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There is one known asteroid which has some slight probability of colliding with the Earth. (There are no doubt many things on a collision course with Earth of which we are blissfully unaware.)

This asteroid is called Apophis. It is a space rock which will pass close to Earth on Friday, April 13, 2029. Apophis will not hit the Earth on that pass, but the worry is that there will be some gravitational perturbation that might cause Apophis to come closer than expected on Friday, April 13, 2037. Current calculations indicate that the chance of a collision is about one chance in 40,000.

There are other rocks in space that will occasionally come close. Someday, one of them will hit us.

We don't know when.

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15y ago
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4mo ago

There are systems in place to track asteroids and assess their potential impact on Earth. If an asteroid were predicted to be on a collision course with the U.S., authorities would work to coordinate plans for mitigating the impact. Options could include deflecting the asteroid's path or evacuating affected areas depending on the size and trajectory of the asteroid.

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Q: Asteroid headed towards U.S.
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What are the methods to avoid collision of asteroid of 50metres with earth?

You cannot "avoid" a collision; if the asteroid is headed this way, it will hit. They aren't steerable. Give us another 50 years or so, and perhaps we would be able to prevent it.


How might the occultation of a star by an asteroid tell us weather the asteroid has an atmosohere?

If there is an atmosphere, the light will gradually dim as the asteroid approaches the asteroid.


Is there any dwarf stars headed for earth?

The Earth is currently headed away from the nearest dwarf star and won't start heading back towards it until about the beginning of July. However, there's no danger of a collision any time soon; we've been orbiting it like this for about five billion years. (The nearest dwarf star is, of course, the Sun.) There are other dwarf stars "headed towards" Earth in the sense that they're getting closer to us, but again, there's no danger of a collision in the foreseeable future; none of them are headed directly towards us, and the distances involved are so large compared to the relative speeds that the Earth will have become uninhabitable long before any of them could get here even if they were headed directly at us.


How close does an asteroid have to be to Earth to fall into our planet?

Its not only a question of distance but a question of speed too. The Momentum of the asteroid is the right parameter to calculate before deciding if earth's gravity will pull it away from its trajectory (unless coming directly towards us) and make it plunge towards us.Thus we need these parameters before answering this question: 1-Speed of the asteroid 2-Mass of the asteroid ( momentum = Mass X Speed) (Gravitational force = Mass X g) 3- Direction of the asteroid 4-The least important is the distance from earth. To simplify all, it's not so direct as you think.


Which US executive department is not headed by a secretary?

The US Department of Justice (DOJ or Justice Department) is headed by the Attorney General.


In WWII who headed the US Army and who headed the US Navy on the Pacific front?

US Army was led by Douglas MacArthur / US Navy was led by Chester Nimitz .


Who is the US Executive Branch headed by?

The President.


Is headed by the president of US?

The Executive Branch


When will an asteroid crash into the Earth and kill us all?

No one knows.


Where would an asteroid hit in the US?

No telling. It could hit anywhere.


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You don't. If a large enough asteroid is going to hit us that will destroy life on earth there is nothing that can be done. Hollywood story's to the contrary.


What branch is headed by the president of the US?

The Executive Branch