Chang 'e IV completed the first lunar biological experiment. What other experiments have been done outside the earth?

Chang 'e-4' s space journey has long been the focus of media discussion at home and abroad, because it is the first time that human beings have explored the back of the moon. The cotton seeds carried in Chang 'e-4' s experiment successfully germinated after 9 days, becoming the first plant to germinate on the surface of the moon, which will also make it a talk for a long time.

To be fair, this experiment can only be regarded as a partial success. Despite the false name of "the first time", Chang 'e IV actually carried six kinds of creatures, including cotton, rape, potato, Arabidopsis, yeast and fruit fly. These six organisms can form a small ecological circle, and only cotton seeds germinate successfully. Nine days later, the moonlit period came and the test load was successfully cut off.

But even so, we can't deny the significance of space experiment. As Armstrong, the first man who set foot on the moon, said, "This is a small step for him personally, but a big step for mankind." Human exploration of space is essentially our curiosity about the unknown. We are constantly doing experiments in space that seem almost meaningless on earth. It is just one small step after another for us to explore the vast universe.

There are many similar experiments. 1957, the former Soviet Union first conceived to put a dog named Lycra into space. Unfortunately, the Soviet Union did not have the ability to recycle satellites at that time. Due to the high pressure and high temperature of the capsule, Lycra died after flying for 5 to 7 hours.

196 1 year, an American gorilla named Ham successfully entered space orbit, but fortunately returned to Earth safely without any special symptoms. Ham was taken good care of and finally died peacefully in the zoo.

Every almost clumsy exploration of mankind is to get closer to this mysterious universe one day. That day may be far away, but our exploration will never stop.