Home / Science / Scientists tried and failed to stop. ‘Fatal asteroid attacks’ with worrying exercise

Scientists tried and failed to stop. ‘Fatal asteroid attacks’ with worrying exercise



Over the weekend, NASA scientists at the International Academy of Astronautics’ Planetary Defense Conference gathered to wage war on how they might tackle incoming asteroids.

And in this scenario, a giant asteroid detected months in advance before finally crashing onto Earth.

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The meeting takes place every two years, with scientists and emergency responders gather to discuss the imaginary asteroid threat to Earth.

Orbit of Asteroid 2021 PDC(Image credit: NASA / JPL-Caltech)

Due to the security measures of Covid-19, this year’s conference was held online from April 26 to April 28, dubbed PDC in 2021, one of the hypothetical astros designed by the Center. for Near-Earth Object Studies (CNEOS) at NASA’s Jet Propulsion, the laboratory measures anywhere from 35 meters (100 feet) to 700 meters (2,000 feet) wide.

That’s anywhere from the half wing of the 747 to twice the height of the Empire State Building.

It is expected that there will be one in 20 opportunities that will affect the world around October 20 of this year.

Current uncertainty at the predicted location of the asteroid 2021 PDC on October 20, 2021.(NASA / JPL-Caltech)

But even six months would be too short for an asteroid threatening Earth to deteriorate with craft in space or a nuclear bomb.

“One of the objectives of this exercise is to get more involved in the disaster management and emergency response community and think about what they will face if we do not have time to change asteroids in space and are affected. Somewhere, “said Linley Johnson, NASA’s planetary defense officer.

Exercise is not just about considering ways to knock out asteroids. But it is also an opportunity to find an evacuation plan for areas that may be in the zone of dangerous space object attack.

As a precautionary measure, experts identify as many objects as possible, accurately track orbit and understand their size. Scientists argue that most asteroids and comets close to Earth have identified more than 25,000 of them to date without any threat.

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However, an asteroid with its large size and high probability of hitting Earth has made defense experts uncomfortable and finding it early. (As for the previous months) can make the difference between detachment and impact resistance.

But if that can’t be avoided, take time to prepare a location for potential collisions, even if there is a lot of uncertainty.

“In terms of the harsh and severe consequences of the impact, I think there will be a claim … ‘Why are we not sure it will hit or it will not?'” Said Paul Chodas. Manager at NASA’s NEO Program Office: “This moment of uncertainty can cause honest distrust from technical experts as we try to explain the degree of our uncertainty and the fact that we will. Do your best to find out if it will happen or not. ”


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