More than a year in the real crisis, experts have gathered to face a second emergency - a potential asteroid impact - but สล็อต fortunately this disaster is fictional.Every two years as part of the Planetary Defense Conference of The International Academy of Astronautics, scientists and emergency responders will gather to discuss asteroid threats, built from discovery to impact. During this year's practice, which was published online from April 26 to April 28, the situation presented an impact just six months away, a clear reminder that limited lead times were a major weakness in the system. Protect our asteroids The best solution to this situation is not going into it in the first place," NASA's Planetary Defense Coordinator Linley Johnson said during the scenario.Johnson and other planetary defense experts, who have focused on the threat posed by near-Earth asteroids and comets, rely on a variety of techniques to ensure Earth is nothing to fear from the thousands of rocky space rocks. Around our world First of all, there is a matter of identifying as many objects as possible, tracking their orbits as accurately as possible, and understanding how large they are. Most asteroid and comet scientists say that to date, more than 25,000 species pose no threat to Earth. These objects never cease to cross Earth's orbit at any given time, or are so small that they can safely ignite as they plummet through our Earth's protective atmosphere.
But the size and near-Earth is a combination that makes planetary defense experts uncomfortable. Until as scientists have compiled more clear observations of these space rocks in all cases, the threat has faded as these additional measurements confirmed the object would be at a safe distance from Earth.Of course, that's good news for those of us who live on this planet. But planetary defense experts want to practice what to do if our luck runs out to ensure our humans have the best chance of defending themselves.Therefore, the hypothetical asteroid exercise is equivalent to the planetary fire drill.For the Planetary Defense Conference exercise, teams of scientists from NASA and elsewhere pulled the alarm by creating a fictional asteroid to recreate the situation. Over the course of a few days, the team made additional disclosures, as well as revealing the true discovery and tracking process.Along the way, members of the full planetary protection community - from asteroid scientists and lawyers to spacecraft engineers and emergency responders - think what challenges they will face, what will they choose, and what information or plans they will be facing. He wants
Meet a fake asteroid this year
As the scenario aims to push the planetary defense boundary forward, the team behind the fictional asteroid works hard to make the situation as bad as possible: if something goes wrong, it is likely. Will do The situation this year follows that as scientists announced they had observed a fake asteroid with just six months' notice before the potential impact situation on October 20, 2021, which is at the time. Remarkably short (You can follow this in the original scenario paper posted on the website of NASA's Center for Near-Earth Object Studies, home to Paul Chodas, a planetary defense expert who leads a hypothetical asteroid design team.)Early detection of asteroids often had a lot of uncertainty, and that was the case with the created space rock, which the team dubbed the 2021 PDC.These first observations only told scientists that it was somewhere. Between 100 feet and 2,300 feet (35 to 700 meters) - anywhere from the wingspan about half of the 747 to the height of the Empire State Building twice.
In the first sighting, there is only a 1 in 2,500 chance that the 2021 PDC will hit the world, but within a week, additional observations have raised the risk to one in 20, a degree that international organizations have identified as a concern.But with just one week of observations, scientists don't know where an asteroid will actually collide if it actually collides with Earth - the whole world, except Antarctica and Australia, is at risk based on these measurements.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 Shodas. This uncertainty can lead to the very frank distrust of technical experts as we try to explain the degree of our uncertainty and the fact that we will do our best to find out if it will happen. Up or not.