NASA is the National Aeronautics and Space Administration of the United States, similar to our country’s China Space Administration.
According to NASA data, there is currently a large asteroid with a diameter between 18-40 meters and a speed of 5 kilometers per second. It will arrive near the Earth on March 22. This large asteroid is named EA2 . Because it was so close, NASA labeled it a potentially hazardous asteroid and issued a warning.
However, it is worth mentioning that the earth can be said to be the safest planet in the solar system. Most of the earth’s unexpected encounters with asteroids every year are near misses, so we need to be vigilant, but we don’t have to. Too much panic. According to NASA observations, there will be no known large asteroid hitting the Earth in the next 100 years. Therefore, for at least a century, everyone will no longer have to worry too much about asteroids passing by the earth.
I think this is credible. If satellites from other countries find out that this is fake, then where will the face of the United States as a powerful aviation country be?
NASA is an agency of the U.S. federal government responsible for formulating and implementing civilian space programs and conducting aeronautical scientific research. It was founded in 1958. It is responsible for U.S. space exploration and space shuttle development, such as the Apollo program for moon landings, Skylab, etc. The space agency is considered the most authoritative space agency on Earth and shares its research data with many domestic and international scientific research institutions. ?
In fact, NASA is not limited to the aerospace field, it is a true scientific research institution.
From the spray dust collectors used in daily life to vacuum compression bags, memory foam mattresses, etc., they are all classic works of NASA. Below are several patents invented by NASA.
Nanotechnology hair products, purification of contaminated groundwater, 3D printing in space, arrow-powered parachutes, etc.
We should clearly realize that we still have a long way to go before becoming a technological power. There is still a long way to go on the road of scientific research.