Science Frontiers
The Unusual & Unexplained

Strange Science * Bizarre Biophysics * Anomalous astronomy
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About Science Frontiers

Science Frontiers is the bimonthly newsletter providing digests of reports that describe scientific anomalies; that is, those observations and facts that challenge prevailing scientific paradigms. Over 2000 Science Frontiers digests have been published since 1976.

These 2,000+ digests represent only the tip of the proverbial iceberg. The Sourcebook Project, which publishes Science Frontiers, also publishes the Catalog of Anomalies, which delves far more deeply into anomalistics and now extends to sixteen volumes, and covers dozens of disciplines.

Over 14,000 volumes of science journals, including all issues of Nature and Science have been examined for reports on anomalies. In this context, the newsletter Science Frontiers is the appetizer and the Catalog of Anomalies is the main course.


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Compilations of back issues can be found in Science Frontiers: The Book, and original and more detailed reports in the The Sourcebook Project series of books.


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... can be pinned on observer enthusiasm and active imagination. Modern photographs of coronas provide a much more conservative picture of the eclipsed sun. As for all those old observations of colored coronas, aerosols in the atmosphere, perhaps of volcanic origin, could have added the delicate tints reported. No unusual phenomena were involved. Problem solved! (O 'Meara, Stephen James; "Strange Eclipses," Sky & Telescope , 98:116, August 1999.) E.L . Trouvelot's portrait of the total solar eclipse of July 29, 1878 as seen from Wyoming. Note the geometrical symmetry of the spectacular corona. The TLP Myth. There is a long history of Transient Lunar Phenomena (TLPs). Almost as soon as the telescope was invented, observers began seeing flashes of light, color changes, and other luminous phenomena on the moon. Reddish glows around the rims of the craters Aristarchus and Alphonsus have long been accepted as objective scientific observations. The most popular explanation of these color phenomena involves the eruption of gases around the craters. In 1964, in an attempt to better understand TLPs, NASA organized a network of amateur lunar observers with communication links to the Corralitos Observatory in New Mexico. Corralitos possessed a 5-inch reflector equipped with color filters which could checkout network sightings. In almost 3,000 hours of surveillance, no color phenomena were recorded using the Corralitos instruments -- even when the network reported a colored TLP in progress. Are all TLPs therefore illusory? The NASA program certainly suggested that TLPs might be subjective phenomena, perhaps something like the ...
Terms matched: 1  -  Score: 14  -  15 May 2017  -  URL: /sf126/sf126p02.htm
... make it more acceptable. Eclipse photos showing the shifting of star images by the gravitational influence of the eclipsed sun might do the job. On the day of the eclipse, Principe was bedevilled by clouds, and only 2 photographic plates were deemed marginally acceptable. At Sobral, 18 poor plates and 8 better plates were obtained. The problem was that the 18 poor plates yielded a deflection of starlight much smaller than predicted by Relativity, while the 8 better plates produced a much higher value. By adding the 2 plates from Principe to the mix, Eddington managed to come up with a number close to that required by the Theory of Relativity. It was not the clear-cut victory for Einstein that the textbooks proclaim. Yet the spin was on! The New York Times trumpeted: "Lights Askew in the Heavens. Men of Science More or Less Agog; Einstein's Theory Triumphs." Everywhere scientists began to take Relativity more seriously; Einstein's star rose rapidly. Of course, it all turned out well in the end, because we now have many other, more convincing data supporting Relativity. But this happy ending does not subtract from the fact that Eddington let ideology affect his conclusion. Even today, the results from the 1919 eclipse are still proclaimed to be proof of Relativity. (Morton, Oliver; "Science in the Dark," Wall Street Journal, August 11, 1999. Cr. E. Fegert.) From Science Frontiers #126, NOV-DEC 1999 . 1999-2000 William R. Corliss ...
