... Science Frontiers ONLINE No. 9: Winter 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Venus and earth: engaged or divorced?Proponents of astronomical catastrophism have made much of the supposed resonance between the earth and Venus, in which Venus rotates exactly four times between the times of its closest approach to earth (inferior conjunction). Astronomers have maintained that the gravitational forces are too slight to force a resonance lock. This has led to speculation that the two planets were once much closer. The most recent measurements of the rotational period of Venus show it to be 243.01 days rather than the 243.16 days for exact resonance. I.I . Shapiro (of MIT) and his colleagues, who made the measurements, wonder whether Venus may be just approaching or just escaping a resonance lock. Whichever the case, the near-resonance is not likely to be a coincidence. (Anonymous; "Venus and Earth: Engaged or Divorced?" Astronomy, 7:58, October 1979.) Comment. If Venus is just escaping resonance lock, how long ago was the lock exact? A few thousand years? And how close were the two planets? Reference. The solar system is full of curious resonances. See ABB4 in our Catalog: The Sun and Solar System Debris. This book is described here . From Science Frontiers #9 , Winter 1979 . 1979-2000 William R. Corliss ...

... !The photographic enhancement of plates taken by the UK Schmidt and Anglo-Australian telescopes has revealed that several normal elliptical galaxies are surrounded by shell-like structures. D.F . Malin and D. Carter report that these envelopes are vast -- up to 180 kiloparsecs in diameter. Furthermore, some galaxies are wrapped in a series of thin shells. Malin and Carter believe that the colossal shells are really thin layers of stars either created by a powerful shock wave during galaxy formation or comprised of a debris layer of old stars blown out of the galaxy during some cataclysmic event. (Malin, David F., and Carter, David; "Giant Shells around Normal Elliptical Galaxies," Nature, 285:643, 1980.) Comment. This article typifies the emergence of "catastrophic astronomy" which contrasts sharply with the older vision of a leisurely evolution of stars and galaxies. From Science Frontiers #12, Fall 1980 . 1980-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 17: Fall 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Shergottites and nakhlites: young and mysterious The shergottites and nakhlites are two types of meteorites that have scientists scratching their heads. Both types have been dated by various radioactive clocks at 1,300 million years or less -- far younger than all other meteorites. Where could such young meteorites have originated? The asteroids and moon's surface are far too old. A current guess is the surface of Mars. There, an impacting meteor could have blasted pieces of young lava sheets in space and thence to earth. The shergottites have a shocked structure and could well have originated in such catastrophism, but the nakhlites show no signs of violence and seem to require a separate explanation. (Anonymous; "Mystery Meteorites May Come from Mars," New Scientist, 91:219, 1981.) From Science Frontiers #17, Fall 1981 . 1981-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 31: Jan-Feb 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Rise Of Astronomical Catastrophism After being ridiculed for well over a century, astronomical catastrophism is now coming into its own. First, there was the admission that a few small craters, like Meteor Crater in Arizona, just might be of meteoric origin; then, more and bigger craters (astroblemes) were recognized; and, recently, the discovery of the iridium-rich layer at the Cretaceious-Tertiary boundary has made the subject very popular, as evidenced by the following three items: A long, very thorough and scientific review of geological and biological changes caused by meteor strikes throughout the earth's history. (McLaren, Digby J.; "Bolides and Biostratigraphy," Geological Society of America, Bulletin, 94:313, 1983.) A shorter, popular version of the above. (McLaren, Digby; "Impacts That Changed the Course of Evolution," New Scientist, 100:588, 1983.) Evidence is growing that the collision of planetary material with the Earth can profoundly affect local geology, and that impacts of very large meteorites may have influenced the evolution of the Earth and the life that exists upon it. This quotation is from the lead-in to the article references below, which also has a nice world map of major impact sites over 1 km in diameter. (Grieve, Richard; "Impact Craters Shape Planet Surfaces," New Scientist, 100:516, 1983 ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Evidence For A Giant Pleistocene Sea Wave On the Hawaiian island of Lanai, limestone-bearing gravel blankets the coastal slopes. Called the Hulopoe Gravel, it now reaches a height of 326 meters above sea level. Taking into account the 1000,000-year age of the gravel and the slow subsidence of the Hawaiian Islands, the deposit probably reached 380 meters when it was first formed. The big question is how it got deposited at such great heights. Highsea stands are rejected by the authors in favor of a single episode of catastrophic waves about 100,000 years ago. Earthquake-generated tidal waves are considered unlikely because of the great heights involved. (The highest tsunami ever recorded in historical times reach ed only 17 meters above sea level.) A great meteor impact or submarine volcanic explosion are good possibilities, but the authors favor a giant submarine landslide on the Hawaiian Ridge, noting that in 1958 a similar event off Alaska produced a wave that reached 524 meters above sea level. (Moore, James G., and Moore, George W.; "Deposit from a Giant Wave on the Island of Lanai, Hawaii, Science, 226:1312, 1984.) From Science Frontiers #37, JAN-FEB 1985 . 1985-2000 William R. Corliss ...

