Giant meteorite fireball hits Russia!

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justthemaid

climber
Jim Henson's Basement
Feb 15, 2013 - 11:20am PT
Wow- amazing video. That's not a hoax

The largest meteorite impact in recorded history actually hit Russia back in 1908 http://en.wikipedia.org/wiki/Tunguska_event

The Tungusta Event: from Wiki (edited excerpt)


"The Tunguska event was an enormously powerful explosion that occurred near the Podkamennaya Tunguska River on June 30 1908... Different studies have yielded widely varying estimates of the object's size, on the order of 100 metres. It is the largest impact event on or near Earth in recorded history...

Although the meteoroid or comet appears to have burst in the air rather than hitting the surface, this event still is referred to as an impact. Estimates of the energy of the blast range from 5 to as high as 30 megatons of TNT with 10–15 megatons of TNT the most likely—roughly equal to the United States' Castle Bravo thermonuclear bomb tested on March 1, 1954; about 1,000 times more powerful than the atomic bomb dropped on Hiroshima, Japan...

The Tunguska explosion knocked an estimated 80 million trees down over an area covering 2,150 square kilometres (830 sq mi). It is estimated that the shock wave from the blast would have measured 5.0 on the Richter scale. An explosion of this magnitude is capable of destroying a large metropolitan area..."









Reilly

Mountain climber
The Other Monrovia- CA
Feb 15, 2013 - 11:24am PT
I don't get it. In TGT's vid the thing is long gone and then there is the
big explosion, which didn't sound like a sonic boom, and smoke rising from
that building and what sounds like gunfire.
TGT

Social climber
So Cal
Feb 15, 2013 - 11:40am PT
Lots of overpressure and probably hundreds of secondary fires and explosions. The pops could be something as simple as streetlights exploding.




Note to self;

When there's a big fireball in the sky,

Don't look out the window!

Looks like the local galvanizing plant took a direct hit.

Cosmiccragsman

Trad climber
AKA Dwain, from Apple Valley, Ca. and Vegas!
Feb 15, 2013 - 11:46am PT
My question is; would the government or the scientist really tell us the truth if an asteroid was about to hit the earth,
or would they fudge a little to keep the worldwide panic down?

Klimmer

Mountain climber
San Diego
Feb 15, 2013 - 11:49am PT
Perhaps not as massive and as famous as the Sikhote-Alin ...










But when they triangulate, search, and find, some Russians are going to make some good money when they locate fragments of this witnessed meteorite fall. Good time to look in the winter.

Seems like many witnessed falls have occurred these last few years around the world. Maybe people are just waking-up to the phenom more and we're all carrying cameras in our pockets. The scientific community is greatly benefiting from these "Poor Man Space-probes" that are scientifically priceless, not to mention their monetary worth.
dave

climber
Earth
Feb 15, 2013 - 11:51am PT
There's nothing we can do to avoid it so why have a "Lord of the Flies" party?

So we can have a 'lord of the flies party'!?


I think meteorites are worth a lot of money, I would be trying to scoop as many fragments as possible, maybe donate them to Wang Chung so he can get his dogs to the states or those kids in Peru who were viciously attacked for no reason;)
Reilly

Mountain climber
The Other Monrovia- CA
Feb 15, 2013 - 11:53am PT
Klimmer, cool stamp! Pricey stamp - 40 kopecks in 1957 would have been like a day's wages!
Actually, probably only a half day.
Michelle

Social climber
Toshi's Station, picking up power converters.
Feb 15, 2013 - 11:57am PT
Side note. I was living in Twain Harte when the sound of a HUGE explosion woke us up. Apparently, a meteor flew by and landed somewhere outside of Tuolumne City.
YosemiteSteve

Trad climber
CA
Topic Author's Reply - Feb 15, 2013 - 12:03pm PT
Phil Plait aka The Bad Astronomer has some good info here:

http://www.slate.com/blogs/bad_astronomy.html

"I don’t know how big the meteoroid (the solid part) of this was. The information is too scattered; we’d need the position of the people who took the videos to triangulate and see how far up the debris trail is, for example. I’ll note that people were taking video of the trail for some time before the explosion is heard, which is consistent with it being the shock wave from the passage of the meteoroid through our atmosphere high above the ground. I know a lot of folks will think that’s the sound from the explosion due to impact, but it’s more likely to be the sonic boom from something big moving at multiple times the speed of sound through the air."
TGT

Social climber
So Cal
Feb 15, 2013 - 12:06pm PT
This segment gives a bit better timing on the shock waves.

