does anybody think that a comet will hit earth one day?

Question

i researched and i clicked on a link that said ,yes, by 2039! Pleease!

Answer 1

Yes, it is definitely a probable event.

Answer 2

It's happened before and it could happen again, but anyone who says it will happen by 2039 isn't a legitimate researcher. There's no way to know for certain that it will happen within a given time period unless they have a specific comet or asteroid in mind. If that were the case they would already be working on plans to deflect or destroy it.

[edit]
I just read the answer above about the Apophis asteroid. Maybe I was a little hasty in saying he was not a legitimate researcher, but the research has already been disproven, so there's no need to worry. As I said above, if there were a confirmed threat of a collision, NASA would have its best minds working on a way to prevent it or minimize the damage.

Answer 3

Most of the stuff that zooms past Earth at 30 to 40 kilometers per second will miss our planet simply because the space through which we are all moving is large compared to the size of Earth. Like a brief scatter of water drops on dry concrete: only a small fraction of the concrete will get wet.

Now, if there were somebody out there AIMING asteroids at Earth, it would be an entirely different matter. For example, there's an asteroid without a name, which astronomers call "2001-YB5." If nothing is done to disturb its orbit, it will miss Earth by 8 million kilometers in the year 2020. On the other hand, if some Space Terrorists go out to the asteroid, attach rockets to it, and stop its spin, then they will be able to change the asteroid's path through space so that it hits Earth.

The best time to divert 2001-YB5 is 18h Universal Time on 29 April 2018. The asteroid would need to be pushed in the direction of 15h 24m 20.79s right ascension and +5.4816652 degrees declination by a speed of 83.659 meters per second. If that is done, the asteroid will strike Earth 617.02 days later, on 6 January 2020. The impact would be about the same as forty 100-megaton hydrogen bombs all exploding together.

Kaboom, huh?

For those of you who are adroit with celestial mechanics, here are the current elements of 2001-YB5's orbit:

a = 2.349557177836 au
e = 0.862427471513
i = 5.490700413641 deg
L = 109.3451209415 deg
w = 114.2474452629 deg
T = JD 2453637.57768

Here are the elements of the orbit that 2001-YB5 would enter as the result of the aforementioned delta-vee:

a = 2.34927904922 au
e = 0.86261448066
i = 5.61408792487 deg
L = 106.665251678 deg
w = 116.777537558 deg
T = JD 2457580.637076

To your computers, now, gentlemen. I'm sure that you'll see what I mean.

Answer 4

Undoubtedly. The Earth has been hit many times in it's past by both comets and asteroids. Some are small, and some are large enough to cause major cataclysms on the Earth's surface and atmosphere. One of the theories about the extinction of the dinosaurs is an impact on the Earth of a major asteroid or comet near the Yucatan peninsula.

It's rather foolish of mankind to think that we are immune to same kind of thing happening again.

Why worry about something which you have no control over?
Nobody gets out of this life alive anyway.

Got God?

Answer 5

this HAPPENS OFTEN and doesn't effect us.....

if it was large enough it COULD kill all of us.

the predicted astroid in 2039 called 1999 AN10 or something, has a 1 in something like 140000 chance of hitting us.....(pretty good chances compared to other numbers in space, but still VERY unlikely)

I think in 2039 it will be close enough for us to land a ship (robot) on and we plan to track it for more info....

if its trajectory lines up with earth (it probably won't) then the robot ship can act as a tug boat and push or pull it out of the way....

we are already designing a ship to do the job.

all is well.

Answer 6

The incident you're referring to isn't a comet, it's the Apophis asteroid, and calculations have since been revised to eliminate any possibility of it hitting earth. It will pass rather close by, but will miss us.

Mathematically, when you consider the enormity of time and the multiple collisions earth has already endured, it is a certainty that at some point a comet will strike the planet.

Whether or not that happens within our lifetime or even while humanity is hanging out here is anybody's guess.

Answer 7

It did no longer tremendously much hit earth. It exchange right into somewhat extra away than our moon. Asteroids have orbits only like planets. we've charted that is orbit, and all of us understand the place the earth would be at a definite time so that is rarely in question whether one drawing close us will hit us.

Answer 8

Of course it will happen, might be a comet might be and meteor, or astroid. Either way I wouldn't worry about that 2039 stuff. I think we have awhile to that happens

Answer 9

yes there is also one suppose to hit the year 2028 as well and were suppose to have catastrophes the year 2012 DEC,21 when the planets aligned . something will eventually get us if we don't do it first to our self's

Answer 10

Absitively, posilutely.