According to Space Beijing report on July 19th, an experiment that the astronauts are conducting on the International Space Station may electrify future space exploration missions. The protagonist of this experiment is a group of Shewanella-was sent to the International Space Station in early July. On the earth, Shewanella has an unusual ability: it can generate electricity. This experiment is the first step to determine whether they can generate electricity in space and whether humans can use them to make future space exploration easier.
Shewanella one day will electrify space flight
Shewanella belongs to the power-generating bacteria group-they can generate electricity by themselves. The reason they can generate electricity is that they can transfer electrons from the body to the tiny appendages around them.
In theory, bacteria like Shewanella can not only generate electricity, but also help astronauts purify water-these two uses help to reduce the materials carried by the spacecraft during space flight.
However, before scientists place all their hopes in these micro-power plants, they must prove that Shewanella can survive and reproduce in space, which is why the astronauts conducted this experiment on the International Space Station. What worries scientists in particular is that Shewanella must form a thin film — close to each other to form a thin sheet — to generate electricity, a process that may not be completed in space.
Once these bacteria return to Earth, the project scientists will investigate whether they are affected by the microgravity environment. If they are not adversely affected by the microgravity environment, this will be a stunning advancement in space technology.
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