Scientists said that the National Aviation and Space Administration (NASA) detecting the "Merchant" of the spacecraft should fall into the surface of Mercury and end the four -year research task of this planet.The messenger fuel has been used, and it can no longer move, and because of the gravity of the sun, it is getting closer to the surface of Mercury.

The flight controller of Johnhopkinsuniversity Applied Physics Laboratory (Johnhopkinsuniversity Apply Physics Laboratory) said earlier stated that the signal number was flying at a speed of 14,000 kilometers.The ground near the Arctic ended for nearly 11 years.

The full name of the messenger number launched in 2004 is "Mercury surface, space environment, geological chemistry and measurement tasks". It is the only Mercury detector launched by the General Administration of Space in the past 40 years.A total of more than 4100 around and shooting about 270,000 pictures.

The official Twitter recently posted a message: "Do you know? My last blow will hit a large potholes of about 16 meters in diameter of 3.91 kilometers per second."

Because the Local Slugs hit Mercury's place on the side of the earth, it is impossible to observe the process from the earth.Ground control staff said that it takes about 30 minutes to confirm whether the signal number has fallen off.