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Earth had a close shave with a large Asteroid this weekend.

  • 16-04-2018 11:51am
    #1
    Registered Users Posts: 1,701 ✭✭✭


    So it seems an asteroid (2018 GE3) swept by at half the moon’s distance Sunday, just hours after being detected. Its size is 3 to 6 times that of the space rock that penetrated the skies over Chelyabinsk, Russia, in 2013.

    What's surprising about this is not only how close it came to earth but the fact that it was only discovered on Saturday. This asteroid is estimated to have been of similar size to the Tunguska Asteroid of 1908 that flattened 2,000 square miles of Forrest in Russia.
    It is the both largest known asteroid to ever pass that close to Earth, as well as the Moon, in observational history

    Wikipedia


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Comments

  • Registered Users Posts: 4,825 ✭✭✭LirW


    Wait, is that the one that's scheduled to eradicate Earth on the 23rd and it actually ran early?! Damn you, messing my plans up there stupid Asteriod!


  • Registered Users Posts: 8,353 ✭✭✭corner of hells


    I'm not sure if I'd like to know if we were going to get a smack of it or not .

    And anyway is Bruce Willis getting a bit old , so we'd be fcuked.


  • Registered Users Posts: 1,701 ✭✭✭Celticfire


    I'm not sure if I'd like to know if we were going to get a smack of it or not .

    And anyway is Bruce Willis getting a bit old , so we'd be fcuked.

    We'd have been fcuked anyhow... 1 days notice isn't exactly enough time to formulate any sort of plan.


  • Registered Users Posts: 8,353 ✭✭✭corner of hells


    Celticfire wrote: »
    We'd have been fcuked anyhow... 1 days notice isn't exactly enough time to formulate any sort of plan.

    Ahem Superman has experience of these things.


  • Closed Accounts Posts: 2,379 ✭✭✭donegaLroad


    How fitting it would have been had it struck us on Friday 13th


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  • Registered Users Posts: 10,462 ✭✭✭✭WoollyRedHat


    As if there wasn't enough things trying to kill us on a daily basis, we know have to contend with rocks from outer space attempting to obliterate us to boot. I think I need to lye down.


  • Registered Users Posts: 3,462 ✭✭✭Bob Harris


    I thought the fellas in NASA were watching out for this kinda thing.
    Probably all glued to porn.


  • Registered Users Posts: 68,317 ✭✭✭✭seamus


    Be fairly awesome to experience tbh. If the world didn't end when a similar object hit in 1908, this would hardly be judgement day.

    I think we're fairly overdue a large impact like this anyway, so the odds of one landing in our lifetimes pretty big.

    Thing is, for this to be a major cataclysm requires lots and lots of really unlikely things to happen at the same time. The area of the earth's surface actually occupied by people is tiny. A direct impact which causes lots of deaths, or even triggers a series of other events (such as earthquakes and tsunamis), is very improbable. Most likely it would come down just like it did in Tunguska - in a remote and sparsely populated area, or in an ocean a long way from land.


  • Registered Users Posts: 22,215 ✭✭✭✭Akrasia


    It's kinda hard to see rocks floating in space, especially if they're coming at us from the wrong way (from the sunny side) all we'd see is a shadow against a black background.


  • Registered Users Posts: 11,262 ✭✭✭✭jester77


    Akrasia wrote: »
    It's kinda hard to see rocks floating in space, especially if they're coming at us from the wrong way (from the sunny side) all we'd see is a shadow against a black background.

    That's why you should look for them at night time :pac:


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  • Registered Users Posts: 16,106 ✭✭✭✭Grayson


    seamus wrote: »
    Be fairly awesome to experience tbh. If the world didn't end when a similar object hit in 1908, this would hardly be judgement day.

    I think we're fairly overdue a large impact like this anyway, so the odds of one landing in our lifetimes pretty big.

    Thing is, for this to be a major cataclysm requires lots and lots of really unlikely things to happen at the same time. The area of the earth's surface actually occupied by people is tiny. A direct impact which causes lots of deaths, or even triggers a series of other events (such as earthquakes and tsunamis), is very improbable. Most likely it would come down just like it did in Tunguska - in a remote and sparsely populated area, or in an ocean a long way from land.

    To be fair 2/3 of the planet is water and the majority of large settlements are on the coast. And tsunamis travel a long distance.
    So a tsunami is more likely that it hitting land that's not populated.


  • Registered Users Posts: 969 ✭✭✭Greybottle


    If I'd known that I would have had the bullocks out for a shave.


  • Registered Users Posts: 4,532 ✭✭✭worded


    I follow the saying .... beware of so called friends who throw rocks at you

    The mother of all rocks, a belt of an asteroid, make sure your VHI aid up to date in case one hits you !

    My name is worded .... and I’m glad I’m with VHI health care

    Plans A7 and Family + now cover asteroid hits

    Also a good idea to carry asteroid repellant spray when outdoors


  • Registered Users Posts: 8,353 ✭✭✭corner of hells


    worded wrote: »
    I follow the saying .... beware if so called friends who throw rocks at you

    The mother of all rocks, a belt of an asteroid, make sure your VHI aid up to date in case one hits you !

    My name is worded .... and I’m glad I’m with VHI health care

    Plans A7 and Family + now cover asteroid hits

    Asteroid cover , just before hemoroid cover.


  • Registered Users Posts: 9,605 ✭✭✭gctest50


    Celticfire wrote: »
    .....

    What's surprising about this is not only how close it came to earth but the fact that it was only discovered on Saturday.........

