Large rock hits Earth and explodes...
...there's a lot of large rocks (called asteroids or comets if they're mixed with water) in space. What have I missed?
(and yes, I've read a great deal about the Tunguska event).
As for this supposed 13,000 year old satellite, if it's perigee is only 134 miles up then it sure as heck wouldn't have remained in orbit for long. Skylab's perigee was 254 miles up and atmospheric drag was enough to bring it down after six years in orbit.
Granted, the apogee is vastly different, but I'd expect that 13,000 years of that particular orbit would be unsustainable.
Bloody conjecturists!!
Well the difference between being an air burst explosion and an actual impact isn't really that significant is it. But you do appear to see conspiracies wherever you look, no matter the evidence.
Why would an asteroid air burst?
How is it unexplained?
It's not, you need to watch Terma, the second episode.
Hora it because its like you it gets a bit hot then boom it explodes everywhere*
* I simplified the science a little 😉
Breaking up violently entering the atmosphere? Trapped water or other materials getting really hot, friction, instability. If you paste your question into google some good links come up
Why would an asteroid air burst?
Because all the ice holding it together evaporated during approach to sun and re-entry, plus the stress involved in colliding with an atmosphere could conceivably shatter it.
If you paste your question into google some good links come up
Thats burning up upon entry/going through the earths atmosphere. We are talking just above ground level explosion.
Like is someone says "moon landings were, faked, they never happened" the best reponse is to immediately hit them as hard as possible square in the face
Buzz, take it easy, you can't punch every conspiracy theorist in the face!
http://theweek.com/speedreads/449681/watch-72yearold-buzz-aldrin-punch-jerk-face-calling-liar
This seems like a good place to post:
http://www.theguardian.com/science/2013/nov/06/chelyabinsk-meteor-russia
an exploding meteor - recently
Thats burning up upon entry/going through the earths atmosphere. We are talking just above ground level explosion.
Any parameters for "Just above ground level" 5m? 50m? 500m? It could jsut be that most would do that if they flew a little further
The forces exerted on something coming that fast through the atmosphere (having previously been in a vacuum) mean that a large number of things could happen and the chance of it all staying neatly in one pieces are probably very slim
I'm no expert on this phenomenon... does exploding stuff from space completely vaporize, or are there traceable fragments?
Thats burning up upon entry/going through the earths atmosphere. We are talking just above ground level explosion
I don't understand your issue with the concept.
I'm no expert on this phenomenon... does exploding stuff from space completely vaporize, or are there traceable fragments?
You're unlikely to like this answer but "it depends".
Depends on a lot of factors, some of the main ones being it's composition and angle of entry.
In the case of the Chelyabinsk 'ite, there's several lumps left over.
Why would an asteroid air burst?
Same reason stones explode in a fire. Outside gets really hot, tries to expand, inside still cold, stress, bang.
As for Tunguska - it's *believed* to be a meteorite by everyone, so that doesn't count as unexplained I'm afraid. There's nothing that's inconsistent with a meteorite afaik.
That '20 Facts' link is amazing.
http://theweek.com/speedreads/449681/watch-72yearold-buzz-aldrin-punch-jerk-face-calling-liar
[b]YES![/b]
As for Tunguska - it's *believed* to be a meteorite by everyone, so that doesn't count as unexplained I'm afraid.
Aye, in my defence, I 1st heard about it in the 80s and didn't realize so much research had been done in the meantime, if it's confirmed Lake Cheko is an impact crater it will help cement the theory.
That '20 Facts' link is amazing.
Yes it's compelling "evidence" isn't it?
[quote> http://www.theguardian.com/science/2013/nov/06/chelyabinsk-meteor-russia
an exploding meteor - recently
That's what I wanted. Russian dash footage!
funnily enough i asked about this a while back http://singletrackworld.com/forum/topic/ever-heard-of-the-black-knight-satellite
i reckon it's just something on the lens tbh 😉
I said the same thing about the orbit back then, too!
^on your link it looks like screwed up black electrians tape 😀
Anyway Hora, I'm pretty sure what you were trying to google was 'black prince'.
Disappointing no one has posted a picture of the Black Knight, down to head and torso, circling the earth and threatening other satellites by demanding they continue the fight.
I guess that Jamie guys gone forever?
jivehoneyjive - Member
I'm no expert on this phenomenon... does exploding stuff from space completely vaporize, or are there traceable fragments?
As someone said, depends. Tens of thousands of objects enter our atmosphere every single day, most are the size of sand grains, or fine gravel. If they're stony chondrites, they're most likely to burn up, unless they're really large, in which case they can explode, and the larger fragments hit the ground.
There are stony-iron meteorites, pallasites and mesosiderites, both of which pretty rare, and there are iron meteorites, which can be found fairly often, especially on open smooth deserts and salt-flats, and snow/ice-fields.
High-quality swords were sometimes forged from meteoric iron, and much treasured.
Really big, ***-off sized meteors, and small asteroidal bodies also hit the earth, and leave sodding great marks on the surface, like the Arizona crater, or the Chicxulub impact site on the Yucatán Peninsula, which is 25,450 sq.km.
And was probably the main culprit behind the last dinosaur extinction, although that was a fairly drawn-out process.
Photo of a baby Robin would have been more appropriate Mol
Mystery solved:


