Man and an asteroid. The true size of the stone that the DART device crashed into is shown (photo)
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A Reddit user decided that comparing the size of a person to the size of an asteroid can most accurately show how huge this space rock is.
For almost 2 weeks, many people who have followed the first-ever collision of a spacecraft with an asteroid continue to discuss this event. In order to imagine how huge the asteroid Dimorph is, which DART crashed into on September 27, a Reddit social network user placed a human figure on a photo of the asteroid, writes Newsweek.
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Asteroid Dimorph, which revolves around the asteroid Didymus at a distance of 11 million km from Earth, became famous after it at a speed of more than 20 thousand km/h, the DART spacecraft crashed. Focus has already written about this famous event and what the essence of this mission is. In short, NASA tested a unique way to protect the Earth from asteroid impacts.
Although scientists believe that the mission was successful, it is still not known for sure whether the flight path of the asteroid Dimorph has changed. To do this, scientists will observe the behavior of the space rock for 1-2 months. Focus already wrote that one of the telescopes on Earth was able to see a huge stream of debris that flew away from the asteroid after the impact. The approximate length of this cosmic plume is 10 thousand km.
According to NASA, the approximate size of the asteroid Dimorph is just over 160 meters. And the size of its companion, around which it revolves, the asteroid Didymus, is almost 800 meters. Before the DART spacecraft collided with the target asteroid, it managed to send several photographs of its surface to Earth. In particular, one of the images showed a section of the surface of an asteroid with a diameter of 30 meters.
But the true size of the Dimorph asteroid is hard to imagine if it's just a numerical designation. In this case, comparisons with known objects are the best option. Or with a person. The latter was just done by one of the users of the social network Reddit, who placed the figure of a man, 1 m 75 cm tall, on the image of an asteroid.
According to Reddit user PM_CTD, many people have tried to represent the scale of the asteroid using known structures on Earth. But he felt that a comparison with human height would be the best option for solving the problem of visualizing the true size of the Dimorph asteroid.
According to Brad Gibson of the University of Hull , Great Britain, nevertheless, the difference is not in the size of the Dimorph asteroid with other objects, but in its weight. This asteroid weighs approximately 5 billion kg, and the weight of the DART spacecraft was 500 kg. This means that the weight of the space rock is more than 10 million times.
As Focus already wrote, a few days ago, 4 asteroids flew near the Earth at great speed at once.