85 sec from the beginning of the vid to the shock wave arrival and the vid has already started for 15- 30 sec or so At +/- 1000 fps the explosion happened at least 20 mi away. Probably at the first visible sign of the vapor trail.

The smaller explosions are shockwaves from the smaller chunks that were trailing the big one impacting thicker air and breaking up.


Klimmer

Mountain climber
San Diego
Feb 15, 2013 - 12:14pm PT
My question is; would the government or the scientist really tell us the truth if an asteroid was about to hit the earth,
or would they fudge a little to keep the worldwide panic down?



Hey Cosmic,

Someone already knows and has told us already before it even happens ...


My Earth Science students see the excellent NGS DVD: "Asteroids--Deadly Impact" with the late great Dr. Gene Shoemaker, the father of Astrogeology. In the video he is talking about Meteor Crater in Arizona and describing what it would have looked like had we been there, "... you would have seen a mountain coming out of the sky ..." Pretty dramatic description and then they model it in cgi.

At the end of the dvd they say regarding a massive impact to Earth, "it's not a matter of if, but when."


Got that right!




(No, I don't tell my students about the "Secret Forbidden Knowledge" that follows.)


Then there is this description from the Book of Revelation:



Revelation 8:1-10 (KJV)

[1] And when he had opened the seventh seal, there was silence in heaven about the space of half an hour.
[2] And I saw the seven angels which stood before God; and to them were given seven trumpets.
[3] And another angel came and stood at the altar, having a golden censer; and there was given unto him much incense, that he should offer it with the prayers of all saints upon the golden altar which was before the throne.
[4] And the smoke of the incense, which came with the prayers of the saints, ascended up before God out of the angel's hand.
[5] And the angel took the censer, and filled it with fire of the altar, and cast it into the earth: and there were voices, and thunderings, and lightnings, and an earthquake.
[6] And the seven angels which had the seven trumpets prepared themselves to sound.
[7] The first angel sounded, and there followed hail and fire mingled with blood, and they were cast upon the earth: and the third part of trees was burnt up, and all green grass was burnt up.
[8] And the second angel sounded, and as it were a great mountain burning with fire was cast into the sea: and the third part of the sea became blood;
[9] And the third part of the creatures which were in the sea, and had life, died; and the third part of the ships were destroyed.
[10] And the third angel sounded, and there fell a great star from heaven, burning as it were a lamp, and it fell upon the third part of the rivers, and upon the fountains of waters;
[11] And the name of the star is called Wormwood: and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter.
[12] And the fourth angel sounded, and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars; so as the third part of them was darkened, and the day shone not for a third part of it, and the night likewise.
[13] And I beheld, and heard an angel flying through the midst of heaven, saying with a loud voice, Woe, woe, woe, to the inhabiters of the earth by reason of the other voices of the trumpet of the three angels, which are yet to sound!




I can not think of a more accurate description from a vision nearly 2000 years ago of a massive asteroid event slamming into Earth, in Earth's future.




Then we have "Project Wormwood":

http://www.ips.gov.au/IPSHosted/neo/







Ok, everyone have a great day!

:-0

Lol.
TGT

Social climber
So Cal
Feb 15, 2013 - 12:23pm PT
This one was on a perpendicular trajectory to the asteroid.
No relation between the two.

The damage to the Zinc factory was all due to overpressure and an old brick structure. No impact there.
Klimmer

Mountain climber
San Diego
Feb 15, 2013 - 12:28pm PT
Ron,

You sure that's not obsidian with concoidial fracturing?
BJ

climber
Feb 15, 2013 - 12:31pm PT
//This one was on a perpendicular trajectory to the asteroid.
No relation between the two.//

Source? Until I see otherwise, I will continue to believe this is associated debri with DA 14
BJ

climber
Feb 15, 2013 - 12:33pm PT
You sure that's not obsidian with concoidial fracturing?