... 400 kilometers in diameter -- asteroid-size. But its orbit (aphelion, 18.9 A.U .; perihelion, 8.5 A.U .) is definitely anomalous for asteroids. One would expect to find only comets in this region of the Solar System. To compound the mystery, Chiron's orbit is unstable. This planetoid was originally somewhere else (no one knows where) and was nudged into its present orbit by a major planet. One group of researchers calculates that Saturn could have been the nudger, and that the event might have happened as recently as 1664!! (Lipscomb, R.; "Chiron," Astronomy, 11:62, March 1983.) Comment. Only a minor bit of extrapolation will carry a proponent of catastrophism from a 1664 nudge of a 400-kilometer body to a much more violent Solar System rearrangement sometime during the past 10,000 years. From Science Frontiers #28, JUL-AUG 1983 . 1983-2000 William R. Corliss ...

... R.A . Muller and M. Davis, at Berkeley, think they have found one. They postulate that the solar system is really a double-star system. Our sun's companion star has only about 0.1 solar mass and is so faintly luminous that we have not found it visually. It does, however, now cruise along its orbit some 2.4 light years away. But it will be back! In fact, it returns every 26 million years to jostle the Oord Cloud of comets that hovers on the fringe of the solar system. This nudging periodically sends a large shower of comets careening around the inner solar system. The earth intercepts one or more of these projectiles each visit and -- bang -- we have new craters and another biological catastrophe. (Anonymous; "A Star Named George," Scientific American, 250:66, April 1984.) Comment, Ho hum! Still another cometary impact scenario. Ignatius Donnelly was pretty convincing in this matter a century ago. From Science Frontiers #33, MAY-JUN 1984 . 1984-2000 William R. Corliss ...

... Subjects The solar-system dust bin For hundreds of thousands of years, miscellaneous rocky debris swirling around the sun has been falling upon the icy wastes of Antarctica. The motion of Antarctica's ice sheet carries these meteorites conveyor-belt fashion out towards the encircling seas. But where Antarctic mountains get in the way, the rocky cargo tends to get concentrated. Several thousand meteorites have already been picked up at these favored spots. In just a few brief summers of searching, these massive finds have posed unexpected questions. Here is a sampling. The terrestrial ages (times since arrival on earth) measure between 1,000 and 700,000 years, implying that the Antarctic ice sheet may be at least 700,000 years old. This is unfortunate for several proposed scenarios of recent catastrophism, which envision an iceless Antarctica. At least 20 amino acids appear in the more than 40 carbonaceous chondrites picked up with sterile equipment. These meteorites are dated as 4.5 billion years old, or 1 billion years older than the earliest terrestrial life found in the rocks. These finds highlight the old question: Did meteorites seed life on earth? The much-publicized "lunar" meteorite, supposedly blasted out of the moon's crust by asteroid impact, thence falling to earth, shows little evidence of mechanical shock. If this meteorite, with a composition so similar to the Apollo samples is not from the moon, where did it come from? (Marvin, Ursula B.; "Extraterrestrials Have Landed on Antarctica," New Scientist, 97:710, 1983 ...

