posted on Oct, 13 2012 @ 01:17 AM
You know, that this is just more proof of a sobering reality. Something this big, can come in to our inner solar system, Most of them from the
direction of our Sun, and we get no clue until almost a week before it could possibly be on a trajectory that can hit the Earth.
Not to be a fear mongerer, but we are just not prepared to deal with something like this , in that amount of time. If Apophis was going to be a
threat, then look at the time we would have to put together some kind of defensive plan, but here, all you could do, once the orbital specs were
zeroed down to where it would hit on Earth, would be to get the hell away from that place for at least 200 miles, or if near the coast, get yourself
inland and at a high elevation.
You cannot compare this to the Flagstaff, Arizona crater, since that was an Iron, and less than 3% of meteors that make it through our atmosphere are
these. They punch big holes and if they come in at azimuth angles, make it through the atmosphere like it was not there.
The danger of Rocks (chondrites) around this size, is that they usually detonate in the atmosphere because they cannot take the stress like an iron
can. If a large chondrite makes it through most of the atmosphere and detonates in the low atmosphere, say less than say 20 miles up, then we could
be in for a Tanguska type event, where the entire fireball and shock wave of the explosion makes it to the ground, causing massive damage. This is the
same type of effect that we design into air-burst weapons, because they inflict much more damage to surrounding area because a ground detonation and
crater wind up re-directing much of the energy force upward.
If you are aware, this kind of discovery envelope has been fairly consistent over the past 20 years, as large, damaging asteroids that have passed
between the orbit of the Earth and Moon, have had very short warning periods.
We desperately need and REQUIRE a global technical effort to respond to this kind of threat, because soon, one of these flying mountains is going to
have "To: Earth" labeled on it, and we can do very little about it. As it stands right now, we are overdue for one of these hits, and I know all of
us would like to know that there is a reasonable contingency available to deal with it, if we can.