... indicated. -- Reviewed by Glenn M. Schmieg, American Journal of Physics 52, 764 (1984) ". .the science is necessarily somewhat speculative, but Corliss's symthesis is based on reputable sources." -- "Corliss, William R. (Compiler). Lightning, Auroras, Nocturnal Lights, and Related Luminous Phenomena" reviwed by Joseph M. Moran, Univ. of Wisconsin in Science Books and Films, Sep/Oct 1983 "Before opening the book, I set certain standards that a volume which treads into dangerous grounds like this must meet. The author scrupulously met, or even exceeded those standards. Each phenomenon is exhaustively documented, with references to scientific journals [. .] and extensive quotations" -- " Book Review: The moon and planets: a catalog of astronomical anomalies ", The Sourcebook Project, 1985., Corliss, W. R., Journal of the Royal Astronomical Society of Canada, Vol. 81, no. 1 (1987), p. 24., 02/1987 ...

... Science Frontiers The Book Strange reports * Bizarre biology * Anomalous archaeology From New Scientist, Nature, Scientific American, etc Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics Science Frontiers The Book Contents Science Frontiers is an indexed compilation of the first 86 issues of our Science Frontiers newsletter . Chapter 1. Archeology: Ancient Engineering Works * Small Artifacts * Epigraphy and Art * Bones and Footprints * Diffusion and Culture. Chapter 2. Astronomy: Planets and Moons * Solar System Debris * Stars * Galaxies and Quasars * Cosmology. Chapter 3. Biology: Humans .* Other Mammals * Birds * Reptiles and Amphibians * Fish * Arthropods * Invertebrates * Plants and Fungi * Microorganisms * Genetics * Origin of Life * Evolution. Chapter 4. Geology: Topography * Geological Anomalies * Stratigraphy * Inner Earth. Chapter 5. Geophysics: Luminous Phenomena* Weather Phenomena * Hydrological Phenomena * Earthquakes * Anomalous Sounds * Atmospheric Optics. Chapter 6. Psychology: Dissociation Phenomena * Hallucinations * Mind - Body Phenomena * Hidden Knowledge * Reincarnation * Information Processing * Psychokinesis. Chapter 7. Chemistry, Physics, Math, Esoterica: Chemistry * Physics * Mathematics. Comments from reviews: "This fun-to-read book may lead some to new scientific solutions through questioning the phenomena presented", Science Books and Films Publishing details: 356 pages, paperback, $18.95, 417 illus., subject index, 1994. 1500+ references, LC 93-92800 ISBN 0-915554-28-3 , 8.5 x 11. Order From:The Sourcebook Project P.O . Box ...

... Science Frontiers ONLINE No. 134: MAR-APR 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Missing Planets In Globular Clusters If you lived on a planet circling a star in a globular cluster, you would see a night sky ablaze with thousands of stars all brighter than the brightest in the earth's sky. This is because globular clusters contain tens of thousands of stars all compressed into 5-25 parsecs -- they are much more tightly packed than those in the Milky Way in general. In fact, though, you would have to observe this blazing sky from a spaceship, because diligent searches have not detected any planets in any of the many globular clusters. In 1999, a team of 24 astronomers used the Hubble Space Telescope to search for planets in the cluster named 47 Tucanae. Their method was to look for dark planets crossing the bright disks of the cluster's stars. After patiently watching 34,000 stars, they came up empty-handed. For some unknown reason, planets never formed around the stars in 47 Tucanae -- or in any other globular clusters checked so far. Are globular clusters in general different from the rest of the Milky Way? Possibly, see below. (Anonymous; "No Globular Planets?" Astronomy, 28:34, October 2000. Anonymous; "Planets Come Up Missing in a Globular Cluster," Sky & Telescope, 104:23, October 2000.) Answer. Globular clusters are peculiar in several additional ways. For example, the ...

... 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, ...

... Science Frontiers ONLINE No. 130: JUL-AUG 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Drifters Sure, there may now be or once have been primitive life forms on Mars, but there does seem to be a serious shortage of carbon-based life forms elsewhere in the universe. In fact, there seems to be a great dearth of small, cool, solid, water-and-carbon-rich planets circling beneficent suns. Can it be that we are looking for extraterrestrial life in the wrong places? Life may have originated and prospered on the multitude of sun-less aggregations of matter drifting through the void, some doubtless quite close to us. Myriad nomadic planets may be roaming our Galaxy free from the clutches of parent stars. Two teams of astronomers think they have detected 25 of these free-floating planets, and say there could be hundreds of millions of them wandering the Milky Way. These free-floaters or "drifters" were created when small clouds of gas and dust coalesced under gravity's urging. If such collapsing clouds were less than 80 times Jupiter's mass, they would not be able to sustain nuclear reactions and become long-lived stars. Many would be-come "brown dwarfs." Still smaller aggregations -- less than 14 Jupiters -- would never shine at all. These would remain warm for a while as they dissipated the gravitational energy that created them. Such small objects would be temporarily detectable by infrared telescopes. Hundreds of such infrared " ...