... Second, the meteorite is a breccia, consisting of small chunks cemented together, some of which are pinkish, magnesium-aluminum-rich spinels sometimes seen in lunar rocks but not terrestrial rocks or ordinary meteorites. Anorthosite is also present -- a type of rock found on the earth and moon but not ordinary meteorites. The implication is that ALHA 81005 was blasted off the moon by a comet or big meteorite. It escaped the moon's gravitational field, was captured by the earth, and plunged into the Antarctic snows. (Eberhart, J.; "Early Hints at a Moonish Meteorite," Science News, 123:54, 1983.) Comment. Geologically speaking, the ice and snow of Antarctica are fairly recent. This meteorite may then be evidence of recent astronomical catastrophism that might also have affected the earth. Reference. Anomalous meteorites are cataloged in Section AYE in The Sun and Solar System Debris. A descrption of this book is located here . From Science Frontiers #26, MAR-APR 1983 . 1983-2000 William R. Corliss ...

... Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bone Bed Discovered In Florida A new bond bed has been discovered south of Tampa. Paleontologists say it it is one of the richest fossil deposits ever found in the United States. It has yielded the bones of more than 70 species of animals, birds, and aquatic creatures. About 80% of the bones belong to plains animals, such as camels, horses, mammoths, etc. Bears, wolves, large cats, and a bird with an estimated 30-foot wingspan are also represented. Mixed in with all the land animals are sharks' teeth, turtle shells, and the bones of fresh and salt water fish. The bones are all smashed and jumbled together, as if by some catastrophe. The big question is how bones from such different ecological nitches -- plains, forests, ocean -- came together in the same place. (Armstrong, Carol; "Florida Fossils Puzzle the Experts," Creation Research Society Quarterly, 21:198, 1985.) From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...

... red star. Some dispute these old accounts because today Sirius is white with a bluish tinge, and is classified as a white dwarf. W. Schlosser and W. Bergmann have now found a "new," and apparently independent reference to Sirius' red color. It is in a manuscript of Lombardic origin, which contains the otherwise lost "De Cursu Stellarum" by Gregory of Tours (who lived about 538593 AD). This new source reiterates that Sirius was once a red star, leading Schlosser and Bergmann to speculate as follows: "Thus, Sirius B might well have changed from a red giant to the white dwarf as it appears today. However, the rapidity and smoothness of this transformation are quite unexpected, and its timescale is surprisingly short. Furthermore, no traces of catastrophic effects connected with such an event have ever been found. The only indication that something has happened is the somewhat higher metallicity of Sirius A, believed to have resulted from contamination by the giant's blown-off shell." (Schlosser, Wolfhard, and Bergmann, Werner; "An Early-Medieval Account on the Red Color of Sirius and Its Astrophysical Implications," Nature, 318:45, 1985.) References. See BHT5 in our catalog: Biological Anomalies: Humans I for the surmise that the ancients, especially those of the heroic age, were color-blind! In this issue's PSYCHOLOGY section, we find that the ancients may have been deficient in another, even stranger way. The above-mentioned catalog is described here . From Science Frontiers ...

