NASA sent mice into space, results released

NASA has sent mice to dozens of space missions since 2014, a special habitat designed for microgravity.

In their own way, rodent astronauts are contributing to mankind's attempt to explore Mars.

Before NASA sends people on the long journey to the red planet, she first wants to discover the effects of staying on microgravity.

Scientist Scott Kelly spent a year in space to see what would happen to his body.

His bones weakened, his muscles atrophied you, your genes changed, and part of his eyeballs went to Thursday in ways that scientists still cannot fully explain.

And now NASA released his report on a group of mice that spent 37 days in space.

The agency said it's a long-term mission based on the rodent's life expectancy rate.

Scientists studied a video of animal behavior to see how they adapted to the lack of weight.

At first, rodents seemed confused and hesitant. Then they soon began walking and finding their destinations as they began eating themselves.

Rats even developed a new behavior that scientists called “the pursuit of the” race. The mice ran to zero-gravity around their habitat as if it were a wheel of rodents.

Scientists are not sure why rats did this. The main theory is that they did it for fun.

“Sella represents body biology. It informs us of general health and brain function,” said April Ronca, NASA researcher, sends the clock.

At the end of their mission, rats returned to Earth in good condition. They weighed as much as a bunch of rats on Earth and their bodies were in excellent condition according to NASA.