... 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. 131: SEP-OCT 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Earth Made Mars Different At the June, 2000, meeting of the Society for Scientific Exploration, R.A . Day presented a paper that: Itemized the many important ways n which Mars differs from the other inner planets and moons; Proposed a mechanism that might lave created these stark differences; and Identified the earth as the most likely perpetrator of this celestial catastrophism. Day's abstract follows: Mars has surface features that are not seen on inner planets or moons. These are hemispheric asymmetries, idiosyncratic surface fracturing, localized vulcanism, altitude differences, chains of pits, and the nature of dry river-like channels. Other features include extensive loss of an early atmosphere and liquid water. There is interest in the lower-altitude northern region, with its surface formed after the period of heavy bombardment, as a possible ocean basin. The evidence for this is very sparse: no river deltas, no river networks, little debris at the ends of the catastrophic flow channels. The surface is consistent with the stripping anticipated by a Roche-limit encounter. The low-density Martian moons appear to be unconsolidated material of higher density; they appear to be from low-gravity aggregation of that part of the Martian debris that went into orbit as a short-lived ring. A Roche-limit encounter is invoked as a reasonable hypothesis to explain these features. Earth, Mars' nearest planetary neighbor, may have ...

... What D. radiodurans can provide is a microscopic (and therefore easily portable) factory -- a kind of terra-forming toolkit -- from which any number of products potentially can be derived. Whether it is engineered to reduce metals, produce drugs for ailing astronauts or simply manufacture the polymers necessary for the production of thread, D. radiodurans , one of the world's oldest bacteria, may provide a means of expanding the limits of human imagination beyond the written sci-fi page. (Slotnick, Rebecca Sloan; "Extremophilic Terraforming," American Scientist, 88: 124, 2000.) Comment. Perhaps D. radiodurans is the oldest bacterium on earth. Having arrived eons ago on a bit of cosmic debris. It quickly set up shop on what was then a planet hostile to complex life. Perhaps earth itself has been terraformed! Nature's plan is all so obvious, extremophiles first terraform planets and then Gaia sustains the conditions appropriate for complex life. But where did it all begin? From Science Frontiers #129, MAY-JUNE 2000 . 2000 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. ...

... Science Frontiers ONLINE No. 128: MAR-APR 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Ganymede Magnetic Paradox In December 1995, the Galileo space-craft was injected into orbit around Jupiter, thereby becoming the first known artificial satellite of this giant planet. In the five years that have transpired, Galileo has radioed back voluminous data about Jupiter itself and its four large Calilean satellites. These natural satellites have turned out to be a disparate bunch. Three have iron cores, but Callisto breaks the mold with an unusual core of mixed ice and rock. Europa probably possesses an ocean, and Callisto might also. Only one of Jupiter's large satellites, Ganymede, boasts a magnetic field. In fact, Ganymede is apparently the only satellite in the solar system to display an intrinsic, dipole magnetic field like the earth's . Although Ganymere's magnetic field is like that produced by a permanent bar magnet, its core is much too hot for permanent magnetism. Again like the earth, Ganymede's field is theorized to be generated by the convection of electrically conducting liquid in its core -- a dynamo 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 ...

... 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 Where Is The Maestro?As we learn more and more about the gene complements of our planet's multitudinous life forms, the more it seems that the vaunted genome may not incorporate all of the information necessary to construct a living organism. Despite assurances to the contrary, we must ask if we really know the whole story. These doubts manifest themselves as we see that creatures that are very much alike genetically may be radically different morphologically. In this vein, C. Ventner asserts that all higher vertebrates have roughly the same genes. The animals that result from these re-markedly similar genomes depend upon when specific genes are turned on and off. Ventner says, "We have the same number of genes as cats and dogs, but differently regulated." The genes themselves are supposed to be simply protein factories. Somehow, they are turned on and off (" expressing" themselves) in just the right sequences to help build the target animal. In a far-stretched analogy, the genes are the instruments in an orchestra and the proteins they produce are the notes in a symphony. But where are the symphony's score and its conductor? Very similar orchestras, it seems, can play radically different symphonies given different scores as interpreted by a maestro. Each living thing is likewise a symphony of proteins, each played by the genome at just the right time. But just where are the score -- ...

