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...NASA alert as TWO asteroids to make ‘close approach’ to Earth on Sunday...
The Sun UK ^ | Simon Chandler

Posted on 11/24/2018 4:57:35 PM PST by BenLurkin

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To: BenLurkin

21 posted on 11/24/2018 6:51:32 PM PST by MarMema (don't forget to stock up on dogfood)
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To: BenLurkin

22 posted on 11/24/2018 7:09:27 PM PST by RightGeek (FUBO and the donkey you rode in on)
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To: BenLurkin

It's amazing what those new-fangled telescopes will pick up these days...


       

23 posted on 11/24/2018 7:11:51 PM PST by Songcraft
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To: RightGeek

24 posted on 11/24/2018 7:14:10 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: All

Tonight on CNN, two eminent astronomers debate:

Is it Trump’s fault the asteroids miss, or that they hit?


25 posted on 11/24/2018 7:45:42 PM PST by Peter ODonnell (I taught AOC everything she knows, and it only took five minutes)
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To: BenLurkin

Bugs!


26 posted on 11/24/2018 9:08:40 PM PST by Deaf Smith (When a Texan takes his chances, chances will be taken that's fore sure)
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To: Don W
Uh, The Chelyabinsk meteor was a superbolide caused by an approximately 20 m (66 ft) near-Earth asteroid that entered Earth’s atmosphere over Russia

and given the damage it caused, and the energy released, I don't think I'd want to be under 20 miles from its point of detonation should it have come in at a steep angle. Note that "Tunguska" has been recently re-analyzed (the object's own momentum included in the explosion's effects) to be in the 3-5 megaton range...

https://en.wikipedia.org/wiki/Tunguska_event

2009 WB105 is most likely considerably bigger than the impactor that created Meteor (Barringer) Crater in AZ. If it came in at a steep angle, a conservative estimate would be a resulting explosion of 40 megatons. If that is similarly directed as per the recent analysis of the Tunguska impactor... I think I'd want to be well over 50 miles away. If it makes it to the surface, I'm not sure how far fragments of Earth's crust might be tossed.

All that said, the likelihood of any human getting whacked by an asteroid is quite low. Then again, counting the really big ones, the risk may be greater than the risk of being killed by lightning.

https://news.nationalgeographic.com/2016/02/160209-meteorite-death-india-probability-odds/

My 1st question is, how sure is NASA that one of these objects trajectory will not be altered slightly by a collision with some other object too small to readily detect, while the "near Earth object is several days away. That is, perhaps "it will pass by Earth safely" should be modified to "it will almost certainly pass by Earth safely".

My 2nd question is, why do so many of these close passages seem to occur on weekends? Is it a little joke by the Creator?

27 posted on 11/24/2018 10:12:07 PM PST by Paul R.
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To: SunkenCiv

Do you have any idea why this crater is a lot closer to square than round?


28 posted on 11/24/2018 11:37:29 PM PST by CurlyDave
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To: going hot
The one that passed by on Nov. 19 was at .03 Lunar Distance.
29 posted on 11/24/2018 11:52:03 PM PST by UCANSEE2 (Lost my tagline on Flight MH370. Sorry for the inconvenience.)
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To: CurlyDave
The original surface wasn't completely flat -- almost as if we don't live on a flat Earth. So the parts that stuck up higher blew out differently.

30 posted on 11/25/2018 10:53:23 AM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: going hot; UCANSEE2

How to Watch a Near-Earth Asteroid Zoom Closer to Earth than the Moon


31 posted on 11/25/2018 11:06:40 AM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: SunkenCiv
I was always under the impression that .03 lunar distance meant .03 X 240,000, which would make it approximately 7000 miles, which is really close by.

Your article says the nearest one passed at approximately 238,100 miles, which to me means .99+ lunar distance.

Or do we measure lunar distance starting on the moon?

32 posted on 11/25/2018 1:24:03 PM PST by going hot (happiness is a momma deuce)
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To: going hot
I didn't provide the .03 figure, that must have been a typo.

33 posted on 11/25/2018 1:27:33 PM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: SunkenCiv
:-)

Which was the whole point of my reply number 8.

34 posted on 11/25/2018 1:41:01 PM PST by going hot (happiness is a momma deuce)
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To: SunkenCiv

to number 8


35 posted on 11/25/2018 1:42:20 PM PST by going hot (happiness is a momma deuce)
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To: Don W

Hard to believe we’ve survived the last ten years... no less the tens of thousands of years we’ve been dodging these bullets...

Democrats like to whip up hysteria...


36 posted on 11/25/2018 1:51:19 PM PST by GOPJ (Watch for our survival: https://www.youtube.com/watch?v=LPjzfGChGlE)
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Topics resulting from two searches (system only goes back about four years), "asteroid" and "asteroids":

37 posted on 11/25/2018 2:28:03 PM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: going hot
Heh, irony, I love it.

38 posted on 11/25/2018 2:48:22 PM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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some selections from the "greenland" search results:

39 posted on 11/25/2018 3:04:09 PM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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