Science & Technology
This morning I was thumbing through a newly arrived book: Comet/Asteroid Impacts and Human Society, published by the eminent scientific publishing house, Springer, edited by Peter T. Bobrowsky and Hans Rickman. This book is a collection of scientific papers presented at a workshop under the aegis of the International Council for Science. In the introduction, we read:
The International Council for Science recently recognized that the societal implications (social, cultural, political and economic) of a comet/asteroid impact on Earth warrants an immediate consideration by all countries in the world.Wow! You think? You mean it's not just us here at SOTT (and a few others on the net) who are keeping track of the increasing number of Fireballs and Meteorites that suggest we are passing through rather dangerous areas of space, or that maybe Something Wicked This Way Comes?
Yes, it seems so. In the chapter entitled "Social Perspectives on Comet/Asteroid Imact (CAI) Hazards: Technocratic Authority and the Geography of Social Vulnerability" we read:
Until quite recently, research into comet and asteroid hazards was focused on establishing the scale and scope of past impacts, credible estimates of their recurrence, and models for physical impact scenarios. ... CAI hazards have moved well beyond the realm of ungrounded speculation and apocalyptic visions. The results represent more than just new findings. They revolutionize, or are about to revolutionize, some basic understandings about the Earth, its history, biological evolution and future. Although human life has had a tiny place in the story so far, our longer term fate seems to be challenged by these forces and may be decided by them.No kidding.
In a chapter entitled "Social Science and Near-Earth Objects: an Inventory of Issues", we read:
It would have been ridiculous, not too long ago, to admit openly that you were thinking about asteroids and comets slamming into the Earth. Such events could mean the end of the world as we know it - TEOTWAWKI as millenialists call it - and that kind of talk is often ridiculed. ...I located the General's comments and they are now in the SOTT database. It seems that the above is not all the general said. In fact, he states quite unequivocally:
Respectable people are pondering the issues. For example, S. Pete Worden, who is a Brigadier General in the US Air Force and Deputy Director for Command and Control Headquarters at the Pentagon, has said that he believes "we should pay more attention to the 'Tunguska-class' objects - 100 meter or so objects which can strike up to several times per century with the destructiveness of a nuclear weapon."
I can show people evidence of real strikes inflicting local and regional damage less than a century ago. Even more compelling are the frequent kiloton-level detonations our early warning satellites see in the earth's atmosphere. ... Within the United States space community there is a growing concern over "space situational awareness."The general was writing back in 2000. "Less than a century ago." That would be after 1900. He said that there were "real strikes inflicting local and regional damage" since 1900?!
Did I miss something? Did all of us miss something?
The main body of the crater appears in the upper right of this panorama, with the far side of the crater lying about 800 meters (half a mile) away. Bracketing that part of the view are two promontories on the crater's rim at either side of Duck Bay.
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| ©NASA/JPL-Caltech/Cornell University |
Comment: Look at that! An asteroid is having a close encounter with the Earth and a spy satellite might hit the Earth, which no one is sure what kind of materials it contains, yet harmful as reported. Interesting that SOTT has carried a few editorials, very recently, on the subject of threats to Earth from space debris:
Wars, Pestilence and Witches
Cosmic Turkey Shoot
The Hazard to Civilization from Fireballs and Comets
New Light on the Black Death: The Cosmic Connection
For years, researchers have observed swirling dust clouds around systems called recurring novas, which periodically explode. New images of a distant nova have now overturned astronomers' long-standing assumption that the dust originates in the blasts.
Within the United States space community there is a growing concern over "space situational awareness." We are beginning to understand that it is essential to identify and track virtually everything in earth orbit. Some of these objects, down to a few centimeters in size, present a potential threat to commercial and civil space operations such as the International Space Station.
What then should we do? What role should the US Government, and specifically the US DoD play in what everyone agrees is an international concern?
The satellite, which no longer can be controlled, could contain hazardous materials, and it is unknown where on the planet it might come down, they said. The officials spoke on condition of anonymity because the information is classified as secret. It was not clear how long ago the satellite lost power, or under what circumstances.
The HiRISE camera on NASA's Mars Reconnaissance Orbiter, the most powerful camera to orbit another planet, can see 20-inch-diameter features while flying at about 7,500 mph between 155 and 196 miles above the Martian surface. HiRISE is giving researchers eye-opening new views of wind-driven Mars geology.
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| ©Unknown |
| "HiRISE keeps showing interesting things about terrains that I expected to be uninteresting," said HiRISE principal investigator Alfred McEwen of the UA's Lunar and Planetary Laboratory. |
Methane stands out among various alternative fuels when its profusion and availability are considered. However, the lack of an effective, economic and safe on-board storage system is one of the major technical barriers preventing methane-driven automobiles from competing with the traditional ones, say the study authors.
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| ©Unknown |










Comment: 'Highly reliable' source might be something of a stretch, considering the people involved with this project. Fascinating, though, how much attention this is getting and the spin being put on it - even Bill Gates is being tied into it - now why would that be happening?