... Science Frontiers ONLINE No. 132: NOV-DEC 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sandslides: Desert Catastrophes Some of the most important fossil discoveries being made today come from the desolate Gobi Desert -- a most unlikely place for the sudden mass burial of agile animals. Furthermore, the fossils now coming to light in the Gobi sandstones are not only abundant but also preserved with great fidelity. For example, at Ukhaa Tolgod, paleontologists are excavating the planet's largest assemblage of fossil vertebrates from the end of the Cretaceous Period (71-75 million years ago). In 1993, about 1,000 fossils representing 20 species of mammals and reptiles were collected. Amazingly, these bones were not disarticulated, scattered about, or severely worn. It was obvious that the Ukhaa Tolgod animals had been very suddenly engulfed by a "tidal wave" of sand. It was a catastrophic event of some sort. But what kind of catastrophes occur on desolate, riverless deserts? Wind is always blowing sand about and dunes creep along in deserts, but healthy animals easily avoid burial. Of course, there are rare, sudden downpours even on the Gobi. But one would expect this rain to be quickly absorbed by the sand. Intrigued by the evidence of unexpected catastrophism in the Gobi, scientists from the American Museum of Natural History first took a look at Nebraska's strange Sand Hills. These Sand Hills stretch for thousands of square miles, reach heights of 400 feet, and are believed to be of aeolian ...

... Science Frontiers ONLINE No. 129: MAY-JUN 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Anomalous Antiquity of Some Landforms All over the planet, but particularly in Australia, there exist great expanses of land surface that fossils and radiometric dating tell us are tens of millions of years old. This doesn't seem very serious until we learn that, given today's erosion rates, these landforms should be deeply eroded or, more likely, completely erased by the forces of nature. This paradox has long been used by Creationists to challenge geological dating methods. Mainstream geologists do recognize the paradox but have had scant success in resolving it. For example, geologist C.H . Crickmay wrote: Again, one finds all over the world, even high above and far distant from existing waterways, smooth-surfaced and level ground -- including everything from small terraces to broad, flat plains -- much of it still bearing intact a carpet of stream alluvium. Such lands were carved and carpeted, evidently, by running water, even though they are now in places where no stream could possibly run... What is remarkable about them is the perfection with which they have out-lasted the attack of "denudation" for all the time that has passed since they lay at stream level. (The Work of the River, New York, 1974) This paradox of uneroded ancient landforms remains as obdurate as the landforms themselves. (Oard, Michael J.; "Antiquity of Landforms: Objective Evidence ...

... Science Frontiers ONLINE No. 129: MAY-JUN 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Leaky Seas Just as we have been assured that the Greenhouse Effect is melting the ice caps and that rising ocean levels will force us to abandon our coastal cities, we read the following: Within a billion years, our planet could be as dry and barren as Mars, claim geologists in Tokyo. They have calculated that the oceans are leaking water into the Earth's mantle five times as fast as it is being replenished. It is true that ocean water is being drained away at subduction zones where oceanic crustal plates dive under the continental plates; there's a 10,000-mile unsealed crack there. S. Maruyama and colleagues at the Tokyo Institute of Technology estimate that 1.12 billion metric tons of water leak through that crack in the earth's integument every year. Geologists have always assumed that most of this leakage was returned to the oceans through deep-sea vents and volcanic action, but Maruyama calculates that only 0.23 billion metric tons are recovered. The balance is probably absorbed by lawsonite and other minerals forming 100 kilometers below the surface. (Hadfield, Peter; "Leaky Seas," New Scientist, p. 4, September 11, 1999.) Comment. Does this mean we should cease our attempts to stem global warming? From Science Frontiers #129, MAY-JUNE 2000 . 2000 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient ...