    How did that happen ? That one comes past every 2 and a half years


  • Closed Accounts Posts: 7,070 ✭✭✭Franz Von Peppercorn


    seamus wrote: »
    Be fairly awesome to experience tbh. If the world didn't end when a similar object hit in 1908, this would hardly be judgement day.

    I think we're fairly overdue a large impact like this anyway, so the odds of one landing in our lifetimes pretty big.

    Thing is, for this to be a major cataclysm requires lots and lots of really unlikely things to happen at the same time. The area of the earth's surface actually occupied by people is tiny. A direct impact which causes lots of deaths, or even triggers a series of other events (such as earthquakes and tsunamis), is very improbable. Most likely it would come down just like it did in Tunguska - in a remote and sparsely populated area, or in an ocean a long way from land.

    I think that was the most lucky place for it to land. The rest of the world is in fact - some deserts or artic /Antarctic regions aside, pretty heavily populated. Or sea. Which would mean a tsunami.


  • Registered Users Posts: 738 ✭✭✭Roadtoad


    Suppose it came to earth in some militarily sensitive or politically sensitive place, and that nation then thought they were being attacked by other earthlings, then what? Multiple chain reaction tits for tats, with an out of this world trigger. Sad. Serious covfefe!


  • Posts: 0 ✭✭✭✭[Deleted User]


    Roadtoad wrote: »
    Suppose it came to earth in some militarily sensitive or politically sensitive place, and that nation then thought they were being attacked by other earthlings, then what? Multiple chain reaction tits for tats, with an out of this world trigger. Sad. Serious covfefe!

    Pretty sure they know the difference between a big giant rock and nuclear bombs


  • Registered Users Posts: 17,624 ✭✭✭✭VinLieger


    gctest50 wrote: »
    How did that happen ? That one comes past every 2 and a half years

    Think you are mistaken https://en.wikipedia.org/wiki/2018_GE3
    It was first observed on 14 April 2018, only one day prior to its sub-lunar close encounter with Earth at 0.50 LD (0.00128 AU) on 15 April 2018


  • Registered Users Posts: 68,317 ✭✭✭✭seamus


    I think that was the most lucky place for it to land. The rest of the world is in fact - some deserts or artic /Antarctic regions aside, pretty heavily populated. Or sea. Which would mean a tsunami.
    This one is actually pretty small, so hitting the sea might produce something of a ripple, but nothing world-ending in terms of waves.

    In terms of population, 95% of the population lives in a total area that accounts for about 3% of the surface of the earth.

    So it would in fact be incredibly unlucky for a meteor of this size to come down in a populated area where tens or hundreds of thousands would die. A Tunguska event is far more likely, though a death toll of tens or hundreds would not be unlikely.


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  • Registered Users Posts: 15,815 ✭✭✭✭Discodog


    Pretty sure they know the difference between a big giant rock and nuclear bombs

    The closest we have ever come to Nuclear war was during a war game :eek:

    It was called Able Archer & the Soviets thought that it was a cover for a real invasion.


  • Registered Users Posts: 9,605 ✭✭✭gctest50


    VinLieger wrote: »

    It's one of the Apollo asteroids though, they all cross the path of the Earth

    Splat




  • Closed Accounts Posts: 4,744 ✭✭✭diomed


    Asteroids was a brilliant game ... pow, pow, pow.


  • Registered Users Posts: 8,264 ✭✭✭AllForIt


    Asteroids - The best a planet can get.


  • Registered Users Posts: 32,634 ✭✭✭✭Graces7


    How fitting it would have been had it struck us on Friday 13th

    But we would maybe never have known what hit us.. :eek:


  • Registered Users Posts: 8,810 ✭✭✭Hector Savage


    It sounds scary but when you do the maths ....

    Take the Earth as a 2D disc r = 6371km

    It says it passed halfway out to the moon, so lets take this massive disc as R = 192,200km


    Area target Earth = 40,589,641¶ km2

    Area of C = 36,940,840,000¶km2


    Chances of it hitting the target earth ~0.1%


    yeah we were grand ... and thats not even taking the 3D into account ...


  • Posts: 0 [Deleted User]


    Chances of it hitting the target earth ~0.1%

    So you’re saying there’s a chance


  • Posts: 0 ✭✭✭✭[Deleted User]


    It sounds scary but when you do the maths ....

    Take the Earth as a 2D disc r = 6371km

    It says it passed halfway out to the moon, so lets take this massive disc as R = 192,200km


    Area target Earth = 40,589,641¶ km2

    Area of C = 36,940,840,000¶km2


    Chances of it hitting the target earth ~0.1%


    yeah we were grand ... and thats not even taking the 3D into account ...

    Is the scary bit not, that they didnt know an asteroid was passing that close to us untill 1 day away.


  • Registered Users Posts: 555 ✭✭✭shaunr68


    Even large impacts like Tunguska in 1908 are relatively insignificant on a global scale. 700 square miles of forest flattened sounds a lot but that's about the size of Leitrim. I doubt anyone would even notice. :D

    The chance of it happening over a densely populated area like a major city are miniscule. Mind you I'm out in the sticks here, it will be just my luck if one drops on my house.


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  • Registered Users Posts: 35,561 ✭✭✭✭BorneTobyWilde


    shaunr68 wrote: »
    Even large impacts like Tunguska in 1908 are relatively insignificant on a global scale. 700 square miles of forest flattened sounds a lot but that's about the size of Leitrim. I doubt anyone would even notice. :D

    The chance of it happening over a densely populated area like a major city are miniscule. Mind you I'm out in the sticks here, it will be just my luck if one drops on my house.

    If it hit Leitrim they'd notice.


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