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About 100 to 150 metric tons (110 to 165 tons) of space junk re enters Earth atmosphere each year, according to Heiner Klinkrad, the head of ESA Space Debris Office. In 56 years of spaceflight, a total of 15,000 metric tons (16,500 tons) of human made space objects have re entered the atmosphere.
The 1,100 kilogram (2,425 pound) satellite disintegrated in the atmosphere but about 25 per cent of it about 275 kilograms (600 pounds) of junk slammed into the Atlantic between Antarctica and South America, a few hundred kilometres (miles) from the Falkland Islands, ESA said. It caused no known damage.
the last three weeks after running out of fuel Oct. 21.
but what about all the rest up there
But how much space junk is out there? Here a look:
that of a Formula One racing car between 200 kph to 300 Nike Dunks Pigeon
There have been no known human injuries or significant property damage caused by space junk, according to ESA. Unlike meteorites, which hurl into the Earth as solid chunks travelling about three times faster, space junk typically falls as fragments and is distributed over a fallout zone up to 1,000 kilometres (600 miles) long. Krag says fragments from a satellite came down in 2011 over the Netherlands, Germany and the Czech Republic but no pieces were ever found.
Some 6,600 satellites have been launched. Some 3,600 remain in space but only about 1,000 are still operational, according Nike Blazer Vintage Womens to ESA. Space Surveillance Network tracks some 23,000 space objects, ESA said. A lot of junk comes down unnoticed, said ESA Space Debris Office deputy head Holger Krag. Statistically, he said, every week you have a re entry like GOCE. WHEN IT STARTS TO FALL
When systems are still functioning, spacecraft can be manoeuvred to try and direct them to land in areas where there would be minimal impact, like into an ocean. In the case of uncontrolled re entries, scientists are able to predict where the impact will be but that can be a very wide swath. The GOCE satellite systems kept on working much longer than expected, providing data that Krag said will be invaluable in helping scientists figure out prediction models for future space junk descents.
SPACE JUNK FLYING AROUND THE COSMOS
FILE This is a 1979 file image of Skylab, at the end of its mission in 1979 when it crashed back to Earth. Skylab was the first United States manned space station, and was launched on May 14, 1973. NASA Skylab was one of the best known of a falling satellite, which re entered in 1979. About 74 metric tons (82 tons) hit the Earth some of it in Australia and the rest falling into the Indian Ocea (AP Photo/NASA, FILE)
The European Space Agency says one of its research satellites re entered the Earth atmosphere early Monday on an orbit that passed over Siberia, the western Pacific Ocean, the eastern Indian Ocean and Antarctica.
Space junk mostly satellites and rocket stages or fragments typically travels at about 28,000 km/h (17,400 mph) shortly before re entry at about 120 kilometres (75 miles) above the earth, according to ESA. It starts to slow down and heat up in the dense atmosphere. In the last 10 minutes, it hits a travelling speed roughly equal to Basketball Shoes Nike Zoom
One of the best known cases is NASA Skylab space station, which re entered in 1979. About 74 metric tons (82 tons) hit the Earth some of it in Australia and the rest falling into the Indian Ocean. Fragments of Russia Mir space station weighing about 135 metric tons (149 tons) came down in 2001 in a controlled dive into the Pacific Ocean. More recently, in 2011, NASA UARS satellite crashed into the Pacific and Germany ROSAT satellite landed in the Bay of Bengal. None caused any damage.
The satellite called the GOCE, for Gravity field and Ocean Circulation Explorer was launched in 2009 to map the Earth gravitational field. The information is being used to understand ocean circulation, sea levels, ice dynamics and the Earth interior. The satellite had been gradually descending in orbit over Nike Air Mag 2017 Cheap
kph (125 mph to 190 mph).
MOST FAMOUS SPACE JUNK CRASHES
About 74 metric tons 82 tons hit the Earth some of it in Australia and the rest falling into the Indian Ocea AP Photo/NASA, FILE
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