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Only slight chance of asteroid Bennu hitting Earth: NASA

Still Waters

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An asteroid known as Bennu will pass within half the distance of the Earth to the Moon in the year 2135 but the probability of an impact with our planet in the coming centuries is very slight, scientists said Wednesday.

OSIRIS-REx, a NASA spacecraft, spent two years near Bennu, an asteroid that is about 1,650 feet (500 meters) wide, observing its size, shape, mass and composition and monitoring its orbital trajectory around the sun.

Using its robotic arm, the spacecraft also collected a sample from the surface of the asteroid that will help researchers determine the future trajectory of Bennu.

The rocks and dust collected by OSIRIS-REx are scheduled to return to Earth on September 24, 2023.



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The amount of math that must go into these predictions gives me a massive headache. Kudos to those who enjoy doing this type of stuff. 

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It would make a good sf-movie if the kinetic impact of Nasa's Osiris mission on Bennu's trajectory made it collide with earth in 2182.

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Technology has 100 years or more to remedy this particular asteroid. However, in the meantime here we are vulnerable to unknowns floating out there..

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  • 1 month later...

""Using NASA’s Deep Space Network and state-of-the-art computer models, scientists were able to significantly shrink uncertainties in Bennu’s orbit, determining its total impact probability through the year 2300 is about 1 in 1,750 (or 0.057%). The researchers were also able to identify September 24, 2182, as the most significant single date in terms of a potential impact, with an impact probability of 1 in 2,700 (or about 0.037%). Credit: NASA’s Goddard Space Flight Center""


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