Terms matched: 1  -  Score: 13  -  15 May 2017  -  URL: /sf126/sf126p03.htm
... Comets ACB12 Uranus-Neptune Region Favored as Comet Source ACB13 Cometary Perturbations Suggestive of Planet X ACB14 Rapid Attrition of the Oort Cloud by Molecular Clouds ACB15 Dynamical Improbability of the Oort Cloud ACO OBSERVATIONAL ANOMALIES OF COMETS ACO1 Two-Dimensional Comet Tails ACO2 Cometary Activity Far from Solar Influence ACO3 Comets without Nuclei ACO4 Absence of Meteorites from Comet-Related Showers ACO5 Contraction of Cometary Comas as the Sun is Approached ACO6 Unexplained Abundance of Short-Period Comets ACO7 Persistence of Long-Period Comets Despite Attrition from Molecular Clouds ACO8 Seriality of Cometary Apparitions ACO9 Multiple Tails and Antitails ACO10 Ejection of Spherical Halos ACO11 Correlation of Terrestrial Auroras and the Phenomena of Distant Comets ACO12 Blinking Comets ACO13 The Anomalous Disappearance of Comets ACO14 Anomalous Brightening of Short-Period Comets ACO15 Comet Reflectivities Are Similar to Those of Asteroids ACO16 Some Cometary Light Curves Resemble Those of Asteroids ACO17 New Comets Exhibit Different Brightening Behavior Than Old Comets ACO18 Anomalous Splitting of Comets ACO19 Tail-Wagging Comets ACO20 Cometary Outbursts ACO21 Comet Attrition Rates Imply Youth ACO22 No Ices in Cometary Reflection Spectra ACO23 The Blackness of Cometary Nuclei ACX OCCULTATIONS BY COMETS ACX1 Cometary Tails: Anomalous Occultations of Radio Stars AE ENIGMATIC OBJECTS AEO BRIGHT ENIGMATIC OBJECTS AEO1 Bright Objects near the Sun AEO2 Starlike Objects with Anomalous Motions AEO3 Unexplained Nebulous Objects AEX UNIDENTIFIED OBJECTS TRANSITING THE SUN, MOON, AND PLANETS AEX1 Objects Crossing the Face of the Sun AEX2 Objects Crossing the Moon's Disk AEX3 Unidentified Objects Transiting Jupiter AG THE EARTH AGB ANOMALIES IN THE EARTH'S ROTATION AGB1 Variations in Latitude AGL EARTH-SATELLITE PHENOMENA AGL1 Slow Changes in Satellite Inclination AGL2 Sudden Perturbations of Orbital Elements AGL3 Slow ...
Terms matched: 1  -  Score: 132  -  15 May 2017  -  URL: /cat-astr.htm
... yet been cataloged and published in catalog format. These do not have the alphanumerical labels. GE ELECTROMAGNETIC PHENOMENA IN THE ATMOSPHERE GEB RARE RAINBOWS AND ALLIED SPECTRAL PHENOMENA GEB1 Unusual Multiple Rainbows GEB2 Intersecting Rainbows GEB3 Lunar Rainbows with Offset White Arcs and Bows GEB4 Red Rainbows GEB5 Moving Rainbows... GEB6 Solar Rainbows with Offset White Arcs GEB7 Lunar Rainbows Transforming to Disks GEB8 Radial Streaks Crossing Rainbows GEB9 Rainbows Perturbed by Thunder and Lightning GEB10 Anomalous Fogbows... GEB11 Anomalous Dewbows, Cloud bows, Horizontal Rainbows GEB12 Sandbows GEB13 Rainbows Parallel to the Horizon GEB14 Purple Rainbows GEB15 Supernumerary Rainbows GEB16 Prismatic Pillars at the Foot of the Rainbow GEB17 The Dark Space between Primary and Secondary Rainbows GEB18 Grossly Distorted Rainbows GEB19 Rainbows Dividing Sky Colors GEB20 The Odor of the Rainbow Double White Rainbows Tertiary Rainbows Polarization of Rainbow Light Segments of Greyish Light in the Sky Unexplained Dark Lines in the Sky GEH UNUSUAL HALO DISPLAYS AND CORONAS GEH1 Offset Halos and Anomalous Arcs GEH2 Noncircular Halos GEH3 Extraordinary Mock-Sun and Mock-Moon Displays GEH4 Halos Dividing Sky Colors GEH5 Bishop's Ring... GEH6 Halos of Unusual Radii GEH7 Jumping and Moving Halos GEH8 Kaleidoscopic Suns GEH9 Skewed and Deformed Halo Displays GEH10 Bottlinger's Rings GEH11 Transient Lines Superimposed on Halo Displays GEH12 Optical Effects Where Halo Displays Touch the Horizon GEH13 Close, One-Sided Mock Suns GEH14 Halo Displays Formed by Terrestrial Ice Crystals Anomalous Lunar Coronas Circumzenithal Arc and Black Band GEI OBSERVER-CENTERED PHENOMENA GEI1 Puzzling Features of the Brocken Specter GEI2 Heligenschein GEI3 Rotating Spokes about the Shadow of One's Head Sylvanshine Snow Sparkles GEL LOW-SUN PHENOMENA GEL1 ...
