/sci/ - Science & Math

Not OP, but why can't you just have a massive fuckin' asteroid or something smash off part of the Earth?

What would earth do in the event of an imminent impact event?

It's raining men... wait no those are fucking giant rocks holy fuck.. Fuck!

>A series of explosions in the skies of Russia’s Urals region, reportedly caused by a meteor shower,

http://rt.com/news/meteorite-crash-urals-chelyabinsk-283/

Great video how would you like to see this on the drive home?
https://www.youtube.com/watch?feature=player_embedded&v=7c-0iwBEswE

Another great vid
http://www.youtube.com/watch?v=b0cRHsApzt8&feature=youtu.be

Another video of a giant rock passing through our atmosphere lol.


http://www.youtube.com/watch?feature=player_embedded&v=KG3mhbUHgUU#!

So, I was in the toilet have a shit, and I thought of something.
How do we ever get hit by Asteroids or Meteorites?
I mean, if this is how the solar system moves - http://www.youtube.com/watch?v=zBlAGGzup48&feature=player_detailpage#t=5s - then how the hell do we get hit by anything? Specially with all the gravity pulling everything this way and that.
To me, It just seems that to be hit by a Asteroid or Meteorite is incredibly unlikely unless it was aimed at us.

So, I was in the toilet have a shit, and I thought of something.
How do we ever get hit by Asteroids or Meteorites?
I mean, if this is how the solar system moves - http://www.youtube.com/watch?v=zBlAGGzup48&feature=player_detailpage#t=5s - then how the hell do we get hit by anything? Specially with all the gravity pulling everything this way and that.
To me, It just seems that to be hit by a Asteroid or Meteorite is incredibly unlikely unless it was aimed at us.

An asteroid, with a diameter of 2km, will hit the earth in 10 years. How would /sci/ save our blue planet?

Please you're my only hope on this extra credit assignment. Please work out if possible also.

Find all relative minimum or maximum values, if they exist, of each function over the indicated interval.

f(x) = x^3 + x^2 - x + 1; [-2, 1/2]

What if our.. universe. Outer space. Is just an atom or particle of something much bigger?

What if the atoms we know, are the massive universes of even tinier instances?

Discuss.

>>3778937

>what purpose would a cty on mars accomplish other than to permanently funnel resources off of earth?

A backup of modern technological civilization, and more importantly our own species, in the event of a global catastrophe that results in the extinction of all humans on Earth (or the collapse of modern technological civilization).

We're actually struck by asteroids all the time. Typically they're small and either burn up in the atmosphere or land someplace uninhabited. But sometimes, they're not small. We call those events 'mass extinctions'. It's what wiped out the dinosaurs, and we're overdue for another.

> Goodbye NASA.

Goodbye Humanity.

An Asteroid is going to pass closer than the moon on the 27th, in three days. The problem? IT WAS JUST DISCOVERED TWO DAYS AGO!

http://en.wikipedia.org/wiki/2011_MD

http://news.discovery.com/space/visualizing-asteroid-2011-md-zip-past-earth-animation-110624.html

do we humans have any true defense against extinction level asteroids? thoughts anyone I am losing sleep over this

please excuse any misuse of terms here

If an asteroid/meteorite/comet (I don't know if there's a difference between them but basically a body of rock which penetrates the earth's atmosphere causing considerable material damage to the earth's surface and life forms inhabiting it)

were to approach Earth (and its size was sufficient to create craters the likes of which are visible in the middle east and eurasia..

when would it be visible to us? How long would it be visible for (ie what sort of speed would it be moving at)

would it be like the legend of Zelda: Majora's Mask where the moon was visible and progressively got larger each day as it drew nearer?

Or would it give off so much heat that prior to impact everything nearby would be burnt?

Would it give off a visible tail of combusting gases so it looked like a shooting star?

What would a 500,000 kg asteroid do to the earth, travailing at 25 km/s?

IE. How devastating would this be compared to, say, the asteroid that hit over Siberia in 1908?

http://www.telegraph.co.uk/science/space/7916088/Giant-asteroid-heading-for-Earth-in-2182.html

Oh, hi.