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.


Subscriptions to the Science Frontiers newsletter are no longer available.

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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Please note that the publisher has now closed, and can not be contacted.


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Search results for: pluto

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... high end of the density spectrum, we now have an asteroid that seems to be mostly metal (probably iron). This is the asteroid Gaspra, some 13 kilometers across, that the Galileo spacecraft encountered in August 1992 on its way to Jupiter. Scientists had not expected Galileo's magnetometer to flicker as it passed Gaspra at a distance of 1600 kilometers -- but it did. In fact, considering the inverse square law and Gaspra's small size, it was a magnetic wallop. Thus, Gaspra is the first known magnetic asteroid; and it is probably mostly metal. (Kerr, Richard A.; "Magnetic Ripple Hints Gaspra Is Metallic," Science, 259: 176, 1993.) At the low end of the density spectrum, we now find that Pluto's moon, Charon, and some of Saturn's moons have very low densities (1 .2 -1 .4 ), meaning they are probably mostly water ice. Such density figures come from direct observation of these objects' volumes combined with mass estimates from their orbital dynamics. (Crosswell, Ken; "Pluto's Moon Is a Giant Snowball," New Scientist, p. 16, November 21, 1992.) Comment. How did this curious mix of ice and iron objects originate? Did some ancient collision demolish a planet with an iron core (like the earth"s ) and an icy exterior? From Science Frontiers #86, MAR-APR 1993 . 1993-2000 William R. Corliss ...
Terms matched: 1  -  Score: 24  -  15 May 2017  -  URL: /sf086/sf086a04.htm
... Science Frontiers ONLINE No. 19: Jan-Feb 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Problems At The Rim Of The Solar System Neptune is an undisciplined member of the solar system. No one has been able to predict its future course accurately. Already this maverick planet is drifting off the orbit predicted just 10 years ago using the best data and solar-system models. All of the outer planets, in fact, confound predictions to some degree. In addition, some long-period comets have anomalous orbits. Astronomers have been aware that something was wrong for decades and anticipated finding a trans-Neptunian planet large enough to perturb the outer solar system. The discovery of Pluto did not help matters; it is much too small. The most popular explanation of the orbital anomalies relies on a large, still-undetected planet, possibly 3-5 times the mass of the earth, swinging sround the sun at some 80-100 Astronomical Units. But many have searched and no one has found anything. Planet-X , as it is often called, is just another bit of "missing mass." Thomas C. Van Flandern and Robert Harrington propose that all the obvious orbital damage in the outer solar system is the result of a single encounter between Neptune and another body, call it Planet X if you wish, that was passing through the outer reaches of the solar system. (Frazier, Kendrick; "A Planet beyond Pluto," Mosaic, 12:27, September/October 1981. ...
Terms matched: 1  -  Score: 24  -  15 May 2017  -  URL: /sf019/sf019p04.htm
... periods. Many other satellites in the solar system have had chaotic rotations in the past. It is not possible to tidally evolve into a synchronous rotation without passing through a chaotic zone. For irregularly shaped satellites this chaotic zone is attitude-unstable and chaotic tumbling ensues. This episode of chaotic tumbling probably lasts on the order of the tidal despinning timescale. For example, the Martian satellites Phobos and Deimos tumbled before they were captured into synchronous rotation for a time interval on the order of 10 million years and 100 million years, respectively. This episode of chaotic tumbling could have had a significant effect on the orbital histories of these satellites." Theis abstract continues, naming as other candidates for chaotic histories: some of the asteroids, Miranda (a satellite of Uranus), and the planet Pluto. (Wisdom, J.; "Chaotic Dynamics in the Solar System," Eos, 69:300, 1988. Also see: Kerr, Richard A.; "Pluto's Orbital Motion Looks Chaotic," Science, 240: 986, 1988.) Comment. We have been assured often, particularly in the days of Velikovsky, that the solar system has been stable for billions of years! Yet, Wisdom states very clearly above that synchrony cannot be evolved without passing through a chaotic zone. The solar system abounds in resonances, not the least of which is the earth-Venus resonance. For more on this, see ABB1 in our catalog: The Sun and Solar System Debris. This volume is described here . From Science Frontiers #58, JUL- ...
Terms matched: 1  -  Score: 24  -  15 May 2017  -  URL: /sf058/sf058a06.htm
... Science Frontiers ONLINE No. 67: Jan-Feb 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Direct observations of hyperion's chaotic motion Hyperion is a 150-kilometer-diameter satellite of Saturn. Hyperion's irregular shape and the gravitational pull of Titan, a larger satellite of Saturn, make it a prime candidate for chaotic motion. After accumulating 53 Hyperion-days of observation, J. Klavetter has confirmed this theoretical suspicion. Hyperion's brightness varies wildly from day to day, as it spins unpredictably. The laws of motion and the largest computers are helpless here; although computer simulation can identify situations where chaos might develop. More alarmingly, some "subtle" chaos also appears in computer simulations of Pluto's motion and "perhaps other planets." (Kerr, Richard A.; "First Direct View of Solar System Chaos," Science, 246: 998, 1989.) Comment. Contemplate what might happen -- or might have happened already -- if any of the other planets moved chaotically. From Science Frontiers #67, JAN-FEB 1990 . 1990-2000 William R. Corliss ...