Terms matched: 1  -  Score: 112  -  15 May 2017  -  URL: /cat-geop.htm
... Hallucinations Recovery of Eidetic Imagery through Hypnosis PIK CONSCIOUSNESS Consciousness and Hypnosis Nature of Consciousness Free Will Consciousness and Quantum Mechanics [BHT22] PIM ANOMALIES OF MEMORY Capacity of the Human Brain Emotional Enhancement of Memory Learning and Memory under Anesthesia Hypnosis and Memory Pseudomemory Hypnotic Misrecall Mnemonics Photographic Memory Prenatal Mental Life Inherited Memories False-Memory Syndrome Memory-Processing Bottlenecks Memory Regression [PHP] Cryptonesia PIP ODDITIES OF PERCEPTION Synesthesia Optical Illusions [PIB] PL HALLUCINATIONS AND ILLUSIONS PLD NEAR-DEATH EXPERIENCES Near-Death Experiences NDEs in Non-Threatening Situations Involuntary Memories during Illness and Injury PLF HYPNAGOGIC AND HYPNOPOMPIC ILLUSIONS Hypnagogic Illusions Hypnopompic Illusions PLG HALLUCINATIONS, APPARITIONS, ILLUSIONS Migraine Hallucinations Epileptic Hallucinations Drug-Induced Hallucinations Hallucinations during Sensory Deprivation Conjurable and Manipulatible Hallucinations Spontaneous Hallucinations Fairies, Elementals, etc. Religious Hallucinations (Angels) Psychic Lights (Welsh Revival) UFOs and Their Occupants [X ] Visions of Monsters Illusions of Desired Physical Phenomena (N -Rays) Psychic Doubles or Autoscopic Illusions Negative Hallucinations Collective Hallucinations Auditory Hallucinations Imaginary Companions (" Philip" Phenomenon) Nightmares Auras Hostage Hallucinations Geomagnetism and Hallucinations Hallucinations in Life-Threatening Situations Lilliputian Hallucinations Hypnotism and Color Blindness Illusions of Levitation [PSP] Seance Illusions [PSM, PBA] Indian Rope Trick and Related Magic Tricks Sex-Change Hallucination Ghosts Alien Abductions [X ] Psychic Surgery Missing Time Hallucination Duplication in Time Men-in-Black Black helicopters [X ] Pyramid Power PLD OUT-OF-THE-BODY EXPERIENCES Out-of-the-Body Experiences (OBEs) OBEs under Morbid Conditions PLS HALLUCINATIONS STIMULATED BY MECHANICAL DEVICES Visual Hallucinations Stimulated by Crystal Balls and ...