... Science Frontiers ONLINE No. 61: Jan-Feb 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Celestial Crucible "Catastrophic extinctions caused by impacts would change the rules governing who is most fit, who becomes extinct, and who survives. 'If much of the patterning of life's history is not set by Darwin's slow biotic mechanisms, then I think Darwin is in trouble. Is catastrophic mass extinction a major agent of patterning?' If so, 'impacts are a quirky aspect' of the process." Who is speaking within the single quotes above? S.J . Gould, a proponent of the punctuated equilibrium view of the evolutionary scenario. He added: "' The history of life is enormously more quirky than we imagined.'" In fact, the geological record shows so many quirk-inducing impacts that there is little room left for slow, plodding, uniformitarian evolution of the earth itself, life-in-general, and humanity. Mammals, for example, may not have survived the postulated (but now assumed factual) Cretaceous-Tertiary impact event simply because they were small in size - not smarter. (Kerr, Richard A.; "Huge Impact is Favored K-T Boundary Killer," Science, 242:865, 1988.) Comment. It now seems that Cassius was wrong about the stars when he was lining up Brutus to help assassinate Julius Caesar. And the "celestial" situ ation gets even worse below. From Science Frontiers #61, ...

... Science Frontiers ONLINE No. 53: Sep-Oct 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Meteor-impact winters, magnetic field reversals and tektites "Nuclear winter" is a term now in vogue. And, believe it or not, the rains of tektites discussed below may have been the forerunners of climatic catastrophes similar to the postulated nuclear winters. We shall call them "meteor-impact winters. First, a tad of background: Great meteor impacts and tektite events seem to have occurred nearly simultaneously with deep-cutting biological extinctions and reversals of the earth's magnetic field. Ever since this apparent synchrony was recognized a few decades ago, theorists have been vying in generating scientific scenarios, especially some mechanism that would reverse the earth's magnetic field. New entrants in the lists are R. Muller and D. Morris, two Berkeley physicists. Here is how they see it: "A sufficiently large asteroid or cometary nucleus hitting the Earth lofts enough dust to set off something like a 'nuclear winter.' The cold persists long after the dust settles because of the increased reflectivity of the snow-covered continents. In the course of a few centuries, enough equatorial ocean water is transported to the polar ice caps to drop the sea level about 10 meters and thus reduce the moment of inertia of the solid outer reaches of the Earth (crust and mantle) by a part in a million. 'That doesn't sound like much, Morris told us. 'But when we realized that ...

... Science Frontiers ONLINE No. 59: Sep-Oct 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Did an asteroid impact trigger the ice ages?Asteroids and comets are being blamed these days for more and more of our planet's catastrophism -- biological, meteorological, and geological. What a turnabout in scientific thinking in just a decade. F.T . Kyte et al have now provided additional details on meteoritic debris they first described in 1981. On the floor of the southeast Pacific, about 1400 kilometers west of Cape Horn, about 5 kilometers down, they found high concentrations of iridium in Upper Pliocene sediments about 2.3 million years old. Since the proposed projectile hit in very deep water, no crater was dug out. What did survive is called an "impact melt." This is debris rich in noble metals, such as iridium, and contains particles typical of a low-metal mesosiderite. Some 600 kilometers of the ocean floor received this debris. Kyte and his associates estimate the size of the impacting object at at least 0.5 kilometers in diameter. No biological extinctions are correlated with the 2.3 -million-year date, but there appears to have been a major deterioration of climate at about this time. There was a shift in the marine oxygen isotope records and, more obvious, the creation of the huge loess (sandy) deposits in China. What the impact may have done is to vaporize enough water into the atmosphere to increase the earth's albedo, ...

