The artist is an illustration of a potentially hazardous asteroid on the way to the Ground.
If you have ever had to clean from the rain gutters on your roof, please note that It is the dirt that you are throwing come out of the room.
In the new book, “the Cosmic Influence: Understanding the Threat to Earth from Asteroids and Comets,” by Andrew May, (Icon Books), which provides an overview of the potential risks that we will one day be the face of the near-Earth objects (NEOs), noting that, on a smaller scale, the items will fall to the Earth from outer space, it is a daily occurrence.
“On an average day, some 100 tons of meteor dust falls to the earth,” says May. “One of the best places to find it is on non-porous surfaces, such as rooftops of rome and the goths . . . The sludge in your gutter which will almost certainly contain a number of particles that came from outer space.”
Dust and particles out of the space, however, is not the planet and its inhabitants are in mortal danger. Asteroids like the one that made the dinosaurs extinct are of concern.
The 124-mile Chicxulub crater near mexico’s Yucatan Peninsula, was formed 66 million years ago, when an object is about 69 km) across slammed into the area of the room. The resulting fire, and dust, the latter of which is covered with the atmosphere of the Earth, the blocking of the sun — and in the end killed off the dinosaurs.
We were to be hit by a similar object to that of today, and the results will be similar.
“The devastation that would be so much greater than anything in human experience that it is hard to imagine,” says May. “If the impact occurred in the ocean, the water is said to boil. If it was in the country, with vast territories would be ravaged by firestorms. The dust thrown up by a Chicxulub-sized impact would be to prevent the sunlight reaches the Earth’s surface for months, maybe even years to come.”
The good news, however, is that the odds of an object hitting the Earth in our lives is close to zero.
The Torino Scale, is of the opinion that the size of These, and they are more likely to hit Earth in the next hundred years, on a risk scale of 1 to 10.
At this time, in the next century, there is a danger-free of charge.
“There is not a well-known object that has a Torino rating is even as high as 1,” says May. “For all we know, it is either too small to cause any damage, if there is no chance that it will collide with the Earth in the next hundred years.”
This is not always the case, however. As recently as 2004, it is an object, it was found that it was all of a sudden Also the number of 4, which means that there is a good chance of contact, which would result in unprecedented destruction.
When scientists are faced with a 350-meter asteroid in the year, it has been calculated that greater than a 1 percent chance that it would collide with the Earth in 2029. Due to its size, which would have led to an explosion in the “thousand-megaton class.” (For comparison, it May be that the writing of the nuclear bombs detonated over Hiroshima and Nagasaki were around 0.02 million tonnes a piece.)
Fortunately, the calculations will be refined in the course and exclusion from the impact,” says May.
However, while the risk of a planet-crushing asteroid is currently at zero, into the room swirls with small objects, while it is not a threat to the human race, can still do real damage.
In fact, they have already made.
On the 30th of June, 1908, he saw the “biggest cosmic impact in the history as “a small, rocky asteroid or a small comet,” at a later time is estimated to be between 30 feet and 70 feet, has exploded on to the “sparsely populated Tunguska River valley in Siberia.”
The location was fortunate, as the blast, a thousand times more powerful than the bombs used at Hiroshima and Nagasaki, and killed no one.
“If the Tunguska object has entered the Earth’s atmosphere, there was an explosion on the order of 10 to 15 megatonnes — that is typical of the Cold War, a nuclear weapon,” says May. “The most obvious effect was to be burned and flattened trees — 80 million of them, out to a radius of 30 kilometers around Tunguska in the ‘ground zero.’ “
You can trot out a scientist named Gerrit Verschuur, saying that “the estimates of the number of deaths that would be caused by a Tunguska-like event in a densely populated area . . . set up as many as 5 million people.”
That being said, the consequences of the crash of a small, not-planet-destroying NEO and not all of them are negative, such as facebook, can provide vital resources for our planet, and it may have already been done.
Is rates, Verschuur, who wrote in 1996, “with A dozen or so of huge comets carry water and organic molecules for the delivery of all of the soil, water, and biomass.” The same can be true for some asteroids, and meteors.
Possible to write, in fact, that there is a “substantial part” of the Earth, water, and biological organisms was the same way.
He points out that a meteorite that landed in Australia in 1969 was found to have “at least 15 different types of amino acids, as well as a significant amount of water is about 10 per cent, of its weight.”
“The effects are . . . were far more numerous in the early history of the Earth,” he writes. “So it’s not unreasonable to say that they have spent a lot of the resources that are necessary for the formation and development of life.”
In view of the fact that a NEO collision with the Earth, it would be more likely to destroy life than create it, in fact, the United States, continuously monitors the atmosphere, and to prepare for a possible intervention.
NASA is constantly facing the sky with the large telescopes of the Arizona and Hawaii. However, even with this defense, it has its risks.
In February 2013, astronomers have identified an asteroid, she was baptized 367943 Duende, which is to pass close to the Earth, but not face to face.
Some scholars have thought that an asteroid would hit us, in spite of the scientists’ assurance that it is not unusual. If you have an enormous meteor explodes in the sky over Chelyabinsk, Russia, that is, where all the skeptics felt vindicated.
However, the scientists are wrong about the Duende. The meteorite, which exploded, as it turned out, it was totally different and that they didn’t notice it, because it came from the direction of the sun, the only be above the horizon in the daytime, when the telescopes couldn’t see it.”
“This is a blind spot surrounding the sun is a constant irritation of the NEO hunters,” says May. “They just have to hope that the ‘hide all’ there is to it affects us all.”
Even though there is no way to defend themselves against an object, that is, we will never see it coming, like a NEO, it must be seen to be a direct route to the Earth, and there are options for the world’s defense. Once again, they are all high risk.
An asteroid can be destroyed by the detonation of a nuclear weapon, but many of the resulting fragments would continue along the same trajectory, thus making the blowback as well as potentially damaging as avoid a hit.
For this reason, scientists have, it would be much more likely to try out to make way for the object to throw it out of orbit altogether.
The NEO would immediately be pushed out of lane or speed change. Neither the pipe nor the actual rate of interest that would have been. Anything that is significantly different from object to object, of course, prevent it from making contact.The key word there is “considerable.”
“The NEO is large enough for us to worry about it, it will take much more than what we are used to in order to push it into the area,” says May.
“1 kilometer of rock to be more than a billion tons or something of that of 10,000 aircraft carriers. How are we going to have to push it in to get a new job, even if it’s only a small amount of money?”
The answer takes us back to the nuclear option.
Hydrogen-bomb pioneer Edward Teller suggested that, in this scenario, the site of a nuclear explosive device on the object itself, as if the force of the explosion would propel it out of its orbit. Unfortunately, this would require that, “a spacecraft has to match speeds with the asteroid and the earth.”
That is, it would take years, and will allow the project to be open to all sorts of complications.
Others have suggested that the explosion of the device, in the vicinity of the object, then it would have the same effect. But, in view of the danger, and that the dispatch of a nuclear unit in space, would be breaking several international treaties, the use of this method is that it is unlikely.
However, it will throw the object out of its orbit, it is not necessary to have a nuclear device if we were able to engineer a spacecraft, or any other gas to break up immediately.
When NASA sent a probe into a passing comet in 2005, and it was to be sold, not to be redirected. However, the speed is reached, that is, the change in the comet’s orbit by 0.00005 millimeter per second, as well as lending credibility to the policy, if necessary.
Luckily for us, this is probably academic, as previously mentioned, if there is a risk of an NEO that are large enough to have significant damage to the Earth in our lifetime is virtually zero.
Unless, of course, is that we are losing out in the sun.
This article was originally published in the New York Post.