Apophis 99942 is a 370 meter wide near-surface space rock that briefly gave cause for concern in December 2004, when initial observations showed a probability of up to three percent that it could hit Earth on April 13, 2029. In 2006, scientists closed it Date and determined that Apophis would pass a gravitational keyhole – a tiny region in space where the gravity of a planet is changing. Exactly seven years later, on April 13, 2036, the researchers expected a future impact to occur.
However, the probability of a direct impact in 2036 is almost ruled out with a probability of only 1: 150,000 collision in 2068.
Neil deGrasse Tyson warned what would happen if the stone fell to the earth.
The American astrophysicist and author presented his research findings in 2008 during a public talk with Ryan Watt in San Francisco.
He said: "In times of observing the cosmos with technology, this will be the next greatest thing we will ever see.
"The orbit we have now is unsure enough, as these things are hard to measure, we can not tell you exactly where this trajectory will be.
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"This will send a tsunami wave from this 50 foot high outward town.
"Oceans do not like holes in them, so this three-mile-high wall does what? It collapsed.
"It falls back into the hole with such ferocity that it rises high into the atmosphere and falls back into the ocean and erodes it again.
"This cycle lasts about 50 seconds, you can calculate it."
Dr. Tyson had sobering prospects for North America.
He continued, "There you are on the beaches of Malibu and a tsunami comes in.
"The first wave needs water to exist, and the next wave actually absorbs it to create itself.
"Whatever was on the coast will now be returned to the sea and the next tsunami will bring it back to the shore.
"So, whatever happens, all the artificial stuff, all the houses, factories, they're thrown into the ablative power that cleanly blasts the entire west coast of North America.
"It is April 1
Defiance Since then, it has been determined that the keyhole is a width of less than 600 meters is therefore very unlikely.
In 2008, NASA confirmed the likelihood that Apophis affected the Earth, at 1 in 45,000, 2068, were calculated from 1 to 150,000 by the JPL Sentry Risk Table .