NASA has warned that the asteroid 2000 QW7 will fly to Earth in September.
It is reported that the size of the 2000 QW7 is between 3,000 feet and 1.5 miles, which is about 914 meters to 2414 meters. Generally, the asteroid burns 100 meters in diameter through the atmosphere. The size of the earth is about 20 cm and 10 km. ..
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