(1)Potential accidents aspect Firstly, space travelers will concern that public reactions to potential accidents aspect during they are catching spacecrafts to travel to space. In fact, it is moral ethic responsibility to any space tourism leisure providers to provide safe, comfortable and non accident occurrence in their whole space trip. Because once time accident will cause any one of space passenger hurt or death. So, it must be any space tourism businessmen responsibilities to concern whether they have enough confidence to ensure none any accident occurrences in every space tourism trip.Hence, in space tourism industry, government needs have public policy to threaten or prohibit any space tourism leisure providers neglect to often check and ensure any spacecraft machines or equipments are regular opeations, as well as often renew new spacecraft machines when they are old to be used. The policy is a force effort to need them to abide every space tourism leisure safe responsibility to ensure or guarantee any one of spacecraft won't have accident occurrences during it has left earth to fly to space in whole space trip journey from the beginning to the end till to the spacecraft come to earth safely.Hence, this policy forces any space tourism leisure providers concern to put a monetary value on increased or reduced risk of death, the " value of statistical live," used to characterize when the benefit of safety regulation is worth the cost such regulation improves. So, the country government and the country's space tourism leisure providers both have responsibilities to guarantee all space tourism passengers' life safety. It must not allow any death or hurt occurrences during every space tourism trip.Even, the country government can have legal action to publish any space tourism leisure providers, when their every space tourism trip has occurred accidents, e.g. fire accident occurrence in spacecarft or spacecrat machines are broken to be damaged and need to be repaired during the space tourism trip. It will threaten to reduce trip accident occurrence, such as this cases. The commercial space ventures may present risk to property as well, such as a fire starting on the ground by launch-related material or problems presented by space debris.In principle, liability law can provide incentive to deter carelessness that could lead to the destruction of property, although statutory ( rather than common law) assignments of liability for commercial launches are somewhat problematic.Consequently, if the space tourism leisure provider expected to grow space tourism passenger number in long -term time, it must need to ensure none any accidents can occur during any space trip. Otherwise, the space tourism passengers can choose another space tourism leisure provider to replace its spce tourism leisure easily.