Density is a sure give-away
Klimmer

Mountain climber
San Diego
Feb 15, 2013 - 12:37pm PT
Carefully cut a small slice. Acid etch and see if it has Widmanstatten pattern, then you absolutely know you have an iron meteorite. Widmanstatten pattern takes millions of years of cooling in space to produce. Doesn't occur on Earth.


http://earthandsolarsystem.wordpress.com/2012/12/20/widmanstatten-patterns/




You have to prove its not slag from Earth. Looks like its already been cut??
climbski2

Mountain climber
Anchorage AK, Reno NV
Feb 15, 2013 - 12:46pm PT
NASA statement on Russian meteor:

"According to NASA scientists, the trajectory of the Russian meteorite was significantly different than the trajectory of the asteroid 2012 DA14, making it a completely unrelated object. Information is still being collected about the Russian meteorite and analysis is preliminary at this point. In videos of the meteor, it is seen to pass from left to right in front of the rising sun, which means it was traveling from north to south. Asteroid DA14's trajectory is in the opposite direction, from south to north."

---

That a larger asteroid might be accompanied by smaller debris doesn't seem too unlikely but is not the case here.

And yeah if you see a bright flash I guess you should go to a door if you really feel compelled to look. Learn something new every day.
Klimmer

Mountain climber
San Diego
Feb 15, 2013 - 12:56pm PT
Just got this from Planetary Resources via email ...


Planetary Resources
http://www.planetaryresources.com/


Hi there -

You may have heard of the meteorite that struck the Russian Chelyabinsk region at about 09:15 local time in the region about 1,500 km (930 miles) east of Moscow in the Ural mountains. The damage caused by the shock wave has been extensive. As reports continue to stream in, the number of people injured has been increasingly steadily and nears 1,000, mostly caused by window glass blown out by the shockwave. The amateur videos and pictures illustrate the power that a small object entering the atmosphere at high speed can have.

Estimated at about 10 tons, and about 2 meters across, this object (called a bolide when they are this bright) streaked through the sky at a speed of 54,000 kph (33,000 mph), and due to the extreme forces of atmospheric entry, broke apart between 30-50 km (18-32 miles) above the ground. Despite the coincident timing, the Russian meteorite has nothing to do with 2012 DA14, as the objects have decidedly different trajectories. A fragment from 2012 DA14 would have been moving from south to north, the path of the meteorite is from northeast to southwest. We will certainly learn more about the nature of this object when fragments from it are recovered and studied in laboratories.

In our previous update, we mentioned that many asteroids pass by Earth with little or no warning. We were not exaggerating. Despite considerable progress in asteroid detection, only about one in ten close-approaching asteroids are known about ahead of time. While not every approaching asteroid may be detected, and with little warning not all can be prevented, in this case a little warning would have prevented many injuries, and quelled the panic that followed.

Today's events, both with 2012 DA14 and the Russian meteorite, are a reminder that our Solar System is a crowded place. Today was unnerving indeed, and scary and unfortunate for those near Chelyabinsk. We don’t know when the next one of these might appear, but we’re working to see it coming!

Be sure to watch the many live events going on today as 2012 DA14 safely passes by, and take the opportunity to learn more about these asteroids that are potentially hazardous, but potentially rich reserves of resources for our future prosperity on Earth and in space.

-Chris Lewicki
President & Chief Asteroid Miner


TwistedCrank

climber
Dingleberry Gulch, Ideeho
Feb 15, 2013 - 01:07pm PT
HOLY COW!

Those Ruskies have words for EVERYTHING!
Majid_S

Mountain climber
Bay Area , California
Feb 15, 2013 - 01:58pm PT
Check out the power of blast 0.30 sec, took the whole roll up door out


http://www.youtube.com/watch?v=1kvHl5Qcnzc
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