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Huge Asteroids Brought Gold to Infant Earth, Study Says
National Geographic News ^
| December 9, 2010
| Brian Handwerk
Posted on 12/24/2010 11:45:17 AM PST by SunkenCiv
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To: SunkenCiv
Silly scientist. Everyone knows the moon, Mars and the Earth were bombarded with gold & iron when the planet between mars and Jupiter was hit by planet X
21
posted on
12/24/2010 12:32:59 PM PST
by
winodog
To: SunkenCiv
22
posted on
12/24/2010 12:35:51 PM PST
by
bleach
(Thanks to all you Vets!)
To: almost done by half
Yes. Maybe we’ll be lucky and get hit by a huge asteroid.
To: billorites
24
posted on
12/24/2010 1:10:38 PM PST
by
NonValueAdded
(Palin 2012: don't retreat, just reload)
To: America_Right
Mars is roughly twice the size of the moon.
Note that that's diameters. For the Moon - Mars - Earth, the ratios are roughly: 1 - 2 - 4
Volumes would be the cubes of those: 1 - 8 - 64
So the Moon, at only 1/64th Earth's volume, is actually a small chunk.
To: SunkenCiv; CJ Wolf; houeto; Quix; null and void; B4Ranch; Whenifhow; Silentgypsy; blam; FromLori; ..
Waiting-for-the-frakincense-and-myrrh-theory-to-complete-this-Christmas-theme ping.
"Space Energy/Solar Weirdness" ping.
Ping list dealing with odd space phenomena and solar events.
FReepmail me if you want on or off
The Comedian's "Space Energy/Solar Weirdness" ping list...
Frowning takes 68 muscles.
Smiling takes 6.
Pulling this trigger takes 2.
I'm lazy.
26
posted on
12/24/2010 2:18:45 PM PST
by
The Comedian
(Government: Saving people from freedom since time immemorial.)
To: SunkenCiv
One big asteroid was the one that hit Fort Knox. All that gold had a chapel built it over by the natives who now have their warriors guarding it. Be warned! To approach it may mean death to the uninitiated.
27
posted on
12/24/2010 2:44:58 PM PST
by
count-your-change
(You don't have be brilliant, not being stupid is enough.)
To: billorites
To: canuck_conservative
Heh, yeah. Different way of looking at it, same result. :) Heck, we could take it a step further and look up densities, as well, and do a whole thing with the total mass of each body! No reason to go into that, though, since we are in total agreement on this. My only point was that a Mars-sized object hit early Earth and a bit of the ejecta eventually coalesced into our moon.
As an aside, from what I have watched/read, the Earth and the object basically destroyed each other, and were nothing but big piles (a single big pile?) of rubble for a LONG time. The early Solar system was a very dangerous place.
29
posted on
12/24/2010 3:12:29 PM PST
by
America_Right
(The best thing about the Obama Presidency: McCain isn't the President!)
To: bigheadfred
Dammit Jim, Im a cabinetmaker, not a physicist...Good one! Neither am I. Just a wannabe astronomer/astrophysicist. Never could handle the math, though. Ended up doing computer stuff. Still sciency, but without all the math. My childhood hero was Carl Sagan. But then Reagan came along and knocked him out of first place. :)
30
posted on
12/24/2010 3:17:38 PM PST
by
America_Right
(The best thing about the Obama Presidency: McCain isn't the President!)
To: SunkenCiv
Based on computer simulations...
IOW, a Wild-A$$ed Guess.
31
posted on
12/24/2010 3:28:18 PM PST
by
Bratch
To: The Comedian
There's a ping list for THAT??!!!
32
posted on
12/24/2010 4:57:06 PM PST
by
starlifter
(Pullum sapit)
To: America_Right; SunkenCiv
Immanuel Velikovsky was always a fave of mine. My mom handed me one of his books when I was in Jr. High. It was on.
Just because the impact theory is the most widely accepted one currently doesn’t mean I HAVE to believe it.
If they were to bribe me with some of that there high falutin’ grant fundage I might mouth the words they whisper in my ear.
What they need to do is invent a time traveling video camera and send it back. Seeing is believing.
33
posted on
12/24/2010 5:00:37 PM PST
by
bigheadfred
(Merry Christmas)
To: The Comedian
LOVE YA BRO.
HAVE A BLESSED DAY.
34
posted on
12/24/2010 5:06:33 PM PST
by
Quix
(Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
To: America_Right; canuck_conservative
Heck, we could take it a step further and look up densities, as well, and do a whole thing with the total mass of each body!Wouldn't the mass of the moon be less comparatively as it lacks the heavier core?
Made of lighter materials.
Lighter than air.
That must be right!
I've SEEN it floating thru the night sky!
;-)
35
posted on
12/24/2010 5:29:29 PM PST
by
bigheadfred
(This is going to be GREAT!)
To: canuck_conservative; America_Right
Right you are about the volume. Density also matters, the Moon has about 1/100th the mass of the Earth, Mars though is about 1/8th the mass of Earth as well as about 1/8th the volume.
36
posted on
12/24/2010 10:07:18 PM PST
by
SunkenCiv
(The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
To: Bratch
I like that gif, may have to steal that.
37
posted on
12/24/2010 10:08:42 PM PST
by
SunkenCiv
(The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
To: count-your-change
38
posted on
12/24/2010 10:41:18 PM PST
by
SunkenCiv
(The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
To: bigheadfred; winodog; GeronL; America_Right; canuck_conservative
39
posted on
12/24/2010 10:47:27 PM PST
by
SunkenCiv
(The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
To: bigheadfred
Wouldn't the mass of the moon be less comparatively as it lacks the heavier core?Yes, the mass is definitely less. But I think you are confusing mass with density. Mass equals density times volume. And yeah, the Earth is a heck of a lot more dense than the moon. All the lighter, dusty stuff coalesced into the moon, while we kept all the nice, dense, metallic stuff for ourselves down here (like our heavy iron core that you mentioned - without which we would be totally $crewed).
And you have a good point about the moon floating. I never thought of that. It's like a gigantic dust balloon. Yeah! That's it!
Oh, and Merry Christmas, everybody! I just noticed it is passed midnight in my timezone.
40
posted on
12/24/2010 11:59:11 PM PST
by
America_Right
(The best thing about the Obama Presidency: McCain isn't the President!)
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