % O₂; cabin and rover targets use 10.2 psia (70.3 kPa) and 26.5 % O₂ (R21). Scores follow the weights you set. The SI answers from the loaded sources first and labels general knowledge and inference, so check the sources.