... of comet showers spread out over a few million years, rather than a single impact per extinction. This short abstract from a Nature article says it all: "If at least some mass extinctions are caused by impacts, why do they extend over intervals of one to three million years and have a partly stepwise character? The solution may be provided by multiple cometary impacts. Astronomical, geological and palaeontological evidence is consistent with a causal connection between comet showers, clusters of impact events and stepwise mass exi tinctions, but it is too early to tell how pervasive this relationship may be." (Hut, Piet, et al; "Comet Showers as a Cause of Mass Extinctions," Nature, 329:118, 1987.) Comment. In other words, the nature of astronomical catastrophism is still up in the air! But, bear in mind that a mere decade ago such a paper would have to look far for a jounal that would publish it. From Science Frontiers #54, NOV-DEC 1987 . 1987-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 66: Nov-Dec 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Drumlins May Record Catastrophic Floods Cross section of a typical drumlin, as figured in CAROLINA BAYS, etc. Drumlins are small, teardrop-shaped hills that occur in large numbers, often aligned in large "fields," in areas thought to have been covered by ice during the Ice Ages. Geologists custom-arily explain drumlins as debris piled up and sculpted by the ice sheets them-selves, despite the fact they look like they might have been shaped by flowing water. As we all know, the word "flood" is an anathema in geology, probably because a provable episode of extensive flooding would lend credence to the Biblical Flood! (Actually, many cultures around the world have similar flood legends.) Canadian geologist J. Shaw is now trying to break out of this philosophical prison. "According to Shaw, heat from the Earth formed huge lakes of meltwater that remained trapped beneath the North American ice sheet. As the sheet began to retreat near the end of the glacial age, the water broke through and flowed in torrents down to the Gulf of Mexico and Atlantic Ocean. While flowing under the ice cap, water would have surged in vast, turbulent sheets that sculpted and scoured drumlins. Each flood lasted until the weight of the ice cap once again shut off the outlet of the covered lake, Shaw says." Shaw goes on to estimate that one large drumlin field in Saskatchewan was created when ...

... Science Frontiers ONLINE No. 73: Jan-Feb 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Asteroid impact or volcanos?The debate over the real cause of the terrestrial catastrophism that occurred at the Cretaceous-Tertiary boundary, some 65 million years ago, grinds on. Some physical scientists claim rather imperiously that the dinosaurs and many other species were done in by the impact of a huge asteroid/meteorite. The worldwide iridium spike is conclusive, they say. Many paleontologists and geologists, however, remain unconvinced and prefer widespread volcanism. We have already covered the various arguments in past issues of Science Frontiers; here, we want to advise our readers that a pair of excellent articles by principals in this debate have appeared in Scientific American. Generally speaking, it seems that the proponents of the impact theory are now listening to the other side. For example, multiple impacts are now proposed to account for evidence of the type introduced below. (Alvarez, Walter, and Asaro, Frank; "An Extraterrestrial Impact," Scientific American, 263:78, October 1990. Also: Courtillot, Vincent E.; "A Volcanic Eruption," Scientific American, 263:85, October 1990.) A spike dulled. The case for a single asteroid/meteorite impact has been weakened by a recent reexamination of the classic exposure of the CretaceousTertiary boundary at Gubbio, Italy. Here, the discovery of an iridium "spike" at the boundary was thought to betoken a sudden, catastrophic, extraterrestrial event. On further ...

... -old fossil leaves have been found within 400 kilometers of the South Pole. (Francis, Jane E.; "Arctic Eden," Natural History, 100:57, January 1991. Also: Peterson, Christian; "Leafing through Antarctica's Balmy Past," New Scientist, p. 20, February 9, 1991.) Comments. Coal beds are also known from Spitzbergen and Antarctica. The vision of dinosaurs roaming polar Edens evokes many questions. If the polar regions were indeed 10-20 C warmer than now, what could have survived at the Equator? The dates given above (3 and 45 million years ago) for polar heat waves are well after the 65million-year demise of the dinosaurs. This suggests that the biosphere recovered very well from the KTB catastrophe. Why, then did the dinosaurs succomb so completely? From Science Frontiers #75, MAY-JUN 1991 . 1991-2000 William R. Corliss ...

