Although that's probably only because we're better at spotting them now. Probably been loads of near misses inteh past 100 years we knew nothing about.JBP| said:well these "near misses" seem to be occuring more and more often
the only thing that worries me is that when one does finally hit no one will put out an alert because "it might just miss like the others did"
(allthough now i think about it id rather not know anyway)
As rerferenced in Ghostbusters "The tunguska blast of 1908"Tom said:The last one was in 1908 in Siberia.
There have been no notable impacts in the last 95 years, but history has suggested that large impacts may occur at intervals of 100 years or less (the Tunguska asteroid is estimated to be a once-every-400-years impact).Deadmanwalking said:Go go maths powar!!
At the start of the story it states that the object was estimated to be 30m in diameter, but that later on they discovered that it was actually about 500m in diameter.leggy said:Well the story 2 days ago said 30m. I can't help it if the BBC lies (again).
500m would have been slightly worse. One of those global catastrophe affairs. Saying that, we might have been saved from the abomination that is hollyoaks.
How can you compare Shoemaker-Levy, to an asteroid bound for Earth? They're two different things. Firstly, Jupiter is huge, thus its gravity is very much, more so. Plus S-L was broken up, because of this gravity. You can't compare gravity, with a nuclear explosion tbh (Which i think would do more damage than merely break up a ball of rock/ice, even then, the little bits would probably burn up in the atmosphere).Mofo8 said:The wonderful thing is that we can do absolutely nothing about it... even if we do see one coming. Blasting an approaching comet or asteroid with nukes is probably a bad idea. You'll either end up just making it radioactive, or even worse, splitting it into fragments that are all still heading our way. Anyone remember the broken up Shoemaker-Levy comet striking Jupiter? The first fragment struck Jupiter with kinetic energy equivalent to 225,000 megatons of TNT and created a plume that rose 1000km above the surface. Fragment G struck with a force of 6,000,000 megatons of TNT (which is approximately 600 times the estimated nuclear arsenal of the world). The fireball from it rose 3000km above the surface.
If one of these size of puppies hits the Earth then it's goodbye to most life.
Well that is caus we (the world) are putting up more observation posts, and last time I saw anything about it we were just observing 5 % of everything that might hit earth. We could be minutes away from an Earth hit.JBP| said:well these "near misses" seem to be occuring more and more often