... Science Frontiers ONLINE No. 20: Mar-Apr 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Most Peculiar Cloud Arch July 12, 1980. Strait of Gibraltar. "At 1825 GMT whilst the vessel was transiting the Strait of Gibraltar, a line of low cloud was observed in an otherwise cloudless sky, see sketch. The cloud was in the form of an arc in an east-west line, reaching the surface approximately 2 n. mile ahead and astern of the vessel. Visibility under the cloud was about 10 n. mile in the north-south direction and 2 n. mile to the east and west. Once the vessel reached the point where the cloud touched the surface, the visibility was reduced to approximately 1.5 n. mile. Whilst the vessel was passing the cloud, the barograph trace fell almost vertically and both the air and sea temperatures dropped several degrees." (Shepherd, F.; "Cloud," Marine Observer, 51:107, 1981.) Comment. This is just one more mysterious cloud arch, but on a very small scale. What bizarre meteorological conditions create such strange structures? Reference. Other unusual cloud phenomena may be found in Section GWC in our Catalog: Tornados, Dark Days. For more information on this book, visit: here . A curious cloud arch in the Strait of Gibralta. The ends terminated in the ocean at points 4 miles apart. From Science Frontiers #20, MAR-APR 1982 . 1982-2000 William R ...

... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mystery Plumes And Clouds Over Soviet Territory Following the famous mystery cloud of April 9, 1984 (SF#38), the authors of the original article in Science collected additional observations and now have this to say: "Our conclusion is that original estimated positions were in error. Additional data, primarily from Van den Berg, place the event between the Kuriles and Sakhalin. The altitude of the center of the halo at the maximum observed size is estimated to have been greater than 200 miles, and the diameter of the halo is estimated to have been at least 380 miles. It seems unlikely that a groundbased explosion could produce this kind of effect. It is surprising to us that no official data have been provided by government agencies and that such a significant observation from a region of demonstrated military sensitivity was, and still remains, a mystery." (McKenna, Daniel L., and Walker, Daniel A.; "Mystery Cloud: Additional Observations," Science, 234:412, 1986.) Evidently the mystery cloud mentioned above is only one in a long series: "Large icy clouds, similar to plumes of gas that rise over volcanoes, have appeared over islands along the coast of the Soviet Union during the past several years, baffling experts, who cannot explain what they are or what causes them. "The clouds dissipate in a few hours vanishing as mysteriously as they appear. "Among the ...

... Science Frontiers ONLINE No. 86: Mar-Apr 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cloud Plumes Natural But Still A Bit Anomalous During the mid-1980s, satellites photographed strange cloud plumes that stretched hundreds of kilometers downwind of some nothern islands, especially Bennett Island, in the Soviet Arctic. Some wondered if perhaps the Soviets were conducting tests of some new type of weapon in these remote locations. With the end of the Cold War, flights of instrumented aircraft over the islands were permitted. Data from these flights support the idea that the mystery cloud plumes are formed by air currents passing over the islands. In other words, they are only orographic or mountaincaused clouds, like those sometimes seen over the Rockies. But puzzles persist: Why are the plumes so long? Why do they form at such high altitudes -- more than 3 kilometers above the tops of the relatively small mountains on the islands? (Monastersky, R.; "Mountains Give Rise to Perplexing Plumes," Science News, 141:422, 1992. Also: Fett, Robert W.; "Major Cloud Plumes in the Arctic and Their Relation to Fronts and Ice Movements," Monthly Weather Review , 120: 925, 1992.) From Science Frontiers #86, MAR-APR 1993 . 1993-2000 William R. Corliss ...

