⦁behavioral economist explains factors influence space and earth tourist lesiure psychologyWhy does the tourist feels travel to space or travel to earth anywhere in behavioral economist view, what factors may influence the tourist has interest to travel either in earth or space? What factors may influence the tourist to forgive to travel in earth or space? I shall attempt to apply behavioral economist's view to explain as below: In fact, one tourist plans to travel to space, the factors may persuade him/her to buy one time space shop ticket, they may include: finding the another kind travel lesiure feeling in space, enjoying to catch the space shop, attempting new travelling experience, earth travel can nor satisfy his need, hoping to live space hotel, walking on space garden, feeling none weightless. But this factors may influence he forgive to travel space, e.g. ticket price is high, feeling body sickness, fearing space accidents may occurs any time or feeling the space tourism service provider's space ship leisure facilities are not attractive etc. different factors to influence the potential space tourist either chooses another space trip service provider or forgive this time space tourism plan.Hence, ticket price and psychological factors may influence any one space torust's space desicion suddenly. However, he/she must compare whether which space tourism provider can provide the best space ship trip i norder to choose . So, he/she will spends one month or half year or more time to gather any space service providers' information in order to make when he will travel to space.Anyway, one tourist plans to travel in earth, the factors may persuade him/her to buy air ticket. They will have significant difference to compare space trip, such as space trip ticket price must cheaper than earth tourism, because space trip must be expensive, so ticket price on earth trip can not the main factor to influence any tourist decision to compare space trip more easily. However, sickenss factor may influence tourists feel fear to catch airplan, e.g. nowadays, COVID, new human mounth disease, it can bring disease from air. All this kind disease may influence many tourists feel fear to catch air plan to travel. Hence, disease sickness may be one important external environment factor to influence global tourists number to be reduce. Another factor may be climate change to influence tourists to choose to travel which country. Also any one travel service provider's trip leisure arrangement whether it is attractive, it can influence the tourist chooses this travel agent or another travel agent 's travel leisure package service.Thus, behavioral economist's view, it explains although, space torism and earth tourisn is tourism industry. But, which is the main factor to influence space or earth lesiure tourism choice among tourism service provicers. They are ver different.For example, spae tourism ticket price must be much expensive to compare earth travel tcket price. So, any one spae tourist's spce tourism number mist be less, it may only one time as well as space tourist must compare whether which space tourism service provider's ticket price is low and space trips can be more attractive in order to make the final space tourism choice. Otherwise, space tourism price must be very low. So, eath tourist won't consider whether which travel agent's travel price either is such expensive or cheap, they will consider whether which can provide fun and enjoyable and satisfies trips. So, attractive trip may be one important factor to influence any one tourist to make final tourism decision to which travel agent. Hence, we can apply economic and psychological method to learn how and why space and earth tourist individual travel leisure need has different.