In the vast universe, the earth can be said to exist like dust. When Voyager One, the furthest from the earth, looked back at our earth, it was nothing but a light blue dot on the background of a huge starry sky. However, on this humble little point, life was born, making our earth a smart planet, shining the glory of wisdom in the boundless universe!
The birth of life is a long-term process. According to the journey of life on our planet, it takes hundreds of millions or even billions of years to develop from a single cell to a complex life body. If there is no stable cosmic environment in this long time, it will be difficult to form life smoothly, let alone intelligent life.
The impact of asteroids on the planet is the deadliest. A severe impact will often wipe out all life on a planet and let the evolution of life begin again. Since the birth of the earth 4.5 billion years ago, Jupiter, the elder brother, has resisted the impact of most asteroids inside and outside the solar system for the earth, and the moon is inside. Withstand the impact of countless asteroids! With the help of so many planets, the earth finally stood out, gave birth to life, and gave birth to humans!
However, there are too many stray celestial bodies in the universe. There will still be some asteroids passing through the earth’s heavy defense lines and eventually coming in close contact with the earth! The extinction of dinosaurs 65 million years ago is a masterpiece of asteroids. The dinosaurs that have ruled the earth for more than 100 million years have disappeared into the long river of history after this impact!
With the development of human science, people have become aware of the harmfulness of asteroids. A large number of follow-up observations have also been performed on near-earth asteroids. Recently, according to NASA’s tracking observations, on March 27, that is tomorrow, an asteroid with a diameter of 390 meters, 2012 XA133, will roar past in its closest distance to the earth!
What’s right with 2012 XA133? We know from the naming that this asteroid XA133 was first discovered about 2012 about eight years ago, when it was orbiting the sun, and has been observed by NASA’s Center for Near Earth Objects (CNEOS) since then. Homes have labeled this asteroid as a near-Earth object (NEO) and a potentially dangerous asteroid (PHA).
Now, NASA predicts that this space rock will fly over the earth on March 27, tomorrow, in a so-called “close contact with the earth”. Of course, this close range refers to the scale placed in the universe. At that time, the actual distance from the earth is 0.04453 astronomical units. One astronomical unit refers to the distance from the earth to the sun. The distance of this small line is converted to about 6.66 million kilometers, which is about 17.33 times the distance between the earth and the moon. At that time, it would reach 80,000 kilometers per hour!
From the perspective of the universe, it is very close to us. However, from a practical distance, it is still very far away from the earth. If we push the moon back 17 times further, everyone will not Worried that asteroids at that distance would pose a substantial danger to Earth. Therefore, despite the menacing asteroids coming this time, it is beyond doubt that our planet is completely safe.
However, in the long run, perhaps our planet will not always be so lucky. If a larger asteroid will inevitably hit the earth in the distant future, what should we do? I think this is a question that everyone must seriously consider! What do you think about this, welcome everyone to leave a message and express their views and opinions!