... Geophysics Subjects)Within each of these fields, catalog sections that are already in print are given alphanumerical labels. For example, BHB1 = B (Biology)+ H (Humans)+ B (Behavior)+ 1 (first anomaly in Chapter BHB). Some anomalies and curiosities that are listed below have not 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 ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects GREEN CLOUD WITH LIGHT RAYS "An account of a mysterious 'green cloud' sending out powerful shafts of light and flying in tandem with an airliner appeared in a Soviet newspaper today. The strange cloud was seen over Byelorussia by passengers and crew of a flight from Georgia to Tallinn, and by the crew of an airliner from Leningrad, passing 10 miles away according to Trud. Nikolai Zheltukhin, a corresponding member of the Academy of Sciences, said the object was certainly very big. He rejected the idea that the green cloud was an image caused by far-off atmospheric changes because the airman had fixed its location from the shafts of light it sent to the ground." (Anonymous; "Mysterious 'Green Cloud' Appears near Airliner," Baltimore Sun, January 31, 1985, p. 4A.) From Science Frontiers #38, MAR-APR 1985 . 1985-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 57: May-Jun 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A NEARBY RING OF COMETS?Some 589 long-period comets are known. They ply orbits around the sun that may take millions of years to complete. Astronomers are generally agreed that these bodies originate in a very distant (100,000 A.U .* ) halo of cometary material surrounding the entire solar system. J. Oort proposed this cloud, and it is named after him. Of course, we anomalists become wary when scientists "generally agree" on a hypothetical entity that no one can see. The Oort Cloud of comets, like the unseeable black holes, are given substance only by the effects they have on other solar-system denizens and seeable cosmic objects. But there may be another cloud of comets that we can view directly. It is called the Kuiper Cloud (after G. Kui per). It is concentrated in the plane of the ecliptic just beyond the orbit of Neptune. Like the Oort Cloud, the Kuiper Cloud has not been seen yet, but we just might be able to with today's equipment! Its existence is hypothesized from the parameters of a different group of comets -- the so-called "short-period" comets, as exemplified by 76-year Halley's Comet. About 120 short-period comets have been discerned so far; and our computers now tell us that they cannot have originated in the Oort Cloud. Something closer and concentrated ...

... 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 Mystery Light Flashes Above Storms Past issues of Science Frontiers have recorded several examples of anomalous luminous phenomena above cloud tops (in SF#89, for example). Almost all of these observations have been anecdotal and too qualitative to be of use to scientists. Happily, some atmospheric scientists are now taking more interest in "rocket lightning" and those strange light flashes seen above storm clouds. First, though, one more anecdotal report, and then we'll summarize two recent scientific efforts to elucidate these phenomena. July 28, 1993. 150 miles south of Panama. From an aircraft flying at 33,000 feet. "I and another pilot in the cockpit of American Airlines Flight 912 were watching and circumnavigating a large cumulonimbus cloud. About five times, a large discharge of lightning at the top of and within the cloud was followed by a vertical shaft of blue light that propagated from the top of the cloud upward to 100,000 ft. "The beam was very straight and the color distinctly different from the lightning. At the top of this shaft, the column fanned out just before its disappearance. All the occurrences were identical. At least one also was witnessed by three other American pilots about 30 min. behind us on the same route." (Hammerstrom, John G.; "Mystery Lightning," Aviation Week , 139:6 , August 30, 1993. Cr. J.S ...

... Science Frontiers ONLINE No. 44: Mar-Apr 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Of Dust Clouds And Ice Ages Ice cores from the polar ice at Camp Century, in Greenland, have been analyzed for the presence of cosmic dust. "It is concluded that on five occasions during the interval 20,000-14,000 years BP, cosmic dust mass concentrations in the solar system rose by one and two orders of magnitude above present day levels. Moreover if the particles found in these ice core samples are indicative of the particle size distribution which prevailed in the interplanetary medium at that time, then it may be concluded that the space number density of submicron sized particles must have uncreased by a factor of 105 or more. During these times the light transmission properties of the solar system would have been significantly altered resulting in major adverse effects to the earth's climate. Thus it is quite possible that these dust congestion episodes were responsible for the abrupt climatic variations which occurred toward the end of the last Ice Age." Whence these interplanetary dust clouds? The author of this article ruled out terrestrial volcanism (an insufficient source of iridium) and encounters with asteroids and cometary tails (too infrequent to account for the long periods of high dust levels). Rather, the dust source may have been the same event that created the recently discovered dust ring between Mars and Jupiter, which is believed to be only a few tens of thousands of years old. The nature of the "event" is not ...

