Armageddon by CGI!

[Kan' Sharuminar]

Pretty fun video to watch, but that asteroid did look a bit...moon-sized.

Regardless, we all know it'll be stopped by Bruce Willis drilling 800ft into it's crust and dropping one nuke in.

 

[The Last Conformist]

Pretty fun video to watch, but that asteroid did look a bit...moon-sized.

While it's much bigger than anything that's ever likely to hit us, it's very small compared to the Moon; perhaps a thousandth of the mass.

 

[Shadylookin]

the object looked like it was a small planet or moon as opposed to a meteorite or asteroid. Either way nothing of that scale is projected to hit earth anytime soon. of course it was graphically well done

 

[Babbler]

So ones been playing too much FFVII...

 

[The Last Conformist]

the object looked like it was a small planet or moon as opposed to a meteorite or asteroid.

This is a somewhat mystifying statement, as big moons and big asteroids tend to look like small planets, whereas small moons and small asteroids tend to look like irregular chunks of stone.

 

[Kozmos]

I afraid cloud and is gettin it on with little miss to busy to call on holy and the lifestream.

Yeah I think that's from some videogame.

Is that realistic anyway? Wouldnt the lava in the 'pot' just float off into space? And how the hell lava came out of an Asteroid?

 

[The Last Conformist]

Wouldnt the lava in the 'pot' just float off into space?

Things just don't "float off" into space, thanks to a nifty little thing called gravity. However, some stuff will be thrown out into interplanetary space.

And how the hell lava came out of an Asteroid?

A lot of the kinetic energy gets converted to heat, which melts whatever of the asteroid isn't vaporized, along with plenty of terrestrial rock.

 

[MobBoss]

Its not really Japanese unless it has an evil guy saying "all your base belong to us" or "set us up the bomb".

 

[Kan' Sharuminar]

Its not really Japanese unless it has an evil guy saying "all your base belong to us" or "set us up the bomb".

That would make a brilliant edit.

Things just don't "float off" into space, thanks to a nifty little thing called gravity. However, some stuff will be thrown out into interplanetary space.

In the video, the asteroid impact spewed a huge amount a vast distance (relatively ) into space, how far would it have to go before it broke free of Earth's gravity, out of interest?

 

[The Last Conformist]

That would make a brilliant edit.



In the video, the asteroid impact spewed a huge amount a vast distance (relatively ) into space, how far would it have to go before it broke free of Earth's gravity, out of interest?

We-ell, stuff never "break free" from gravity due to distance. What matters is ejection speed - if it's thrown away with a velocity of 11km/s it won't fall back to Earth.

Some stuff will be thrown many Earth radii into space before falling back.

 

[Kan' Sharuminar]

Makes perfect and obvious sense. Cheers for the reply TLC.

 

[Pokurcz]

There should have been a similar scar on the oposite side op the earth from where the seismic waves would converge and create a enormous volcanic eruption.

But it was very pretty.

Some 7km/s is enough for an object not to fall down again and to reach orbit as a satelite. 11km/s is escape velocity.

 

[Kozmos]

Things just don't "float off" into space, thanks to a nifty little thing called gravity. However, some stuff will be thrown out into interplanetary space.
A lot of the kinetic energy gets converted to heat, which melts whatever of the asteroid isn't vaporized, along with plenty of terrestrial rock.

Thanks I'm not really great at physics I'll stick to computers and weapons systems

 

[The Last Conformist]

Some 7km/s is enough for an object not to fall down again and to reach orbit as a satelite. 11km/s is escape velocity.

As was discussed in another thread here not long ago, that only works if the object receives an second impulse in the upper reaches of its path to change its trajectory to one that doesn't cross the Earth's surface.

Now course, with all the stuff flying around from an impact like the one here discussed, it's quite possible for two ejecta to collide and put one into orbit.

 

[Riesstiu IV]

So ones been playing too much FFVII...

I'm not the only one who thought of that.

So if an object that size were to collide with earth would that make our planet completely dead and devoid of life. It looked the oceans vaporized within hours of impact. How comparable would it be to past asteroid collisions that have caused mass extinction?

 

[Kan' Sharuminar]

I'm not the only one who thought of that.

So if an object that size were to collide with earth would that make our planet completely dead and devoid of life. How comparable would it be to past asteroid collisions that have caused mass extinction?

Mass-Extinction Events

The biggest one being the Permian-Triassic Extinction Event, which is the closest we got to having everything wiped out. Life, however seems to have an uncanny ability to hang on.

 

[Yeeek]

On another note, i don't think the greatest threat to Earth in the near futur is an event of this kind. I can see mankind as its downfall.

 

[Riesstiu IV]

@kan - According to the The Last Conformist, the object in the scenario was 300km - 500km. the Permian-Triassic extinction event, which was the most devastating mass extinction on earth was probably caused by an object around 50km slamming into earth.

That's a massive difference in size. By the end of the video, earth looked essentially like Mercury. There was no atmosphere and no bodies of water to sustain life, and not to mention a huge scar revealing our planet's mantle. That seems like a permanent death sentence for even the most adaptable lifeforms.

I wonder how large and fast an object would have to be in order to physically tear apart the earth in multiple pieces.

 

[Kan' Sharuminar]

@kan - According to the The Last Conformist, the object in the scenario was 300km - 500km. the Permian-Triassic extinction event, which was the most devastating mass extinction on earth was probably caused by an object around 50km slamming into earth.

That's a massive difference in size. By the end of the video, earth looked essentially like Mercury. There was no atmosphere and no bodies of water to sustain life, and not to mention a huge scar revealing our planet's mantle.

Aye, I got that. Was just thowing in what I knew what was the big extinction events.

AFAIK, there is no comparable asteroid impact.

 

[Chaos_BF1942]

Cool video ^_^

If there was a big rock heading toward the Earth I would head to the area of impact with a baseball mit (and a boat if needed) and try to catch the meteorite.