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NASA reveals revised risk of Bennu collision


Posted on Thursday, 12 August, 2021 | Comment icon 6 comments

Bennu is coming, but will it hit us ? Image Credit: NASA Goddard Conceptual Image Lab
At a news conference yesterday, the space agency revealed how likely it is that the asteroid will hit us.
When it comes to disaster scenarios, there are none quite as terrifying as the prospect of a gigantic asteroid hurtling into the Earth, causing untold devastation and wiping out human civilization.

This isn't a scenario limited to the movies either - it has happened multiple times throughout Earth's history, resulting in major extinction events such as the one that killed the dinosaurs.

As things stand, it is not a question of if it will happen again, but when.

One of the most disconcerting asteroids we currently know about is Bennu - a huge space rock measuring 200 meters across that has the potential to collide with the Earth in the near future.
Now according to NASA, the current data suggests that Bennu has a 1 in 1,750 chance of colliding with the Earth within the next 300 years - a slight increase on previous estimates.

The highest risk will come during a near-miss on September 24th, 2182.

While this might not sound particularly reassuring, these odds are still pretty small, leading NASA scientists to conclude that it is highly unlikely that we will need to take any action.

"In 2135, asteroid Bennu will make a close approach with Earth. Although the near-Earth object will not pose a danger to our planet at that time, scientists must understand Bennu's exact trajectory during that encounter in order to predict how Earth's gravity will alter the asteroid's path around the sun - and affect the hazard of [future] Earth impact," NASA said in a statement.

"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 Sept. 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%)."

Source: EarthSky.org | Comments (6)


Tags: Asteroid, Bennu


Recent comments on this story
Comment icon #1 Posted by Robotic Jew on 12 August, 2021, 18:40
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. 
Comment icon #2 Posted by NCC1701 on 12 August, 2021, 21:35
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.
Comment icon #3 Posted by joshy on 13 August, 2021, 1:57
Not like we'll still be around in any real capacity with the way the climate problem is going.
Comment icon #4 Posted by TwinStarScorpio on 13 August, 2021, 2:43
the top super powers need to send them ufos and nuke it :3
Comment icon #5 Posted by South Alabam on 13 August, 2021, 4:05
Technology has 100 years or more to remedy this particular asteroid. However, in the meantime here we are vulnerable to unknowns floating out there..
Comment icon #6 Posted by Manwon Lender on 17 September, 2021, 23:19
""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"" https://scitechdaily.com/nasa-upped-the-chance-of-asteroid-bennu-slamming-into-earth-putting-the-odds-in-perspective/


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