There are only 45 million kilometers left, what caused the spacecraft to stop its engine?

The reason for the ship's engine shutdown was human, not because of some malfunction or anything. Because in space, the spacecraft can fly even if the engine is stopped, and the purpose of stopping the engine is only to save energy.

Event grooming. Japan's man-made spaceship Hayabusa2. It is a spaceship for outer space exploration, and this outer space exploration ship contains minerals rich in cosmic planets. It will bring back abundant outer space material to Earth.

The spacecraft is currently on its way back, with only 45 million kilometers left on Earth. **In December of this year, the spacecraft was able to return safely to Earth.

Judging by the information displayed on the Internet. August 12, 2002 Shenniao 2. With only 100 days left before Earth navigation time, the ion engines stopped working and began to check the overall performance of the spacecraft in preparation for its entry into Earth orbit in November. <>

How does the ship fly after it stops its engines? How does Hayabusa2 fly in outer space with its engines turned off, and can the spacecraft still fly in outer space after the engines are turned off? The answer is yes, outer space is different from Earth.

From the point of view of physics, in the process of moving the earth's objects, they are guided by a variety of forces, such as the earth's gravity, ground friction, air resistance, etc., so if the objects on the earth want to move, they need to rely on external forces to continue to operate.

In simple terms. You put a soccer ball on the ground, and if the soccer ball is stationary without any external force, if you kick it at that point, the soccer ball will roll forward.

But in outer space, it's a different story. In outer space, there is no resistance or force other than the gravitational pull of the planet itself. Under the guidance of gravity, the spacecraft can move forward at an even speed, so even if the ship stops its engine, it can still fly.

Caused by human causes, due to a calculation error in the design of the Japanese spacecraft, the spacecraft engine did not have enough energy to maintain the operation.

Stopping the engine is a man-made reason, and even if the engine is stopped in space, the spaceship can fly, and the engine is stopped to save energy.

Aircraft engine stops are man-made. Because in space, even the engine of the spaceship is stopped. Spaceships can also fly. The purpose of stopping the engine is simply to save energy.

Lack of power. This is because when calculating engine power, there may be calculation errors, resulting in the early end of the engine life.

At present, the relevant technical departments in Japan are studying countermeasures for this matter, because the spacecraft is still moving, but there is no power.

The Japanese spacecraft is currently moving forward at an average speed in space with the engine stopped. In other words, he is currently on his way back.

This is because the space environment is different from the ground environment, and the ground objects are subjected to resistance, friction, and the earth's gravity during the movement, so they need to use force to continue to operate during the movement. There is no force in outer space but gravity.