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太空环境是十分恶劣的,人根本无法在这种环境下生存:太空中没有氧气,航天员进入太空15秒内就会丧失意识;太空没有大气压力,体内的血液和体液会像煮开的水一样“沸腾”起来,人体的皮肤、组织和器官也像吹胀的气球向外鼓胀;太空中90分钟一昼夜的温度差非常大(-100℃～+250℃);同时,还有可怕的宇宙辐射,它可以使航天员患上可怕的放射病,甚至会危及生命。此外,太空垃圾中的碎片和流星体,随时可能像炮
Space environment is very poor, people simply can not survive in this environment: there is no oxygen in space, astronauts into space will be unconscious within 15 seconds; space is not atmospheric pressure, the body’s blood and body fluids will be like boiled water Like the “boiling” up, the human body’s skin, tissues and organs also balloon outwards as bloated; space 90 minutes a day and night the temperature difference is very large (-100 ℃ ~ +250 ℃); the same time, there are terrible Cosmic radiation, which can make astronauts suffer terrible radiation sickness, can even endanger life. In addition, debris and meteoroids from space junk may resemble cannon at any time