... Sourcebook Project Sourcebook Subjects The whale-on-its-tail fossil Near Lompoc, California, is a large deposit of diatomaceous earth, so-called because it is composed almost entirely of countless billions of exquisitely sculptured diatom skeletons. Uniformitarian geologists have steadfastly maintained that such diatomaceous-earth deposits require millions of years to form as the tiny skeletons sink slowly to the sea floor. At Lompoc, however, embedded in the thick layer of diatomaceous earth is the fossil of a large whale apparently standing on its tail. How could this whale fossil have maintained its position and integrity over hundreds of thousands of years as it was buried millimeter by millimeter? Wouldn't the bones have been quickly scattered? Creationists have pointed to this whale as proof that the Lompoc diatomaceous-earth deposit was formed catastrophically, interring the whale almost instantaneously, and burying doctrinaire uniformitarianism at the same time. (Creationists want to "shorten" geological time to fit Biblical schedules.) But was the whale really entombed on its tail? Creationist geologists studied the Lompoc deposit and put a different slant on the story but not on its ending. "Contrary to some reports that have circulated, the 80-90 ft (24-27 m) long fossilised baleen whale found in April 1976 in an inclined position in a diatomite unit in the Miguelito Mine at Lompoc, California, was not buried while 'standing on its tail'. An onsite investigation has revealed that the diatomite unit which entombed the whale is also inclined at the same angle, the whale having been buried in the diatomite unit while both ...

... Science Frontiers ONLINE No. 85: Jan-Feb 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Two Tsumani Tales Only a few years ago astronomical catastrophism was denied as a major factor in geological change. Now one reads everywhere of huge terrestrial impact craters, iridium layers, and tektite deposits. Even so, one necessary consequence of 70% of the large impacts has been neglected until recently: the giant tsunamis and marine incursions that must have swept over the coasts of the continents following impacts at sea. This oversight is now being rectified. 100,000 BP. The South Pacific. A longstanding geological enigma of the New South Wales coastline is the curious distribution of sand dunes. Those headlands less than 40 meters high have lost most of their dunes, leaving only raw, unweathered rock. On the other hand, the higher headlands have retained these dunes. Australians B. Young and T. Bryant hypothesize that a tsunamis 40 meters high swept the lower headlands clean about 100,000 years ago. They can even plot the incoming wave's direction, because a few remnants of the coastal dunes still cling to the southwest corners of the headlands along the NSW coast south of Newcastle. In their scenario, the tsunamis came from the northeast, smashed into the Solomons, southeastern Australia, and northeastern New Zealand. The Great Barrier Reef protected northeastern Australia from the full force of the wave. Young and Bryant favor a Hawaiian landslip as the initiator of the tsunamis, but acknowledge that an asteroid impact could also have done ...

... Science Frontiers ONLINE No. 104: Mar-Apr 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An Antarctic Bone Bed W. Zinsmeister was accustomed to scoff at the idea that the Age of Dinosaurs ended violently with the impact of a giant asteroid some 65 million years ago. He always asked: "Where's the layer of burnt and twisted dinosaur bones?" His certainty was shaken, however, when he began mapping fossil deposits on Seymour Island, Antarctica. He didn't find the dinosaur bones but rather a giant bed of fish bones at least 50 square kilometers in area. Some sort of catastrophe must have annihilated untold millions of fish. And guess what? This great bone bed was deposited directly on top of that layer of extraterrestrial iridium that marks the 65-million-year-old Cretaceous Tertiary boundary at many sites around the world. (Hecht, Jeff; "The Island Where the Fish Had Their Chips," New Scientist, p. 16, November 11, 1995) Cross reference. Bone beds of fish and other creatures are filed under ESB13X2 in Anomalies in Geology. To order this catalog, see here . From Science Frontiers #104, MAR-APR 1996 . 1996-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 135: MAY-JUN 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Nuclear Catastrophe In Paleoindian Times?Introduction. We introduce here a remarkable theory of terrestrial catastrophism that seems to be supported by evidence that is equally remarkable. One of the authors of this theory (RBF) is identified as a nuclear scientist at the Lawrence Berkeley Nuclear Laboratory. The second author (WT) is a consultant. The authors' credentials seem so good that we must take a close look at their extraordinary claims concerning a natural phenomeon that they believe reset radiocarbon clocks in north-central North America and -- potentially -- elsewhere on the planet. We will be most interested in the reception accorded these claims by the scientific community. The claims. In the authors' words: Our research indicates that the entire Great Lakes region (and beyond) was subjected to particle bombardment and a catastrophic nuclear irradiation that produced secondary thermal neutrons from cosmic ray interactions. The neutrons produced unusually large quantities of 239Pu and substantially altered the natural uranium abundances (235U/238U) in artifacts and in other exposed materials including cherts, sediments, and the entire landscape. These neutrons necessarily transmuted residual nitrogen (14N) in the dated charcoals to radiocarbon, thus explaining anomalous dates. Some North American dates may in consequence be as much as 10,000 years too young. So, we are not dealing with a trivial phenomenon! Supporting evidence. Four main categories of supporting evidence are claimed and presented in varying degrees of detail ...