Terms matched: 1  -  Score: 14  -  15 May 2017  -  URL: /sf067/sf067a05.htm
... , outer planets would be merely failed stars. The advantages of this change of perspective are threefold: (1 ) All five central bodies are now compositionally similar as a class, (2 ) In each of the five systems, the angular momentum of the central body is greater than that of its satellites, whereas in the unitary solar system the angular momentum of the nine planets is much greater than that of the sun -- an embarrassing anomaly. (3 ) A final "bonus" appears when the distances of the satellites in the five systems are plotted, as indicated, and compared. The arrangement of the four terrestrial planets (the "solar satellites") closely resembles the distribution of Jupiter's four Galilean satellites. There are loose ends, to be sure, like Pluto and Saturn's rings, but the idea seems worth studying further. (Cole, G.H .A .; "Dynamical Form of the Solar System," Observatory, 105:96, 1985.) Comment. The arrangement of satellites in the figure may have no physical significance, but if you like Bode's Law you should appreciate the situation. Reference. For more information on the book The Moon and the Planets, visit: here . Distribution of orbital radii (r ) of central body satellites, where R is measured in terms of central body radii. Cole terms the similarities 'remarkable'. From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...
Terms matched: 1  -  Score: 13  -  15 May 2017  -  URL: /sf042/sf042p08.htm
... 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 An Astronomer's UFO As long-time readers of Science Frontiers are aware, UFOs get little space here. Every once in a while, though, we see something UFOish worth passing along. The one below is from 1957, and the observer was a famous astronomer, Clyde Tombaugh, the discoverer of Pluto. Tombaugh was an avid skywatcher as well as an acute telescopic observer. He was very familiar with atmospheric phenomena. His experience belies the common assertion of UFO skeptics that "professional astronomers never see UFOs." An Unusual Aerial Phenomenon by Clyde W. Tombaugh I saw the object about eleven o'clock one night in August, 1949, from the backyard of my home in Las Cruces, New Mexico. I happened to be looking at zenith, admiring the beautiful transparent sky of stars, when I suddenly spied a geometrical group of faint bluish-green rectangles of light similar to the "Lubbock lights". My wife and her mother were sitting in the yard with me and they saw them also. The group moved south-southeasterly, the individual rectangles became foreshortened, their space of formation smaller, (at first about one degree across) and their intensity duller, fading from view at about 35 degrees above the horizon. Total time of visibility was about three seconds. I was too flabbergasted to count the number of rectangles of light, or to note some other features I wondered about later. ...
Terms matched: 1  -  Score: 13  -  15 May 2017  -  URL: /sf129/sf129p15.htm
... Oscillations AOF20 Rapid Variation of Celestial Radio Sources AOF21 Gamma-Ray Objects AOF22 Galactic Sources of Unidentified Radiation AOF23 White-Dwarf Anomalies AOF24 Globular-Cluster "Age' Anomalies AOF25 Infrared Bursters AOF26 Stellar "Age" Anomalies AOF27 Higher Masses of Smaller White Dwarfs AOF28 Historical Disappearance of Stars AOF29 Gamma-Ray Bursters AOF30 X-Ray Bursters AOO EXTENDED GALACTIC OBJECTS AOO1 X-Ray Rings AOO2 Nebular Jets AOO3 The North Polar Radio Spur AOO4 Triangular Appearance of Stars in Telescopes AOO5 Puzzling Nature of Bok Globules AOO6 Jets from Young Stars AOO7 The Red Rectangle AOO8 Herbig-Haro Objects AOO9 Molecular-Cloud Rings AOO10 Infrared Cirrus Clouds AOO11 Diffuse Cartwheel-Like Structures AOX STELLAR-ECLIPSE PHENOMENA AOX1 Anomalous Precession of Eclipsing Binaries AOX2 Anomalous Stellar-Eclipse Light Curves AOX3 Sudden Onsets and Cessations of Stellar Eclipses AP PLUTO Titles not yet posted AQ QUASARS AQB QUASAR CLUSTERING AND ASSOCIATIONS WITH GALAXIES AQB1 Quasar-Galaxy Juxtaposition AQB2 Quasar Pairs Straddling Galaxies AQB3 Anisotropic Distributions of Galaxies AQB4 Apparent Physical Connections between Quasars and Galaxies AQB5 Quasar Alignments AQB6 Pairs and Clusters of Quasars AQF ANOMALIES DETECTED THROUGH QUASAR RADIATION AQF1 Initial Increase of Bright Quasars with Redshift AQF2 Quantization of Quasar Redshifts AQF3 Possible Redshift Cutoff for Quasars AQF4 Flat Distribution of Faint Quasars AQF5 The Quasar Energy Paradox AQF6 Absence of Blue-Shifted Quasars AQF7 Anomalous Redshifts of Quasar Absorption Lines AQF8 Quasar Variability: Origin and Implications AQF9 Unresolved Nature of Blazers (BL Lacertae) AQO QUASAR MORPHOLOGY AND COMPONENT DYNAMICS AQO1 Quasar Fuzz: What Is It? AQO2 Anomalies of Quasar Radio-Jet Structures AQO3 Superluminal Velocities in Quasars AR SATURN ARF SATURN'S INTRINSIC RADIATION ARF1 The Saturn ...
Terms matched: 1  -  Score: 5  -  15 May 2017  -  URL: /cat-astr.htm

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