... 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 Let There Be Dark!And there was dark. And nobody liked it. Bye and bye, a large gentleman with a grossly damaged liver happened by and helped the dark-immersed denizens of the planet. He showed humans how to make "dark-suckers." The first dark-suckers were made of wood and simple in design. Unfortunately, these primitive models often got out of control and sucked in too much dark. Another early dark sucker was the candle. The black wicks of these models attest to their dark-sucking capabilities. Modern dark suckers, such as the incandescent bulb, are much more efficient. These bulbs become greyer with age revealing how they function to rid the world of dark. (Walke, Ken; "Grey Matter," New Scientist, p. 117, February 24, 2001.) Comment. In his revisionist thinking, Walke exposed our misconceptions about light in reponse to the following question: "The surfaces of the incandescent light bulbs where I work become progressively greyer over time.Why?" Now we know why this is so! (Left) A candle immersed in dark with unactivated wick. (Middle) Activated candle wick sucks in the surrounding dark. (Right) The dark in the vicinity has been fully absorbed on the blackened candle wick. From Science Frontiers #135, MAY-JUN 2001 . 2001 William R. Corliss Other Sites of Interest SIS ...

... Science Frontiers ONLINE No. 128: MAR-APR 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Frozen in Time A map of Antarctica produced in 1997 using data from the Canadian satellite Radarsat has revealed some unexpected geological features at the bottom of the planet. Among these are vast areas of previously unrecognized snow dunes -- all lined up in parallel like the ripples on a stream bed. However, these snow dunes are no ripples. They measure up to 100 kilometers in length with separations of 1-2 kilometers. They are, in fact, called "megadunes." At ground level, though, the snow dunes are not obvious because they are only a few meters high. Since Antarctica is often buffeted by fierce winds, one would naturally think that these snow dunes have an aeolian origin like desert sand dunes. This does not seem the be the case. Comparisons made using recently declassified images taken in the 1960s by U.S . military satellites reveal that the snow dunes have not moved in over 30 years! Some-thing besides wind-driven snow must be helping to sculpt these immense stationary patterns. (Tomlin, Sarah; "Vast Snow Dunes Frozen in Time," Nature, 402:860, 1999.) Comment. The fossil "string dunes" of Australia closely resemble the Antarctic snow megadunes in pattern and size, but of course they are composed of sand. "Megaripples" charted by sonar and shaped by water currents on the ocean floors are also comparable. See ETR3 in Carolina ...

... unusual landforms which for all the world look like large-scale vegetation of some sort or possibly ancient coral, as has also been suggested. Is this really evidence of macro life, past or present, or just another form of unusual geology, which Mars is becoming known for? (Anderson, Paul; "The 'Forests of Mars': Biology or Exotic?" http://geocities.com/erasproject/marsforest.html ( Copy ), April 4, 2001. Cr. D. Phelps.) Comment. Claims of Martian vegetation go back almost a century. The so-called "wave of darkness" that moves toward each Martian polar region with the advent of spring was claimed to be due to greening vegetation. See AMO3 in The Moon and the Planets. From Science Frontiers #136, JUL-AUG 2001 . 2001 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. ...

... Hyakutake's X-rays were announced, a fourth theory of origin was put forth by acknowledged heretics C. Wickramasinghe and F. Hoyle. Comet Hyakutake, they said, was not emitting X-rays itself. Instead, solar X-rays were mirrored in earth's direction by a cloud of very tiny carbon-containing particles released by the comet. Electrons in these nanometer-sized particles acted as if they were free electrons, and these are excellent scatterers of X-rays. Anyone familiar with the writings of Hoyle and Wickramasinghe can guess what these nanometer-sized particles might be: viruses, of course! Said Wickramasinghe: "It all fits in the the idea that there are real viruses in comets and that comets are the agents by which life is brought to planets." (Chown, Marcus; "Do X-ray Comets Shed Carbon?" New Scientist, p. 19, May 11, 1996) From Science Frontiers #106, JUL-AUG 1996 . 1996-2000 William R. Corliss ...

... laboratory experiments suggest a slightly non-symmetric behavior of matter and anti-matter that might explain the dominance of matter in the universe. But it creates a new mystery---why this asymmetry should exist. Distant supernovae have a rise time of 10-15 percent faster than nearby type supernovae. This throws doubt on their use as standard candles, and on the interpretation that the expansion of the universe is accelerating. Interestingly, the amount of the discrepancy is close to the size of the special relativity time dilation factor, gamma. If the cause of the red shift were something other than velocity, then no time dilation factor would be applicable, and this discrepancy would disappear. Evidence for water on Mercury implies a rapid-acting, exogenic water source, consistent with the exploded planet hypothesis expectations. Reasonable escape rates imply that deuterium on Venus is from a relatively recent water source. (Van Flandern, Tom; "Highlights of the Latest EME," Meta Research Bulletin, 8:64, no. 4, 199. Address: P.O . Box 15186, Chevy Chase, MD 20815) Comment. (1 ) Although humans are obviously partial to symmetry, there is no reason why nature must please us by making matter and antimatter symmetrical. 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 ...

