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Asteroid set to come closer to the Earth than the moon Nov. 8

nasa.gov

41–50 of 76 posts

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#41
Isn't about half the universe closer to the Earth than to the moon (at a particular time)?

Meaning: stand on a point of the Earth such that the moon is situated exactly above the opposite side of the Earth. Then look up. All that stuff you see is closer to the Earth than the moon.

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#42
post #30

Earlier quoted context omitted.

I hear stuff like this a lot (mining asteroids for precious metals)... Wouldn't flooding the market with that much gold...crash it? Are we really talking about that many billions and billions of dollars worth of potential revenue from mining an asteroid? This all just seems like fun sci-fantasy.

Wouldn't flooding the market with that much gold...crash it? Well, presumably only a single party is going to recover that gold. If they dumped the whole load onto the market, it would crash. But if they release it slowly, then a greater supply from each batch would cause "inflation", so that the price they could get from the next batch would be lower. But they could still derive significant wealth before trailed off…

Seville in the 16th century is the best example of what might happen. Spain got hold of the equivalent of a gold-filled asteroid - South America. All the gold and silver came in through the port at Seville, which became very rich, and inflation slowly radiated out from there to the rest of Europe.

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#43
post #14

Am I the only one who read the article hoping for a "If it DID hit the earth, X would happen..."?

A couple of nights ago a had strange dream about asteroids hitting earth. Didn't think much of it... still don't think much it.... but I would like to know where this would hit if it were to hit.

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#44

Isn't about half the universe closer to the Earth than to the moon (at a particular time)? Meaning: stand on a point of the Earth such that the moon is situated exactly above the opposite side of the Earth. Then look up. All that stuff you see is closer to the Earth than the moon.

I suppose so but that is not really the point. The point is that the asteroid will be closer to the Earth than the moon is to Earth. Now, that is worth noting.

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#45

Isn't about half the universe closer to the Earth than to the moon (at a particular time)? Meaning: stand on a point of the Earth such that the moon is situated exactly above the opposite side of the Earth. Then look up. All that stuff you see is closer to the Earth than the moon.

Um, short answer, no.

You're not related to the Ravenous Bug Blatter Beast of Traal by any chance are you?

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#46
post #43
post #14

Am I the only one who read the article hoping for a "If it DID hit the earth, X would happen..."?

A couple of nights ago a had strange dream about asteroids hitting earth. Didn't think much of it... still don't think much it.... but I would like to know where this would hit if it were to hit.

That's kindof like not having a sweater, and asking what color it would be if you had one. If you alter reality such that it would hit, I think you sortof have your arbitrary choice of where.

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#47
post #6

The Moon is much larger and much farther away from the Earth than you are probably imagining when you hear this. Still cool, though.

Here's an image of the Earth (on the left) and the Moon (on the right) to get a better sense of the distance between the two: http://eoimages.gsfc.nasa.gov/images/imagerecords/51000/5196...

Also: http://www.freemars.org/jeff/planets/Luna/Luna2c.png

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#48
post #43

Earlier quoted context omitted.

A couple of nights ago a had strange dream about asteroids hitting earth. Didn't think much of it... still don't think much it.... but I would like to know where this would hit if it were to hit.

That's kindof like not having a sweater, and asking what color it would be if you had one. If you alter reality such that it would hit, I think you sortof have your arbitrary choice of where.

Hmm, I wonder if the poles would get hit less often than the tropics due to the distribution of asteroids being more or less in the ecliptic, or whether that's not sufficiently significant. Probably not -- I don't know of any latitude-dependent distribution of lunar craters.

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#49
post #32
post #30

Earlier quoted context omitted.

I hear stuff like this a lot (mining asteroids for precious metals)... Wouldn't flooding the market with that much gold...crash it? Are we really talking about that many billions and billions of dollars worth of potential revenue from mining an asteroid? This all just seems like fun sci-fantasy.

Would it sound less far-fetched if we talked about mining asteroids for rare-earth metals, conductive metals like copper, industrial metals like titanium, etc?

The sad part is that regardless of whether it's copper or gold, the economics of mining asteroids still doesn't work out.

Re: Asteroid set to come closer to the Earth than the moon Nov. 8

#50
post #30

Earlier quoted context omitted.

I hear stuff like this a lot (mining asteroids for precious metals)... Wouldn't flooding the market with that much gold...crash it? Are we really talking about that many billions and billions of dollars worth of potential revenue from mining an asteroid? This all just seems like fun sci-fantasy.

Wouldn't flooding the market with that much gold...crash it? Well, presumably only a single party is going to recover that gold. If they dumped the whole load onto the market, it would crash. But if they release it slowly, then a greater supply from each batch would cause "inflation", so that the price they could get from the next batch would be lower. But they could still derive significant wealth before trailed off…

Presumably people would start using gold for all sorts of other things -- eg. replacing copper in wires -- so the market would also expand.
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