Terms matched: 1  -  Score: 26  -  15 May 2017  -  URL: /cat-psyc.htm
... BHX14 Manipulation of Human Behavior by Viruses BHX15 "Ultimate" Parasites of Humans BHX16 The Human-Gaia Interface BHX17 Human Degeneracy and the Man-Machine Interface Dolphin Dangers Plants That Induce Sleep The Ubiquitous Human-Bacterium Interface Ancient Viral Invaders BI INVERTEBRATES Titles not yet posted BM MAMMALS BMA EXTERNAL APPEARANCE AND MORPHOLOGY BMA1 Mammalian Morphological Parallelisms: Convergence and Mimicry BMA2 Limits on the Variability of Domestic Animals BMA3 Unusually Divergent Mammal Populations BMA4 Hybrids and Mosaics BMA5 Mirror-Image Twins in Mammals BMA6 Atavism and Reversion in Mammals BMA7 Neoteny in Mammals BMA8 Albino Populations of Mammals BMA9 Unusual Mammalian Sex Ratios BMA10 Wolves Defy Bergmann's Law BMA11 Unusual Sexual Dimorphism in Mammals BMA12 Zebra Stripe Reversal BMA13 The Existence of Zebras with Vivid Stripes BMA14 Land-Mammal Hairlessness BMA15 The Greening of Sloths BMA16 Polar-Bear Hairs as Light Pipes BMA17 Sudden Blanching of Mammal Hair BMA18 Mammalian Callosities BMA19 Skin Masks BMA20 Extensive Scarification of the Skin BMA21 Microwave Emission from Mammals BMA22 Bat Faces: Remarkably Varied and Bizarre BMA23 Nictitating Membranes in Mammals BMA24 Eye Oddities among the Mammals BMA25 The Inheritance of Eye Injuries BMA26 Ear, Mouth, and Nose Valves in Mammals BMA27 Displaced Nostrils BMA28 Unexpected Functions of Noses and Nostrils BMA29 Nasal Features with Unknown Functions BMA30 Curious Teeth and Dentitions BMA31 Marching Teeth BMA32 Microbats and Megabats Have Strikingly Different Dentitions BMA33 "Unperfection" in Strap-Toothed Whales BMA34 Questionable Utility of Mammalian Tusks BMA35 Toothlessness in Mammals BMA36 Questionable Utility of Some Horns and Antlers BMA37 Horns Correlated with Toes and Stomachs BMA38 Horn and Antler Curiosities BMA39 Remarkable, Usually Paralleled, Innovations in Mammalian Extremities BMA40 Parallelisms in Mammalian Extremities BMA41 The Existence of ...
Terms matched: 1  -  Score: 16  -  15 May 2017  -  URL: /cat-biol.htm
... EQA6 Seismic Reflectors EQD SEISMIC DETECTION OF LARGE SCALE DISCONTINUITIES, ZONES, STRUCTURES EQD1 Velocity Discontinuities EQD2 Channels and Zones EQD3 Structural Anomalies of the Inner Core EQD4 Anomalies Associated with Mantle Convection Cells EQQ ANOMALOUS SEISMIC SIGNALS EQQ1 Deep-Focus Earthquakes ES STRATIGRAPHIC ANOMALIES ESA EMBEDDED ACCRETION STRUCTURES ESA1 Cylindrical Structures in Rock and Unconsolidated Sediments ESA2 Spherical Aggregates ESA3 Concretions ESA4 Small Fused Structures ESA5 Geodes ESA6 Orbicules ESB ANOMALOUS BIOLOGICAL PHENOMENA IN GEOLOGY ESB1 Biological Extinction Events ESB2 Biological Explosion Events ESB3 Recent Vegetation and Shallow Water Fossils at Great Depths ESB4 Long-Buried, Undecomposed Organic Matter ESB5 Living and Fossil Marine Organisms Found Far Inland ESB6 Living Organisms and Recent Fossils at Very High Altitudes ESB7 Growth Structures on Marine Organisms and Their Fossils ESB8 Animals Entombed in Rocks ESB9 Living Organisms at Great Depths ESB10 Fossils of Warm-Climate, Light Dependent Organisms Found in the Polar Regions ESB11 Time-Wise Anomalous Fossils ESB12 Skipping in the Fossil Record ESB13 "Special" Nature of Fossils ESC ANOMALOUS CHEMICAL PHENOMENA IN GEOLOGY ESC1 Chemical Anomalies in the Stratigraphic Record ESC2 Chemical Anomalies in Igneous and Metamorphic Rocks ESC3 Surface Films on Rocks ESC4 Spontaneous, Rapid, Exothermic Reactions in Nature ESC5 Death Gulches ESC6 Violent Lake Turnovers ESC7 Petrifactions and Lignifications ESC8 Geological Effects of Natural Combustion ESC9 Rocks and Sediments of Controverted Origins ESC10 Unusual Growth Structures ESC11 Possible Extraterrestrial Origin of Ocean Water ESC12 Chemical Anomalies of Lakes and Ground Water ESC13 Petroleum Anomalies ESC14 Coal Anomalies ESC15 Outgassing of Radon-222 ESC16 Methane Anomalies ESD DEPOSITS OF REMARKABLE SIZE ESD1 Bone Caves, Bone Caches,... ESD2 Bone Beds, Fish Beds,... ESD3 Sedimentary Deposits of Exceptional ...