... All Issues This Issue Sourcebook Project Sourcebook Subjects A Lurch of Death Two geophysicists, W. Sager and A. Koppers, have plotted 27 ancient pole positions dated between 120 and 30 million years ago. Using rock samples brought up from submerged Pacific sea-mounts, they find that the earth's magnetic poles shifted 15-20-deg about 84 million years ago. The north magnetic pole was not slowly drifting, it was lurching. It took just a couple million years to shift 700 miles or more; that's more than ten times the rate of continental drift. The earth from afar must have seemed to be a disturbed top---on a geological time scale, of course! What could have perturbed the earth? One suggestion blames a sudden shifting of the planet's mass distribution, some sort of subterranean indigestion, like a subducted ocean plate suddenly plunging through into the lower mantle. (Kerr, Richard A.; "Did the Dinosaurs Live on a Topsy-Turvy Earth?" Science, 287:406, 2000.) The biological consequences of such a sudden tilting could have been severe. The event -- known as rapid true polar wander -- may have been accompanied by worldwide volcanic upheavals and reorganization of tectonic plates that would have played havoc with anything living in the Late Cretaceous period, 65 million to 99 million years ago. Although the notion that an asteroid was the immediate cause of dinosaur extinction about 65 million years ago has won wide acceptance, many paleontologists have argued that volcanic activity may have played a role in ...

... 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 Why Intelligent Life Needs Giant Planets The two giant planets, Jupiter and Saturn, are 318 and 95 times more massive than the earth, respectively. Being so weighty they strongly perturb the orbits of comets, deflecting many away from the inner solar system, where we reside. Calculations by G. Wetherill, at the Carnegie Institution, reveal that if Jupiter and Saturn were only 15 times the mass of the earth, the earth would have been devastated every 100,000 years by giant comets, instead of about every 100,000,000 years, as indicated by the geological record. Under such intense bombardment, it would probably have been difficult for advanced life forms to develop. (Croswell, Ken; "Why Intelligent Life Needs Giant Planets," New Scientist, p. 18, October 24, 1992.) Comment. Reasonable as the foregoing assertion sounds, we do not really know what stimulates the development of new life forms. Actually, the fossil record reveals that some biological "radiations" occurred soon after great geological upheavals. That the Jupiter-Saturn "shield" was and is not completely effective is indicated by the heavy debris traffic mentioned above. From Science Frontiers #85, JAN-FEB 1993 . 1993-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 90: Nov-Dec 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A New Class Of Solar System Objects For decades astronomers have suspected and searched for Planet X, a large body beyond Neptune swinging slowly about the sun and gravitationally perturbing Neptune's orbit. Planet X has never been found, but somewhere out there are some pretty hefty bodies, as described by T. Van Flandern: "The discovery of a second miniplanet beyond Neptune, 1993 FW, augments the discovery of 1992 QB1 last fall. Both objects are believed to be in the 200-300-km-diameter range, with magnitudes between 2324, distances at discovery between 40-45 AU, and low inclinations.... Although the discoverers of these two objects hailed them as the first representatives of the elusive 'Kuiper belt' of comets, other theoreticians have confirmed that the line of reasoning leading to the suggestion of such a belt is spurious. That fact, combined with the absence of any comet-like characteristics in these two new objects, their relative size as compared with any other known comet, and their unusually red coloration, seem to make them the first-discovered members of a new class of solar system bodies. Since the searches leading to their discovery have examined only 1.5 out of tens of thousands of square degrees of sky wherein such objects might be discovered, it seems a reasonable conjecture that thousands of additional similar objects will ultimately be found. In short, it appears at this ...