... Science Frontiers ONLINE No. 89: Sep-Oct 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Looping Lightning March 17, 1992. Delta Flight 1083 en route from Pittsburgh to Atlanta. At approximately 8:30 PM, this flight was thought to be flying safely high above thundercloud tops, which were situated at 20,000-22,000 feet. The pilot, W.F . Blanchard describes what he observed: "Then, from one of these clouds, a lightning bolt appeared that changed my mind instantly. This bolt came from the top of the buildup closest to our line of flight and formed an enormous loop in the sky. It started at the top of the cloud and went well above our altitude (to at least 40,00045,000 ft.) and then circled back down into the cloud. My impression is that it joined back into itself at the top of the cloud, but it may have returned to another of the peaks in the same cloud." (Grynkewich, N.E ., Jr.; "Lightning Loop," Weather, 47:493, 1992.) Comment. There have been numerous recent reports of upwardly directed "rocket" lightning, but none in which the lightning returned back to the same cloud. Grynkewich may have seen some bizarre form of intercloud lightning. Reference. Unusual and anomalous forms of lightning are cataloged in section GLL in our catalog: Lighting, Auroras . Details here . From Science Frontiers #89, SEP-OCT ...

... PLANETARY AND SATELLITE PARAMETERS ABS1 Solar System Laws of Distance ABS2 Similarity of Densities of Composite Terrestrial Planets ABS3 Multiple Primaries in the Solar System ABS4 Supposed Quantization of Planetary Orbital Periods ABS5 Solar System Mass Laws ABS6 The Quantized Nature of Orbital Systems AC COMETS ACB ORBITAL ANOMALIES OF COMETS ACB1 The Appearance of Comets in Cycles ACB2 Nonrandom Direction-of-Approach of Comets to the Sun ACB3 New Comets Have Almost Critical Velocity ACB4 Sun-Grazing Comets: The Kreutz Group ACB5 Changing Cometary Periods ACB6 Jupiter's Family of Comets ACB7 Low-Eccentricity Cometary Orbits ACB8 The Scarcity of Hyperbolic Orbits ACB9 Cometary Groups ACB10 Orbits of New Comets Diverge from Common Point ACB11 Excess of Retrograde Long Period 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 ...

... Science Frontiers ONLINE No. 133: JAN-FEB 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ribbons In The Sky November 18, 1999. North Atlantic Ocean. Aboard the m.v . Waterford enroute from Pto Bolivar, Columbia, to Ijmuiden. At 1832 UTC an azimuth of Jupiter was taken shortly after sunset. The sky in the vicinity of Jupiter was completely clear, no cloud of any type, with but a few small cumulus dotted around the horizon. About five minutes later, having completed the calculations, the observer again looked out to see a ribbon type cloud, broken in formation, stretching almost from [the] eastern horizon to [the] western horizon. If the estimated height (see below) is reasonably correct, then the bandwidth couldn't have been more than a few hundred feet, apparently more cigar-shaped in cross section than flat, the maximum axis being horizontal, the minimum vertical. The cloud was fairly consistent in density, and at a fairly stable altitude, not undulating or rippled, having the consistency of a small cumulus cloud (white and fleecy), but also translucent. Initially, it was thought to be a condensation trail, but this was shortly dismissed as it was considered too low (estimated to be less than 10,000 ft altitude, probably around 7,0008,000 ft). Both ends of the cloud were checked with binoculars but no aircraft was evident; however, as a yardstick, and by good fortune, one did appear ...

