What are the ten most memorable space junk that fell from the sky to the ground announced by the American Space Network?

In space, there are about 654.38+0.7 billion useless rockets, abandoned or dying satellites and countless artificial orbit fragments scattered among them. It is estimated that an object enters the earth's atmosphere every day on average. The following are the top ten most memorable "man-made garbage" released by the American Space Network.

1. Skylab debris

The first and only space station in the United States, Skylab, was launched into orbit in May 1973, and the life of this big guy weighing about 77 tons (70,000 kilograms) came to an end in July 1 1. At that time, the Sky Laboratory fell vertically into the earth's atmosphere, and unburned large pieces of debris rained down from the southeastern Indian Ocean to the desert area in western Australia.

2. Space station "Peace" debris

In the world of space junk, Russia's "Peace" space station is undoubtedly a "heavyweight champion" that the younger generation cannot catch up with. At that time, peace was heavier than all objects orbiting the earth-except the moon. After 15 years of hard struggle in space, the Russian space station began to embark on a suicide journey on March 23, 2006. When it returned to the earth's atmosphere over the Pacific Ocean, astronomy enthusiasts and journalists gathered in Fiji rushed to watch this scene. Although most of the space station burned in the atmosphere, there were still 1500 pieces of debris falling to the ground. Tourists from Nadi Beach in Fiji picked up their cameras and recorded this rare artificial meteor shower. It is reported that the huge debris also triggered a sonic boom.

3. Debris from the templeton Gamma-ray Space Telescope

After the Compton Gamma-ray Space Telescope completed its orbit around the Earth of 565,438+0,658, NASA decided to de-orbit it on June 4, 2000 due to the gyro failure. When the Compton gamma-ray space telescope passes through the earth's atmosphere, its solar panels and antennas are considered to be the first to melt, and other parts may follow in the hot gas furnace. Nevertheless, telescope fragments weighing about13,227 pounds (6,000 kilograms) still fell into the Pacific Ocean in southeastern Hawaii.

4. Space shuttle Columbia debris

On February 1 2003, NASA's space shuttle Columbia broke up in the earth's atmosphere on its way back to the ground, killing all seven astronauts on board. The catastrophic accident caused the Columbia to disintegrate into thousands of pieces, scattered over 28,000 square miles (72,520 square kilometers) in Fiona Fang, eastern Texas and western Louisiana. In the subsequent search and rescue operation, the US military found more than 80,000 pieces of debris and kept them for future investigation.

5. Abandoned spacecraft parts and components

1966 in may, spacecraft debris was found in Rionegro, Brazil. These metal parts were later confirmed to come from Saturn rockets in the development and testing stage. The rocket was launched on 1964 and returned to the earth's atmosphere on April 30, 1966. These space debris include a light metal fragment, an oval large metal fragment, a black honeycomb structure and four fragile iron wires.

6. Delta 2 rocket fragments

200 1, 1, 2 1, the third stage of Delta 2 rocket (also known as Delta PAM-D, or payload booster module -D) enters the atmosphere over the Middle East. Its titanium engine casing weighing about 154 lb (70 kg) fell in Saudi Arabia, a titanium booster barrel fell on the ground near Segin, Texas, and the main propellant tank fell near Georgetown, Texas.

Delta 2 rocket

7. Cosmos 954 satellite

Cosmos 954, a former Soviet naval satellite, was launched on September 1977 and was out of control due to a malfunction. Every radar antenna of this satellite is equipped with a nuclear reactor, which makes people on the ground face serious life threats. 1978 65438+1On October 24th, Cosmos 954 returned to the earth's atmosphere over Canada, and its debris fell on the frozen soil in the Canadian Arctic. After the accident, the United States and Canada carried out a joint mission over the area and carried out corresponding nuclear material removal operations.

8. Gemini astronauts' buckets

In the 1960s, several mysterious spheres were discovered in Australia, and some people speculated that these spheres were related to UFO phenomenon. Locals in Mokanuka, Western Australia, found such a titanium sphere, and this metal sphere was named "Mokanuka Ball". Later, it was confirmed by experts that it was originally a bucket used by astronauts on Gemini VI spacecraft to drink water. Gemini VI was launched on August 2 1, 1965, and returned to the earth's atmosphere on August 29 of the same year, and then fell into the Atlantic Ocean.

9. Delta 2 rocket fragments hit American women

1997 65438+ 10, a woman in Oklahoma, USA, was suddenly hit on the head when she went out: a charred fabric material hit her right on the head. Fortunately, she was not hurt. It was confirmed by experts that the debris falling in the sky was the debris of the Delta 2 rocket and returned to the earth's atmosphere on June 22, 1997+65438. Other fragments of the rocket include a titanium propellant tank and a titanium pressure ball.

10. USA-193 spy satellite fragments

On February 20th, 2008, the US Navy intercepted the out-of-control spy satellite USA- 193 with missiles. According to some astronomy enthusiasts, the wreckage of this destroyed satellite has landed in the northwestern United States and Canada. US Department of Defense officials said that none of the debris they found was bigger than a football.

skylab