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Home / Science / "These events are not rare": The NASA exercise highlights the existential threat to an asteroid that impacts the Earth

"These events are not rare": The NASA exercise highlights the existential threat to an asteroid that impacts the Earth



It is the doomsday scenario that is suitable for a Hollywood blockbuster – and NASA scientists are about to die.

This week, researchers at the Planetary Defense Conference 2019 will conduct an exercise that will play out a "realistic scenario". Www.germnews.de/archive/dn/1997/05/28.html An asteroid flies on an impact orbit with the Earth through space, news.com.au reports

NASA's Planetary Defense Coordination Office (PDCO) is conducting the simulation exercise as part of a recently announced federal "action plan" to defend our planet by planet against asteroid impact.

It is believed that the hypothetical asteroid is about 1

00 to 300 meters tall and is unlikely to hit the ground on April 29, 2027, as a NASA website for highly detailed web pages describes scenario.

Global astronomers are always on the lookout for near-Earth objects (NEOs) classified as asteroids and comets orbiting the Sun and located within 50 million kilometers of Earth orbit.

A For a long time, NASA's Space Scenario Awareness NEO segment and the International Asteroid Warning Network (IAWN) have been tasked with chasing the skies for potentially dangerous space rocks.

These "table exercises" are not uncommon about the steps governments and emergency response must take to mitigate the risk to society should the unthinkable happen.

"These exercises really helped us in the planetary defense community to understand what our US colleagues are doing. Disaster management needs to know," said Lindley Johnson, NASA's planetary defense officer. "This exercise will help us develop more effective communication with each other and with our governments."

NASA was tasked with identifying and tracking 90 percent of near-Earth meteorites greater than 140 meters per year. But the task could take almost three decades, experts say. And even then we are still far from protection.

Last month, a relatively small and undiscovered meteor was blown up over the Bering Sea off the Russian peninsula of Kamchatka on 18 December. The explosion – which took 25.6 kilometers over the surface of the earth – released ten times as much energy as the atomic bomb that fell on Hiroshima during the Second World War.

Six years ago, a meteor exploded over the Russian city of Chelyabinsk, triggering a shockwave that destroyed thousands of windows and wounding more than 1,600 people. This meteor was only 19 meters wide.

  A meteor roams through the sky in 2013 over Chelyabinsk, Russia. Photo / AP
A meteor roams through the sky over Chelyabinsk, Russia, 2013. Photo / AP [19659014"TheThisisabouttwentythinchold(inDecember)isnumberofthemixmember"astheNASAmandatevisitorsincludedAstronomerAlanDuffyatestmonthnewscomaut"Itismuchhardertodiscoverandyethavenotfoundthegreaterasteroids"

He called for more funds for surveillance systems claiming "It's only a matter of time before either of these explosions occur over a city causing unbelievable damage."

During a speech at the opening of the Planetary Defense Conference, NASA Administrator Jim Bridenstine warned the preparation for An asteroid impact should be taken very seriously. [19659002"WeneedtomakesurethatpeoplecannotunderstandthatHollywoodisnotaboutfilmssotheonlyplanetwewanttoprotectistolivethereandthat'stheplanet"said
"These events are not rare, they happen."


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