... Frontiers ONLINE No. 89: Sep-Oct 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects In The Dark About Dark Matter During our last two-month collecting cycle, four "dark matter" items worth mentioning turned up. A wider search undoubtedly would have netted many more, because dark matter is worrying a lot of astronomers. Observations of visible matter, the only kind we can see directly, suggest that most of the universe is, in fact, composed of dark matter. This conclusion comes mainly from the belief that something unseen (dark matter) is tugging on visible matter, making it do things the laws of motion say it should not do. All visible bodies, therefore, seem to be careening about in a dense cloud of unseen, unknown masses. These might be dark, Jupiter-sized objects, black holes, and/or some exotic forms of matter. We must choose between the reality of dark matter or admit that something is awry with our laws of gravitation and motion when they are applied on a cosmological scale Now, let us examine those four darkmatter items from the recent literature: D. Lin, a University of California astronomer, has shown that the Large Magellanic Cloud that orbits around our own galaxy (the Milky Way) is being torn apart (" cannibalized") by the powerful gravitational pull of a dense cloud of dark matter surrounding the Milky Way. This dismemberment of the Large Magellanic Cloud cannot be explained by the gravitational forces exerted by the stars in our galaxy that we ...

... the years. A famous flare example was observed and reported in 1900 by A.E . Douglass, at the Lowell Observaory. The popular press quickly announced that the Martians were signalling us. Actually, this assumption was quite understandable because in those days the newly discovered Martian "canals" were in everyone's thoughts. Most scientists, however, rejected the signal notion preferring to attibute the flare to the specular reflection of sunlight from snowy peaks on Mars. But they were wrong, too. Close-up inspection by modern spacecraft has revealed no snowy peaks or large bodies of water on Mars that might mirror the sun. But another possibility has now come to the fore. The Martian flares could be reflections of sunlight from flat, hexagonal crystals of water ice in the thin Martian clouds; the same crystals that create some of the solar halos and sun dogs seen on earth. That this sort of specular reflection does occur was demonstrated on June 7, 2001, when a flare was actually photographed in the area of Edom Promontorium. The photography was possible because scientists had been watching this spot intently -- with cameras at the ready -- because a well-observed flare had occurred at this location in 1954, and calculations showed that conditions would be just right for the sun to be again reflected by clouds at this spot on June 7, 2001. It was a prediction that came true. Sunlight reflected from Martian clouds cannot be the total answer, though. An area called Tithonius Lacus, for example, is the source of many flares, but it is ...

... 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 Whence Whitings?Curious clouds of fine white particles often decorate the surface of the warm, shallow waters around the Bahamas. Called "whitings," these clouds of suspended material are not minor phenomena to file away and forget. Some of the bright streaks are 200 square kilometers in area and can be seen from the Space Shuttle. The source of the whitings has not been determined with certainty. The locals claim that schools of fish stir up the fine, white, calcareous sediments. This is doubted because fish are very scarce in the areas where whitings occur. Another thought was that calcium carbonate was being precipitated directly from the ocean water. Chemical tests showed this to be impossible. A new theory has schools of sharks intentionally raising clouds of bottom sediments to blind fish. The sharks then move in with their electrosensitive organs, which are unaffected by the "white-out," and pick off the helpless fish.(Copley, Jon; "Sneak Attack," New Scientist, p. 22, December 2, 2000.) Comment. It would take a lot of sharks to stir up 200 square kilometers of sediment! And why bother if fish are scarce where whitings are seen? A similar phenomenon is seen in the sudden whitenings of the Dead Sea. Details in GHC4 in Earthquakes, Tides,... From Science Frontiers #135, MAY-JUN 2001 . 2001 William R. Corliss Other Sites ...

... Science Frontiers ONLINE No. 21: May-Jun 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Anomalous Sky Flash December 28, 1980. In the South At antic. "At approximately 2245 GMT on a moonless night the entire ship and immediate surrounding area were illuminated by what can be best described as a great camera flash. The flash was bluish-white and a small bolt of lightning appeared to be centered just above the vessel's samson posts. No noise was heard and the flash lasted only a second. The sky was clear at the time and stars of all magnitudes were clearly visible. The only clouds that could be seen were two or three small cumulus clouds; one of these was above the vessel and the others were moving towards us from the south, our course being l42 (T ) and the wind being S'E , force 3. The cloud above the vessel was at a height of about 600 feet." (Rutherford, N.W .C .; "Unidentified Phenomena," Marine Observer, 51:186, 1981.) Comment. This was obviously not ordi nary lightning, but the small cloud and small bolt of lightning indicate some sort of anomalous electrical discharge. The literature contains many other reports of bright sky flashes that cannot be attributed to meteors, heat lightning, or other sources. Reference. Entry GLA14 in Lightning, Auroras contains additional examples of all-sky flashes. This Catalog volume is described here . From Science Frontiers #21, MAY- ...

