NASA’s Dart spacecraft has changed the trajectory of the target asteroid beyond expectation

So. The orbit of the asteroid "Dimorphos" with a width of about 160 meters has been changed for about 32 minutes by the impact of the "DART" spacecraft and has marked a historic event in the process of protecting the planet Earth from the threat of space objects. It is.

p>NASA announced a few minutes ago that the space agency's recent attempt to deflect the path of an asteroid was successful, and researchers came to this conclusion after measurements using a wide range of ground and space telescopes.

So. The orbit of the asteroid "Dimorphos" with a width of about 160 meters has been changed for about 32 minutes by the impact of the "DART" spacecraft and has marked a historic event in the process of protecting the planet Earth from the threat of space objects. It is.

Dart's achievement proves that such an idea really does work, provided it starts early enough and the goal isn't too big. "This success shows that NASA is trying to be ready for whatever the universe throws at us," said NASA Administrator Bill Nelson. I believe that NASA has proven that we are a real defender of the planet."

DART spacecraft on September 26 (morning of October 5) at 19:14 Eastern time zone (02:44 Tehran time) with The speed of more than 22.5 thousand kilometers per hour hit the asteroid moon Dimorphos which revolves around the larger asteroid "Didymos".

  • NASA He successfully crashed the Dart spacecraft into the asteroid Dimorphos. In these images, within minutes, Dimorphos grew from a hazy mass a few pixels in size to an egg-shaped mass of rubble that filled the spacecraft's field of view, growing larger and larger until the final image transmission abruptly stopped.

    Perhaps in other missions, cutting off the image of the spacecraft is considered a problem, but this time it was a sign of the success of the mission in meeting the target. Instead of the spacecraft's own camera, the Liciacube camera (LICIAcube), which was built by the Italian Space Agency and was deployed around the main spacecraft in the previous days, was responsible for recording the images of the moment of impact.

    BingMag.com NASA’s Dart spacecraft has changed the trajectory of the target asteroid beyond expectation

    The moment the dart hits Dimorphos
    Credit: ASI/NASA

    Effects of impact

    For the Dart mission to be considered a success, it was necessary to shorten Dimorphos' 11-hour, 55-minute orbit by at least 73 seconds. However, the mission managers hoped that this time difference would be much longer and close to 10 minutes. But an orbital change of more than 30 minutes was not even considered a possibility in pre-collision studies. It's a sensible way to deflect dangerous asteroids that threaten Earth in the future.

    This method, called the Kinetic Impact strategy, is potentially scalable to much larger space rocks that They can even cause mass extinction on Earth, perverse; Of course, as long as their existence is detected early enough.

    • NASA's exercise to simulate the impact of an asteroid with the Earth had alarming results

    But there is one drawback to Dart's strategy: the massive dust that covers the asteroid system after impact can be dangerous for additional spacecraft to collide with, and if one impact isn't enough, it can cause problems.

    According to the mission scientists, "In a real emergency, we may need to make a much larger change in the asteroid's speed, and the asteroid may be more massive. "So if we need more than one kinetic impact to completely deflect an asteroid off course, a dusty environment can make a second impact on the target asteroid a challenge."

    However. , the Dart test has provided Earth's planetary defense teams with a wealth of information that is invaluable and key to protecting our blue world and the billions of species that rely on it for survival.

    Cover Photo: Analysis Data from the impact of the Dart spacecraft on the asteroid Dimorphos
    Credit: ASI/NASA

    Sources: BBC, National Geograpguc

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