However, the main researcher claims that this method should only be used if there will not be enough time until injury. In any other case, more subtle methods must be used to change the course of the bone
A well-placed nuclear explosion could save humanity from a large asteroid hurtling toward Earth, like in the movies that portrayed the threat. This is according to a new study.
Scientists at the Los Alamos National Laboratory in New Mexico, which was founded as you remember to develop the nuclear bomb that was finally dropped on Hiroshima and Nagasaki in Japan in World War II and which currently belongs to the Department of Energy of the US government, calculated using a computer model that a nuclear bomb of one megaton would be enough to eliminate the threat A 500 meter long asteroid.
This is a bomb 50 times more powerful than those that brought the end of World War II.
"Ultimately a 1 megaton explosion will disrupt the entire large space rock, and if it is an asteroid that crosses the Earth, it will be able to moderate the damage represented by the large asteroid itself," says Bob Weaver, a scientist at Los Alamos in a video released by the laboratory.
The 32D model runs on 1998 thousand processors of the Cielo supercomputer. According to the calculation, the explosion passed over the entire area of the asteroid so that there was no need to dig deep, as Bruce Willis and his fellow astronauts did in the XNUMX movie "Armageddon".
However, Weaver claims that the atomic bombs should be sent to the asteroid only as a last resort, if it is a short warning of several months. The scientists fear negative side effects such as launching many small rocks towards the earth instead of one big rock.
If there is more time to prepare, there are other strategies that could be employed to repel the asteroid. For example, it would be possible to send a robotic spacecraft to meet and move to the side of the dangerous asteroid. The small gravity of the spacecraft will affect the asteroid as the two bodies move through space together. Over months and years, this gravitational pull will pull the asteroid into a different orbit that will not endanger Earth. We know how to carry out such a task. Several spacecraft have already encountered rocks in deep space, including the DAWN spacecraft orbiting the large asteroid Vesta these days, and in 2005, the Japanese spacecraft Yabusa scraped some rock pieces from the asteroid Itokawa and sent them to Earth for analysis. It is also possible to plan for a spaceship to collide with an asteroid and trust that the impact will slightly deviate the asteroid from its orbit. The impact approach won't be as accurate as the drag approach, but according to the researchers it will still be able to accomplish the task under certain circumstances. In 2005, NASA sent a projectile that hit Comet Temple-1 in order to determine its composition.
The discussion about the impact of objects from space on the Earth is not academic. 65 million years ago, a large body struck and wiped out most of the living creatures on Earth, the most famous of which were the dinosaurs. It is only a matter of time until this happens again but this time humanity will be able, at least theoretically, to defend itself.
17 תגובות
If it succeeds, small particles will still fall on us, but I would prefer to make an antibody against the entire asteroid, it is at least half of it so that not all of them will die and I hope that it will succeed with God's help of course!!! And I hope it will work out for you, Israel, in your hands
If it succeeds, small particles will still fall on us, but I would prefer to make an antibody against the entire asteroid, it is at least half of it so that not all of them will die and I hope that it will succeed with God's help of course!!! And I hope it will work out for you, Israel, in your hands
I'm asking besides the electromagnetic radiation that is known to travel at the speed of light
And if a much greater power is used, for example 50 megatons.
I wonder why they used 1 megaton in a model with a chance of being hit by shrapnel
And not a much stronger power.
And another small question, what happens to such radiation in a vacuum
How does it spread? If there is no dust or other material it will stick to
The reaction depends on the time from the moment of discovery to the injury.
If an asteroid that is about to hit Earth is detected at a large enough distance, even hitting a basketball will change its course so that it passes us instead of hitting it.
L.N.C.
You can see stars even in distant galaxies, and I will explain
First of all, you can see individual stars in the clouds revealing that they are outside the Milky Way. The distance of the Magellan clouds is about one hundred and seventy thousand light years.
It is very possible that with the large telescopes we will be able to distinguish individual stars even in the nearest galaxies, for example the Andromeda galaxy which is about two million light years away
In addition, it is possible to distinguish cupid stars, which are stars whose intensity changes even in more distant galaxies.
But under certain conditions when a single star becomes a super nova then the light emitted from it can also reach from a distance of billions of light years. In this case of the super nova the light emitted from the star reaches in intensity the light intensity of the entire galaxy.
Hope you think of us now that we are friendly after all!
Good Day
Sabdarmish Yehuda
The Israeli Astronomical Society
L.N.C
As far as I know you cannot see a single star from the Andromeda Galaxy
It is possible to see infrared at different frequencies, etc.
NASA is working on a telescope that can analyze the star's spectrum and thus check its chemical composition
and know if it can support life
The first step was and still is the Spitzer telescope that found and finds planets in the golden belt.
hello there,
Are you just unsociable, or does no one know the answer. (to my question above).
Why destroy, you can change its trajectory, and turn the asteroid into a space station.
I have a nice idea.
The asteroid must be rotated perpendicular to its orbit at an increasing speed and at a certain moment the centrifugal forces will increase and the asteroid will disintegrate by itself as its parts move away from the impact path.
Even if a small inner core remains from the asteroid, most likely its trajectory will no longer be the original impact trajectory.
The energy for the rotation can be in all kinds of ways, starting with nuclear bombs, solar energy, rocket engines, volatile substances in the asteroid itself, and more.
In the non-spherical asteroids (most asteroids), for example the elongated ones, it will be possible to ensure that the centrifugal force will break it into two or three large parts that will move away from each other and the impact path.
Just thoughts about a cup of Wednesday morning tea(:))
Good Morning
Sabdarmish Yehuda
What about the question of who is sniping at us with these asteroids?
War humor ... a technological solution to the Iranian nuclear ... maybe we will change the trajectory of a reasonable asteroid and accelerate its speed towards Iran ...
Question for general education:
Is the Hubble, Kak, or any existing telescope able to distinguish a single star in the Andromeda galaxy? Or in a single star in a galaxy 100, 500 million light years away or more?
What is the maximum distance with the means available today to distinguish a single star in other galaxies?
Regarding the asteroid, I have a really good and effective suggestion: send the X-ray to the asteroid and with the help of some concentrated prayers, it will divert the asteroid to Kibinimet.
I have a better idea, two hydrogen bombs should be detonated on both sides of the asteroid at the same moment the two shock waves will move against each other and turn the asteroid into a disc and a ring of fragments that will expand at a speed of about 2 kms if the explosion occurs at a distance similar to the distance of Mars from the Earth the probability that two fragments the size of Above KG will hit the Earth will be zero
I know there is a plan to deflect an asteroid to perform a series of conventional explosions.
It is possible to do this with relatively short notice.
Make a backup with several telephones and all this at not high costs.
The principle of operation sounds simple compared to what man has done in space.
There is even an area to carry out Gaza Iran 2012 attempts with short notice or without notice, I am really indifferent to the decision.
Instead of fighting, simply divert all of Gaza towards Egypt with a series of continuous explosions.
On the other hand, if they miscalculate and the asteroid does end up hitting the Earth, it will spread radioactive fallout and that is no better than a direct hit...