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... Science Frontiers ONLINE No. 11: Summer 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mysterious Swirl Patterns On The Moon In at least three lunar locations, enigmatic bright-and-dark swirl patterns drape craters and mare terrains. Ranging from 10 kilometers across to less than 50 meters, they may be ribbon-like, open-looped, or closed-looped. The swirls are sharply defined but do not appear to scour or otherwise disturb the terrains where they occur. Similar swirl patterns have been recognized on Mercury. Two intriguing characteristics of the lunar swirl patterns are: (1 ) They coincide with strong magnetic anomalies; and (2 ) They appear to be very young, being superimposed on top of essentially all lunar features ... Science Frontiers ONLINE No. 11: Summer 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mysterious Swirl Patterns On The Moon In at least three lunar locations, enigmatic bright-and-dark swirl patterns drape craters and mare terrains. Ranging from 10 kilometers across to less than 50 meters, they may be ribbon-like, open-looped, or closed-looped. The swirls are sharply defined but do not appear to scour or otherwise disturb the terrains where they occur. Similar swirl patterns have been recognized on Mercury. Two intriguing characteristics of the lunar swirl patterns are: (1 ) They coincide with strong magnetic anomalies; and (2 ) They appear to be very young, being superimposed on top of essentially all lunar features ...
Terms matched: 2 - Score: 303 - 15 May 2017 - URL: /sf011/sf011p03.htm
... Science Frontiers ONLINE No. 16: Summer 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The moon's magnetic swirls The impressively strong magnetic anomalies discovered on the lunar surface remain enigmas. They appear to be superficial patches of highly magnetic material rather than deep-seated manifestations of basic lunar structure. Instead of being associated with gravity anomalies, the magnetic patches seem coincident with strange swirl-like markings on the moon's surface. The logical inference is that the swirls are surface patterns of highly magnetic substance -- but why the pecu-liar patterns and where did the strongly magnetic material come from? (Hood, L.L .; "The Enigma of Lunar Magnetism," Eos, 62:161, 1981. ... Science Frontiers ONLINE No. 16: Summer 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The moon's magnetic swirls The impressively strong magnetic anomalies discovered on the lunar surface remain enigmas. They appear to be superficial patches of highly magnetic material rather than deep-seated manifestations of basic lunar structure. Instead of being associated with gravity anomalies, the magnetic patches seem coincident with strange swirl-like markings on the moon's surface. The logical inference is that the swirls are surface patterns of highly magnetic substance -- but why the pecu-liar patterns and where did the strongly magnetic material come from? (Hood, L.L .; "The Enigma of Lunar Magnetism," Eos, 62:161, 1981. ...
Terms matched: 2 - Score: 290 - 15 May 2017 - URL: /sf016/sf016p04.htm
... and Transits AJX6 Post-Eclipse Brightening of Io AJX7 Discrepancies in Predictions of of Eclipses and Transits AJX JUPITER'S MAGNETIC FIELD AJX1 Offset Magnetic Field AL THE MOON ALB THE MOON'S ORBITAL ANOMALIES ALB1 Earth-Moon Instability ALB2 Discrepancies in the Moon's Ephemeris ALB3 Nongravitational Forces and Earth-Moon Acceleration Discrepancies ALB4 Earth-Moon Acceleration Incompatible with Moon's Origin in Earth Orbit ALE LUNAR GEOLOGY PROBLEMS ALE1 Asymmetrical Distribution of Maria and Large Basins ALE2 Sinuous Rilles and Formations Resembling Terrestrial Water-Formed Features ALE3 The Lunar Rays ALE4 Lunar Features Seemingly Shaped by Ice ALE5 Swirl Markings ALE6 Anomalous Red Formations ALE7 Layered Structures ALE8 Lunar Glasses ALE9 Nonrandom Distribution of Lunar Craters ALE10 Unexplained Minor Surface Features ALE11 Large-Scale Asymmetries