... 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 Sodium Surges Over Illinois An advanced lidar device, located at Urbana, Illinois, has been sending pulses of light up into the atmosphere and measuring the reflections from atmospheric atoms and molecules. To the researchers' surprise, this instrument detected sudden appearances of clouds of sodium atoms at about 85 kilometers altitude. The clouds quickly dissipate, but where do they come from? The best guess is that their source is meteors vaporizing in the upper atmosphere. (Raloff, Janet: "Sudden Sodium Surges Seen over Illinois," Science News, 134: 238, 1988.) Comment. Could these sodium clouds have any connection with the controversial icy comets? From Science Frontiers #61, JAN-FEB 1989 . 1989-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 44: Mar-Apr 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tunnelling Towards Life In Outer Space Most books on biology begin the history of life in those apochryphal warm ponds of primordial soup. Leave comfortable earth for a moment and consider the immense, cold clouds of gas and dust swirling between the stars and galaxies. At near-absolute-zero, sunless and waterless, these clouds hardly seem the womb of life. Yet, there may be found the atoms necessary to life -- H, C, O, N, etc -- and in profusion. Collisions of cosmic rays can promote the synthesis of fairly large molecules. We have already detected molecules as complex as formaldehyde in the interstellar medium. But surely the immensely more complicated molecules of biology cannot be synthesized near absolute zero. This may not be true either because at extremely low temperatures the quantum mechanical phenomenon of "tunnelling" becomes important. To achieve molecular synthesis, repulsive barriers must be overcome. The warm temperatures in that terrestrial pond can provide the extra kinetic energy to climb over these barriers. In cold molecular clouds we must look elsewhere. The laws of quantum mechanics state that there is always a very low probability that atoms and molecules can tunnel through repulsive barriers -- no need to climb over them via thermal effects. "Specifically, entire atoms can tunnel through barriers represented by the repulsive forces of other atoms and form complex molecules even though the atoms do not have the energy required by classical chemistry to overcome ...

... a bit on the short side for the spontaneous generation of life, although no one really knows just how long this process should take (forever?). The apparent rapidity of the onset of terrestrial life has led to a reexamination of the old panspermia hypothesis, in which spores, bacteria, or even nonliving "templates" of life descended on the lifeless but fertile earth from interstellar space. P. Weber and J.M . Greenberg have now tested spores (actually Bacillus subtilis) under temperature and ultraviolet radiation levels expected in interstellar space. They found that 90% of the spores under test would be killed in times on the order of hundreds of years -- far too short for panspermia to work at interstellar distances. However, if the spores are transported in dark, molecular clouds, which are not uncommon between the stars, survival times of tens or hundreds of million years are indicated by the experiments. Under such conditions, the interstellar transportation of life is possible. But perhaps the injection and capture phases of panspermia might be lethal to spores. Weber and Greenberg think not -- under certain conditions. The collision of a large comet or meteorite could inject spores from a life-endowed planet into space safely, particularly if the impacting object glanced off into space pulling ejecta after it. The terminal phase, the capture of spores from a passing molecular cloud by the solar system and then the earth, would be nonlethal if the spores were somehow coated with a thin veneer of ultraviolet absorbing material. In sum, the experiments place limits on panspermia, but do ...