Terms matched: 1  -  Score: 15  -  15 May 2017  -  URL: /cat-geol.htm
... New World Chinese Customs of the Maya Aztec Backgammon Africans in South America Board-Game diffusion MAD BIOCHEMISTRY Maori Blood-Group Anomalies Blood Types and Diffusion: Global Anomalies Zuni Blood-Type Enigma DNA: Out-of-Africa Theory DNA and New World Settlement Polynesian DNA in New World DNA and Human-Diffusion Anomalies Basque DNA Differences Polynesia/Easter Island Biochemical Anomalies Japanese DNA in South America African DNA in China DNA and Polynesian Origins MAF FOSSILS, MUMMIES, CORPSES American Extinction of Megafauna Denied Grooving of Teeth Anomalously Ancient Fossils: Pliocene, Holocene, Miocene, etc. [BHE] Mummy Anomalies Teeth and Implications for the Settlement of Americas Calaveras Skull Controversy Minnesota Man/Loess Man/ Nebraska Man/Los Angeles Man/Vero Beach Man, etc. Caucasian Mummies in China Vast Ancient Cemeteries Light-Skinned Mummies in New Guinea Ice Man Tattoos Humerus (Olecranon) Perforation Neanderthal Fossils in the New World? Wyoming Mystery Mummy Evidence of Ancient Cannibalism Kennewick Man and Similar Recent Discoveries Rats in New Zealand That Suggest Pre-Maori Occupants Teeth and Ainu Origin Controversial Guadeloupe Skeleton Fossils Supporting the Multiregional Theory Ancient Horse-Cribbing Polynesian Fossils in the New World South American Fossils in New Zealand Babirusa Bones in Canada Humans and Domesticated Ground Sloths Trepanation Yuha Burial Problem Human Hair at the Orogrande Site Pygmy Skeletons Chinese Fossils in Australia Giant Skeletons [BHE] Neanderthal Fossils and Speech Santa Barbara Fossils Taber Skeleton (Canada) Eskimo Fossils in France Blond Mummies in Peru Red-Haired Mummies in Nevada [MAA] Santa Rosa Mammoths and Hearths MAK CULTURE Precocious Number Systems and Mathematics Agriculture and Culture Decline Navigational Techniques ...
Terms matched: 1  -  Score: 6  -  15 May 2017  -  URL: /cat-arch.htm
... Science Frontiers ONLINE No. 123: May-Jun 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Flashy Fish The Amazonian angel fish, popular in aquariums, employs a Star Wars-like weapon in battling invaders of its territory. The flat sides and silvery scales of this species make highly efficient mirrors. These fish have learned how to maneuver their bodies so as to reflect bright flashes of sunlight directly into the eyes of their opponents. These intense bursts of light are often enough to burst blood vessels in the eyes of the target fish -- sometimes even stunning it. Pairs of Amazonian angel fish have been observed flitting about in "light-fights" as they attempt to zap each other and avoid optical counterattacks. (Anonymous; Creation/Ex Nihilo , 21:7 , March-May 1999. Attributed to Sydney Morning Herald , October 13, 1998.) Comments. The use of light as an offensive weapon is reminiscent of those dolphins that stun their prey with powerful pulses of sound. Creation/Ex Nihilo is an Australian Creationist publication. It is easy to see why creationists focus on these lightfighting fish. Their weapons required the coevolution of flat sides, silvery scales, and the complex instinctive behavior needed for orienting their bodies relative to both the sun and their opponents. From Science Frontiers #123, MAY-JUN 1999 . 1999-2000 William R. Corliss ...
