随着载人飞行器（卫星、飞船、航天飞机、空间站）的出现，空间生命科学应运而生。人类的活动范围也在不断扩大，随之而来的是要解决宇航员的食品问题。近年来，航天大国已在空间站上进行了生物学试验，先后培育出百余种太空植物，包括番茄、萝卜、甜菜、甘蓝、莴苣、生菜... With the advent of manned spacecraft (satellites, spacecraft, space shuttle, space station), space life science came into being. The scope of human activities is also expanding, with the consequent solution to the astronauts’ food problems. In recent years, the great aerospace spacecraft has carried out biological experiments on the space station, and has cultivated more than 100 kinds of space plants, including tomatoes, radishes, beets, cabbage, lettuce and lettuce.