If the spacecraft, after running out of maneuvering fuel, should crash into Europa, it might contaminate that moon with stowaway microbes from Earth and confound future searchers for indigenous life.

• 如果它用完燃料后坠落在木卫二上，它可能会因从地球携带的微生物污染这个星球，并会混淆以后关于这个卫星上的本土生命的研究。