Terms matched: 1  -  Score: 42  -  15 May 2017  -  URL: /sf123/sf123p09.htm
... Science Frontiers ONLINE No. 124: Jul-Aug 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Forest Rings No! These rings have nothing to do with crop circles, nor with fairy rings either. Forest rings are best appreciated from a light plane. Hunters and hikers in Canada's boreal forests walk right across the rings without noticing them. But from the air, they are striking apparitions. Most are less than 300 meters in diameter, but the largest is 2 kilometers across. Basically, they are annuli of sparse growth amid dense stands of trees both inside and outside the rings. The barren rings -- some 2,000 have been found -- appear light-colored against the dark green of the healthy forest growth. Why don't trees grow well within the rings, and why the neat circles? At first expanding rings of fungus infection were suspected, something perhaps like the fungus that creates those fairy rings on lawns. But no fungus has been found on the tree roots. One curious fact was discovered about the soil where tree growth is sparse. The soil constituting the rings is poorly drained and is depressed 1-2 meters below the surrounding healthy forest. These circular depressions support mainly peat and tamaracks. But what causes these ring-shaped depressions? One theory holds that the rings are the suface expressions of diamond-bearing kimberlite pipes, like those in South Africa. A few prospectors are already staking diamond-mine claims! Another theory supposes that the rings are created by huge ...
Terms matched: 1  -  Score: 24  -  15 May 2017  -  URL: /sf124/sf124p11.htm
... Science Frontiers ONLINE No. 122: Mar-Apr 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Now We Know Why!Circa 1950, physicist E. Fermi observed that our galaxy measures about 100,000 light years across, and that a spacefaring race could cross it in only 100 million years, even if their starships poked along at only 1/1 ,000 the speed of light. Since our galaxy is about 10 billion years old, the very reasonable question is: If other intelligences (ETs) exist in our galaxy, why haven't they found us by now? Actually, many ETs from many different cultures should be stopping by frequently. J. Annis, an astrophysicist at Fermilab, believes he can explain the apparent dearth of ETs. The problem is gamma-ray bursts (GRBs). They are so powerful that they sterilize those galaxies in which they occur. Presently, GRBs occur in each galaxy about once every 100 million years, but theory suggests that they were much more frequent in the past. As a consequence, by the time intelligent life evolves anywhere and figures out how to build spaceships, they are zapped by a GRB. Perhaps some do begin exploration of their galaxy, but they don't get very far. (Matthews, Robert; "Sorry, We'll Be Late," New Scientist, p. 16, January 23, 1999.) Comment. Any reader of science fiction can come up with other explanations: (1 ) ETs have been ...
Terms matched: 1  -  Score: 24  -  15 May 2017  -  URL: /sf122/sf122p17.htm
... Science Frontiers ONLINE No. 127: Jan-Feb 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ants Like Microwaves Back in 1990, an item in SF was titled "Ants Like Amps." (SF#60/160) The subject then was the strange mesmerizing effect electrical equipment has on ants. They dote on airport runway lights, household electrical meters, and in particular electrical relays, where they congregate en masse. Now, a decade later, we discover that they are also not adverse to exploring microwave ovens -- even when they are turned on! We cannot explain the attraction of electrical relays, but we do know how ants survive in humming microwave ovens. It is because the microwaves inside the oven form standing waves. Energy is high in some areas -- ants would fry there -- and weak elsewhere. Ants seem to be able to find these lowenergy refuges and survive very nicely -- perhaps on the food you were planning to consume! (Anonymous; "Them!" New Scientist, p. 109, July 31, 1999. Comment. You can map you microwave's standing waves by filling a flat tray with marshmallows. A pattern of toasted and untoasted marshmallows will appear post-zapping. From Science Frontiers #127, JAN-FEB 2000 . 1997 William R. Corliss ...
