In the vast universe, there are a variety of innumerable celestial bodies, each of which has its own operating rules. For example, the eight planets in the solar system revolve around the sun.
In addition to the eight planets in the solar system, there are many other celestial bodies. These celestial bodies will first go through a period of confusion, and then gradually form regular motion models.
However, no matter how regular these celestial bodies are, once their mass is reduced to a certain extent, they will be affected by the gravity of other celestial bodies, thus changing their original motion trajectory, and rushing into other celestial bodies and hitting them uncontrollably in the universe.
As we all know, since the birth of the earth, asteroids have hit the earth several times. These asteroids are different in size, shape and energy, leaving traces and disasters in many places on the earth.
One of the most familiar events should be the extinction of dinosaurs. Because of this asteroid impact, a blessing in disguise. Although dinosaurs were extinct, human beings were born, and the intelligent civilization of the earth began to appear.
Since asteroids can destroy dinosaurs, will humans be destroyed?
Recently, scientists have discovered that a giant planet named 1998 or2 will approach the earth when observing the universe. It is known as “time bomb” and has potential danger.
The asteroid looks like it’s 20000 miles in diameter, and it’s not very friendly to the earth with a speed of about 4 kilometers per hour.
Fortunately, scientists predict that when it approaches Earth on April 29, it will pass at a very safe distance of 6 million kilometers. Did you see today’s date? Did you relax in a moment!
Because NASA’s Center for near Earth Research stipulated that asteroids within 7.4 million kilometers of the earth would be automatically marked as potentially dangerous, 1998 or2 was initially considered unsafe.
Eddie irizarry, a NASA scientist, wrote for earthsky:
Astronomers can gaze at 1998 or2 through telescopes because it will be a slow-moving “planet”.
Observers with at least six or eight inch telescopes will see asteroids moving very slowly in front of the star.
Eddie irizli also provided more detailed techniques for discovering the space rock.
If people don’t have enough telescopes to observe, the virtual Telescope Project in Rome will provide us with live broadcast.
At present, the virtual Telescope project team has determined the scope of 1998 or2 asteroid and captured its image.
Scientists also predict that the 1998 or2 asteroid will pass the earth again in 2079, which will be closer than this year. In 2079, the earth will be tested again.
Xiao Bian believes that although it is common for the earth to be hit, people should not worry too much and be optimistic.
Because even if there is a real impact, there is still a thick atmosphere on the earth. When celestial bodies in the universe hit the earth, they have to pass through the atmosphere first.
However, at the same time of contacting the atmosphere, because of the friction, the meteorite will first burn violently in the air, and the volume after burning will become smaller, or even disappear directly.
What do you think of that? Welcome to leave a message in the comments area.