... much methane in methane-hydrate deposits as in all terrestrial natural-gas fields. What makes methane hydrate potentially lethal is its instability. Landslides and small quakes can release huge plumes of methane bubbles into the ocean and thence into the atmosphere. Ships might founder in the lowdensity froth of bubbles, and aircraft might be adversely affected, too. This is where TWA800 comes in. R. Spalding, a scientist at Sandia National Laboratories has been monitoring mysterious atmospheric explosions and believes that some of these detonations are consistent with the atmospheric ignition of huge methane plumes. (Other detonations are due to meteors.) Spalding proposes the following scenario: The ocean floor releases a massive methane gas plume, which rapidly rises to the surface and ascends into the atmosphere. The lighter-than-air methane cloud gains altitude, mixing with oxygen and thereby gaining explosive poten tial. An electrical disturbance -- possibly caused by the rising cloud itself or a lightning strike -- detonates the cloud. Awesome energy is instantly re leased in the form of a devastating shock wave and fireball that shat ters nearby TWA Flight 800. Supporting Spalding's theory are the many reports of light flashes, light streaks, and booming/rumbling sounds accompanying the disaster. But, methane burps are bizarre, and the properties of methane hydrate are so unfamiliar to most scientists and investigators of aircraft disasters that Spalding's idea has received scant attention. (Spohn, Lawrence; "Earth 'Burp' Might Have Downed Jet, Scientists Says," Albuquerque Tribune, January 20, 1997. More appeared in the ...

... Science Frontiers ONLINE No. 1: September 1977 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Lightning Superbolts Detected By Satellites The Vela satellites carry optical sensors for the detection of terrestrial nuclear explosions. Four Vela satellites keep the entire earth under constant surveillance. In addition to nuclear explosions, these satellites register many intense lightning flashes. Some of the flashes are over 100 times more brilliant than average. Only about five of these "superbolts" occur for every 10 million flashes registered. Superbolt flashes have relatively long durations (about one thousandth of a second) and do not appear to be confined to the upper levels of the clouds. A large fraction of the superbolts are recorded over Japan and the northeast Pacific during intense winter storms. Ground observations during these storms reveal occasional very powerful discharges of long duration from positively charged regions near the cloud tops to the ground. In contrast, typical lightning arises from negatively charged regions of clouds. (Turman, B.N .; "Detection of Lightning Superbolts," Journal of Geophysical Research, 82:2566, 1977.) Reference. Many of lightning's anomalies are described in Chapter GLL in our Catalog: Lightning, Auroras. For ordering information, visit: here . From Science Frontiers #1 , September 1977 . 1977-2000 William R. Corliss ...

... with bright haloes, sundogs, and similar optical phenomena -- as long as the sun or moon are shining. Sometimes, though, human light sources will create remarkable displays using the same ice crystals. The first of the two examples below is notable for its extreme height; the second provides the accepted explanation. August 24, 1998. South China Sea. Aboard the m.v . Oriental Bay , Hong Kong to Singapore. "Four shafts of narrow vertical light were observed reflected in the sky. Upon consulting the chart it was revealed that they were 'reflections' of the four flares of the Kakap Natuna oil terminal, which at this point was 75 n mile away. "As indicated in the sketch, the shafts of light were visible above a lower layer of stratocumulus cloud, and, when measured by sextant, their upper tips were calculated to be nearly 13 km high. The shafts appeared to be reflected in a thin layer of cirrostratus and, as the vessel approached to 60 n mile from the terminal, the glow from the flares was also visible on the horizon." (Peterson, J.L .; "Optical Phenomenon," Marine Observer, 69:110, 1999.) Tall light pillars rise over the South China Sea February 4, 1999. Toyama Bay, Japan. The caption quoted below is located beneath an impressive color photograph of five tall pillars of light reaching up into the night sky. "Rare beams of light rise to the upper atmosphere over Toyama Bay on Thursday. The lights appeared about 2,000 meters ...

... 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 Lines Of Maser Spots Masers work like lasers, except they radiate microwaves instead of visible light. Natural masers have been found in the atmospheres of both earth and Mars as well as in interstellar space. They form in space when electromagnetic radiation falls upon dense molecular clouds, which then reradiate the energy at frequencies characteristic of the molecules, Armed with radio telescopes, astronomers can "see" masers as bright spots (" maser spots") in the radio sky. R. Norris and J. Whiteoak et al, at the Australia Telescope National Facility, while surveying just 16 regions of the Milky Way between 5,000 and 30,000 light years, detected a dozen intense methanol masers (6 .7 -12.2 gigahertz) arranged in lines. Early thinking is that these maser spots decorate the discs of gas clouds surrounding nascent stars. In other words, maser spots could be protoplanets. Given the small area of the sky sampled by Norris and Whiteoak, maser spots may be very common. (Dayton, Leigh; "Microwaves May Mark Position of Protoplanets," New Scientist, p. 16, July 10, 1993.) Questions. Whence all this interstellar methanol? And where does it all go when the protoplanets coalesce into planets? Could these molecular clouds also contain those other organic compounds necessary for the creation and development of life? If so, we can speculate that life may originate often and ...