in in Composition ALE12 Dark-Haloed Lunar Craters ALE13 Local Concentrations of ... OBSERVATIONS OF EARTH FROM SPACE AGO1 Periodic Changes in Earth's Brightness AH MERCURY AHB MERCURY'S ORBITAL AND SPIN ANOMALIES AHB1 The Residual Advance of Mercury's Perihelion AHB2 Mercury's High Eccentricity and Inclination AHB3 Short Transit Times across the Sun AHB4 Mercury's Spin Resonance AHE GEOLOGY AND FIGURE OF MERCURY AHE1 The Asymmetry of Mercury's Topography AHE2 Mercury's Possible Prolate Shape AHE3 Swirl Markings AHF INTRINSIC RADIATION SOURCES AHF1 Extreme-Ultraviolet Emissions from Mercury AHO ANOMALOUS TELESCOPIC OBSERVATIONS AHO1 Mercury's Occasional Blunted Cusps AHO2 Terminator Irregularities AHO3 White Projections and Spots AHO4 Dark Linear Markings AHO5 Anomalous Brightness Temperatures AHO6 Ring of Light around Mercury's Dark Side AHX ANOMALIES OBSERVED DURING TRANSITS AHX1 Bright Spots on Mercury during Transit AHX2 Ring around Mercury during Transit AHX3 Illumination of Mercury's Disk ...
Terms matched: 2 - Score: 263 - 15 May 2017 - URL: /cat-astr.htm
... Science Frontiers ONLINE No. 56: Mar-Apr 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cometary scars on the moon?More information has surfaced on the enigmatic lunar swirl markings (Category ALE5 in our catalog: The Moon and the Planets. These whitish blotches are not only visually incongruous, being obviously different from the debris spla shes around craters, but they also exhibit curious magnetic properties. J.F . Bell and B.R . Hawke, of the University of Hawaii, have acquired near-infrared spectra of the swirl designated Reiner Gamma. They report that the composition of the swirl material does not match the crater ejecta; and, also, that a previously undetected reddish halo surrounds the swirl. Best guess at ... : The swirls are the scars of comets -- probably less than 100 million years old. (Anonymous; "Cometary Scars on the Moon," Sky and Telescope, 75:11, 1988.) Comment. Does nearby earth also bear cometary scars? Some think that the 1908 Tunguska Event was a cometary impact. (See ETC2 in our catalog: Caro lina Bays, Mima Mounds .) Also see the the item below under GEOLOGY about comets and the earth's oceans. Reference. Both catalog volumes mentioned above are described here . From Science Frontiers #56, MAR-APR 1988 . 1988-2000 William R. Corliss ...
Terms matched: 2 - Score: 221 - 15 May 2017 - URL: /sf056/sf056a05.htm
... of recent catastrophism, which envision an iceless Antarctica. At least 20 amino acids appear in the more than 40 carbonaceous chondrites picked up with sterile equipment. These meteorites are dated as 4.5 billion years old, or 1 billion years older than the earliest terrestrial life found in the rocks. These finds highlight the old question: Did meteorites seed life on earth? The much-publicized "lunar" meteorite, supposedly blasted out of the moon's crust by asteroid impact, thence falling to earth, shows little evidence of mechanical shock. If this meteorite, with a composition so similar to the Apollo samples is not from the moon, where did it come from? (Marvin, Ursula B.; "Extraterrestrials Have Landed on Antarctica," New Scientist, 97:710 ... Science Frontiers ONLINE No. 27: May-Jun 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The solar-system dust bin For hundreds of thousands of years, miscellaneous rocky debris swirling around the sun has been falling upon the icy wastes of Antarctica. The motion of Antarctica's ice sheet carries these meteorites conveyor-belt fashion out towards the encircling seas. But where Antarctic mountains get in the way, the rocky cargo tends to get concentrated. Several thousand meteorites have already been picked up at these favored spots. In just a few brief summers of searching, these massive finds have posed unexpected questions. Here is a sampling. The terrestrial ages (times since arrival on earth) measure between 1,000 and 700, ...
Terms matched: 2 - Score: 151 - 15 May 2017 - URL: /sf027/sf027p08.htm