... Science Frontiers ONLINE No. 136: JUL-AUG 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Stealth Catastrophe Recently, as geologists reckon time -- only 800,000 years ago -- Australia, Southeast Asia, and the eastern Indian Ocean were bombarded by untold numbers of small, oddly shaped stones called "tektites." New finds of tektites have expanded the strewn field of these Australasian tektites to include part of China. It now appears that about 30% of the earth's area was subjected to this stony bombardment. It is inescapable that the Australasian-tektite fall was a major event in the earth's history. But where are other signs of this great catastrophe? The present consensus holds that the Australasian tektites originated when a large celestial body slammed into our planet somewhere in Southeast Asia. The energy of the impact splashed droplets of molten rock into the atmosphere, where they were shaped aerodynamically and then fell as tektites. The extent of the immense Australasian-tektite strewn field implies a hard-to-miss crater about 100 kilometers in diameter. Yet, despite the geological recency of the event and despite much geological surveying, no convincing crater has been discovered. (SF#115) So, we have abundant evidence of a terrestrial event encompassing much of the planet but no "smoking crater"! The mystery deepens when one realizes that whatever cataclysm sent the Australian tektites aloft may have been comparable in magnitude to the impact that extinguished the dinosaurs (and other fauna) some 65 million years ...

... Science Frontiers ONLINE No. 131: SEP-OCT 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Planetary Conjunctions that Changed the World On May 17, 2000, five solar-system planets (Mercury, Venus, Mars, Jupiter, Saturn) plus the moon slowly wheeled into a tight 19 arc. It was a notable heavenly conjunction. All manner of natural catastrophes were predicted but failed to materialize. It has been this way down recorded history. Universal deluges were anticipated during similar conjunctions on September 14, 1186, and February 19, 1524, but the weather refused to cooperate with the planets. Humanity survived nicely. This does not mean that historical upheavals are never correlated with planetary conjunctions. If a society believes strongly enough in the power of the stars and planets to shape human destiny, events may be correlated with the heavens. Such was the case in ancient China. In China, the "Mandate of Heaven" concept has been used since ancient times as both a framework for history and a guide to future actions. The basic idea is that Heaven awards ruling power to a sage-king because of his virtue. His descendants remain as Earthly deputies until they become corrupted, whereupon outraged Heaven gives signs in the sky that the Mandate has passed on to a different sage-king to continue the cycle. Three transfers of the Heavenly Man-date marked the beginnings of the Hsu, Shang, and Chou Dynasties. In fact, the tightest grouping of the five visible planets in the period from 3, ...

... of sorts. All well and good, but Ganymede is so small that it should have cooled off billions of years ago thereby freezing its metallic core. So then, whence its magnetic field? One way out of this box it to suppose that about a billion years ago Ganymede was circling Jupiter in an orbit that took it much closer to this ponderous planet. Then, Jupiter's powerful gravitational field would have gently kneaded Ganymede's structure creating what is called "tidal heating," which kept the core liquid and able to generate a magnetic field. (Johnson, Torrence V.; "The Galileo Mission to Jupiter and Its Moons," Scientific American, 282:40, February 2000.) Comment. Sounds good, but there is a puzzle piece missing: What catastrophic event catapulted Ganymede into its pre-sent orbit? It's as big as Mercury! From Science Frontiers #128, MAR-APR 2000 . 1997 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...