Terms matched: 1  -  Score: 15  -  15 May 2017  -  URL: /sf127/sf127p07.htm
... Science Frontiers ONLINE No. 125: Sep-Oct 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Leonid Luminosity Puzzle Around November 17 every year, meteorwatchers strain to see the Leonids dart through the night sky. The Leonids are meteors that radiate from a point in the constellation Leo. The millimeter-size bits of debris that create this annual light show are tiny fragments discarded by the comet Temple-Tuttle that burn up high in the atmosphere. Astronomers are secure and comfortable with this explanation of the mid-November spectacle. Perhaps they shouldn't be. In November 1998, an intriguing anomaly cropped up -- way up, 120 miles up! Leonids were seen to burn up at this altitude where there is not enough atmosphere to create the friction required to vaporize the space debris. Perhaps the cometary fragments from comet Temple-Tuttle are unusually volatile. Perhaps there is something else going on at the outer fringes of the atmosphere. Who knows? (Witze, Alexandra; "Scientists Gain Insights into Meteors," Northwest Florida Daily News, May 27, 1999. Cr. B. Reid) Comments. Sometimes, comets flare up so far from the sun that solar heating is negligible. This poorly understood phenomenon may be related to the highaltitude flare-ups of the Leonids. Some people claim they can sometimes hear meteors hiss as they streak through the sky at altitudes so high that there is not enough air to convey sound! Such "electrophonic sounds" may have an electromagnetic origin; that is, some ...
Terms matched: 1  -  Score: 14  -  15 May 2017  -  URL: /sf125/sf125p03.htm
... Science Frontiers ONLINE No. 127: Jan-Feb 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Aristarchus blushes for clementine In SF#126, we digested an article from Sky & Telescope entitled "The TLP Myth." The strong implication was that TLPs (Transient Lunar Phenomena) are observer illusions. Anomalists instinctively bristle at such dogmatic assertions. Especially with TLPs, because hundreds of light flashes and color changes have been seen on the moon by reliable astronomers ever since Galileo made his first telescope. A satisfying rebuke to the TLP naysayers was recently delivered by JPL's B. Buratti at the October 1999 meeting of the American Astronomical Society in Padua, Italy. Her specific TLP occurred on April 23, 1994. At that time, about one hundred amateur astronomers noticed a 40-minute darkening near the edge of the bright lunar crater Aristarchus. Happily, when this hundred-fold "illusion" took place, the lunar satellite Clementine was mapping the area around Aristarchus. Defying the dogmatists, Buratti scrutinized the Clementine data again. Sure enough, Aristarchus had really turned redder after the TLP reported by the amateur astronomers. Such lunar color changes are readily explained as due to eruptions of pockets of gases trapped below the moon's surface. These blow-outs can spread colored dust over areas extensive enough to be visible through the small telescopes used by amateur astronomers. (Seife, Charles; "Moon Mystery Emerges from the X-Files," New Scientist, p. 22, October 23, 1999.) ...
Terms matched: 1  -  Score: 13  -  15 May 2017  -  URL: /sf127/sf127p04.htm
... Tunguska's initiating phenomenon. In this open-minded review, two little-publicized but highly pertinent Tunguska observations were discussed. The catastrophe had five centers of destruction rather than one. At the Tunguska site are many large root stumps, not yet rotted away, that cannot be linked to any pits associated with their origin. These stumps were apparently blown out of the ground and hurled dozens of meters from where they stood prior to the Event. Next to be considered were the unappreciated similarities between the Tunguska Event and the 1883 explosion of Krakatoa. The four bright nights in Europe and western Asia, straddling 30 June 1908, are remimiscent of the 1883 Krakatoa outburst, they ask for transient scatterers in the upper atmosphere, above 500 km, at heights which only methane and hydrogen are light enough to reach in sufficient quantity. Fast-rising natural gas has been repeatedly detected in recent years, in the form of "mystery clouds"---by airplane pilots---and indirectly as pockmarks on 6% of the sea floor. In other words, Tunguska might well have been---not an extraterrestrial impact---but a simultaneous outburst and detonation of natural gas from five closely spaced vents. The report continues with pro-andcon discussions, concluding that this outrageous hypothesis cannot be dismissed! (Kundt, Wolfgang; "Tunguska 2001," Meteorite, 7:25, November 2001.) Mirror matter is another new candidate as Tunguska's cause. This and other radical hypotheses, like the methane blowouts mentioned above, cannot be rejected ...
Terms matched: 1  -  Score: 13  -  15 May 2017  -  URL: /sf139/sf139p12.htm
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