... 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 Puzzling Shadows August 3, 1997. Dooey, West Donegal, Ireland. The observer, A. Evans, was on a north-south beach. "It was a glorious day with some broken cloud over the land but none out to sea. Over the period between 3.00 and 6.00pm, a total of five jets passed overhead, all leaving vapour trails. Two showed a very interesting phenomenon, because while the vapour trails extended eastwards, the trails were continued westwards in front of the planes as dark lines which stretched all the way to the horizon. It was as if the plane was running on an aerial railway. I think it significant that only two of the planes showed this phenomenon as I suspect it was heightdependent. At this time the sun was high and shining from the south-southwest." J.O . Mattsson, Lund University, surmised that the black streaks in front of aircraft were shadows of the condensation trails behind the two planes. The shadows were cast forward ahead of the planes upon the hazy, though cloudless, atmosphere above the ocean. (Evans, Alun; "Condensation Trail Shadows," Weather, 53:371, 1998.) Comment. Since the sun was high in the sky, it is difficult to visualize how a the vapor-trail shadow could be cast directly ahead of the aircraft. Hummm! We suppose that the vapor trails acted like ...

... t . Farnelia, Barents Sea fishing grounds. Observers, Skipper H. Powdrell and Mr. G. Christmas, Radio Officer. "At 2307 GMT while I was visiting the wheelhouse, the Skipper pointed out to me an object flying across the sky. It had already been in view for some five minutes or more and was first observed on a bearing of 140 T heading due North. I first sighted it on a bearing of 050 T. "Observation was constantly kept by myself and the Skipper with the aid of binoculars from the time I first sighted the object. It could be described as being a brilliant light travelling at a very high altitude, leaving a bright Vshaped trail of rays which could be likened to the sun's rays as they would appear from behind a cloud. However, they were very much smaller due to the height and were also horizontal. The object followed a course from south to north to be astern of us at 2308. It then commenced to come back along its course while losing altitude. I would point out here that there was no visual evidence of the object actually turning back but rather as though it had been put into reverse. "The appearance and shape of the object was now changed, becoming totally circular in shape, still losing height and coming closer. The outer edge of the circle I would describe as glowing and within that was another circular object, more intense, and within that was a brilliant pulsating white light as when the object was first sighted. The object reached its closest point to us by 2317 ...

... 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 Globular Clusters Upset Theory Of Galaxy Formation A spherical cloud of globular clusters surrounds the Milky Way galaxy. Each cluster is itself a spherical groups of stars. Through the telescope, globular clusters are beautiful spherical aggregations of bright stars that seem to get ever denser toward the cluster's center. Globular clusters harbor many anomalies (AOB4 and AOB17 in Stars, Galaxies, Cosmos); here, we mention two involving spatial distribution and age. Many spiral galaxies, like our own Milky Way, spin ponderously in the center of a spherical cloud of scores, even hundreds, of globular clusters (see sketch). Not only do the globular clusters surrounding us display a different spatial distribution (spherical rather than flat-spiral), but their individual ages undercut galaxy theory. All of the Milky Way's globular clusters were supposed to have been formed when our galaxy was created. Yet, the ages of these clusters vary by as much as 5 billion years. (Dayton, Leigh; "Globular Clusters Upset Theory of Galaxy," New Scientist, p. 34, May 13, 1989.) Comment. We cannot resist mentioning still another cluster anomaly: The globular clusters do not participate in the galaxy's general rotation. Where did these oddballs come from? Reference. The catalog volume: Stars, Galaxies, Cosmos, mentioned above, is described here . From Science Frontiers #66, NOV-DEC 1989 ...