Felix cats in zero gravity this real thing that happened Felix , or was it Félicette? sweet-tempered street cat from Paris Purr’n’Fur cats in zero gravity some debate Félix and Félicette, the space cats Félix, the space cat postage stamps Purr'n'Fur Félicette foi enviada para o espaço http://www.purr-n-fur.org.uk/famous/felix.html Purr 'n' Fur: Felicette and Felix, Space Cats