... 85: Jan-Feb 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Heavy traffic in near-earth space That region of outer space near the earth carries a heavier load of flotsam and jetsam than scientists expected. The devastation of the 1908 Tunguska impact in Siberia warns us that this space debris -- meteors, comets, asteroids -- is an active threat. A recent spate of articles paints an ominous future. The earth's retinue of mini-asteroids. "Asteroids as big as houses pass near the Earth 100 times more often than anyone suspected. On an average day, about 50 asteroids measuring at least 10 metres across come closer to the Earth than the Moon, and each year about five such objects may hit the planet." (Second reference below.) These startling data come from D. Rabinowitz and coworkers at the University of Arizona, who have been scanning nearby space with a telescope fitted with supersensitive charge-coupled devices (CCDs). They have picked up astronomical objects that have escaped conventional instruments. Several sources have been suggested for this unexpected, threateningly large population of small asteroids: (1 ) debris hurled earthward from collisions within the asteroid belt located between Mars and Jupiter; (2 ) the breakup of a large object formerly in orbit about the earth; and (3 ) fragments blasted off the moon by impacts of large asteroids there. (Kerr, Richard A.; "Earth Gains a Retinue of Mini-Asteroids," Science, 258: 403, 1992. Also ...

... meteors darting into the earth's upper atmosphere would have speeds less than 260,000 kilometers per hour. Any objects with significantly higher velocities must come outside the solar system. It has, therefore, been unsettling to find that quite a few meteors hit our atmosphere at speeds much higher than 260,000 km/hr. Radar measurements of 160,000 meteors by A. Taylor and colleagues, at a New Zealand site, found that about 1% (1500 meteors) struck the atmosphere with velocities greater than 350,000 km/hr. These speedsters must come from beyond the solar system. The question arising is: Whence all this interstellar debris? One hint comes from the fact that the aliens appear to come from the direction in which the sun and its family of planets are traveling through interstellar space. Evidently, this interstellar medium is far from a vacuum; it is strewn with flotsam and jetsam -- but from what smashed planets, moons, and asteroids? (Samson, Alan; "Radar Traps Visitors from Outer Space," Dominion Sun Times (Wellington), April 25, 1993. (Cr. P. Hassall) From Science Frontiers #90, NOV-DEC 1993 . 1993-2000 William R. Corliss ...

... Issue Sourcebook Project Sourcebook Subjects Early Life Surprisingly Diverse The three life forms sketched below are tiny microorganisms, not the worms they appear to be. They are thought to be bacteria, for they closely resemble modern cyanobacteria. What is most important about these fossilized micro-organisms is that they were found in the Apex chert of Western Australia. The Apex chert is designated Early Archean and assigned an age of 3.465 billion years [Four significant figures!]. It is rare to find any fossils at all in rocks this old, but apparently the Apex chert escaped most of the fossil-destroying metamorphism afflicting most Precambrian formations. Even more remarkable is the diversity of these suspected bacteria. J.W . Schopf reports finding no less than eleven different kinds so far--and our planet was only a few hundred million years old at the time the Apex chert was formed. Schopf's discoveries generate at least three questions: How could life have originated and diversified to such an extent in just a few hundred millions years? Why after such rapid diversification did these microorganisms remain essentially unchanged for the next 3.465 billion years? Such stasis, common in biology, is puzzling. If these microorganisms are really cyanobacteria, they would have released oxygen to the atmosphere. Is the standard assumption that the earth's atmosphere lacked oxygen until 2.2 billion years ago correct? (Schopf, J. William; "Microfossils of the Early Archean Apex Chert: New Evidence of the Antiquity of Life," Science, 260:640, 1993. Also: Pendrick ...

... Science Frontiers ONLINE No. 87: May-Jun 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cosmic Soot And Organic Asteroids Just as we were getting used to carbonaceous chondrites and tarry comets, we have been hit with cosmic soot and organic asteroids. Truly, it seems as if the universe is one vast factory of complex chemicals. This is not a trivial observation, for it betrays a synthesizing, efflorescent cosmos rather than a universe slowly succumbing to the deepfreezing Second Law of Thermodynamics. Any of these soots and tars wafting down upon the surface of a suitable planet might initiate or accelerate life processes. Cosmic soot. A 70-year-old astronomical enigma is the origin of the DIBs (Diffuse Interstellar absorption Bands). These dark absorption bands in stellar spectra have never been correlated with known chemical compounds. Now, L. Allamandola and F. Salama (NASA-Ames) find that the DIBs may be due to polycyclic aromatic hydrocarbons! A more digestible descriptor would be "soot," like that found in automobile exhaust and on your barbecued steak. (Weiss, Peter; "Cosmic Soot Fills Space between the Stars," New Scientist, p. 15, March 13, 1993.) Organic asteroids. Some asteroids are abnormally red. Newly discovered asteroid 5145 Pholus is 3 times brighter at near-infrared wavelengths than it is in the visible portion of the spectrum. The best explanation so far for this redness is that 5145 Pholus is veneered with organic compounds called "tholins." Tholins are synthesized ...