Science Frontiers
The Unusual & Unexplained

Strange Science * Bizarre Biophysics * Anomalous astronomy
From the pages of the World's Scientific Journals

Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics

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.

The publisher

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


Yell 1997 UK Web Award Nominee INTERCATCH Professional Web Site Award for Excellence, Aug 1998
Designed and hosted by
Knowledge Computing
Other links


Search results for: impact role

3 results found containing all search terms.
Sorted by relevance / Sort by date
... Hartung to warn us that June is a dangerous month for earthlings. June 18, 1178. On the moon. ". .. just after sunset, it was reported by at least five men that the 'upper horn of a new moon split and from the division point fire, hot coals, and sparks spewed out.'" These observations have been interpreted as eyewitness accounts of the impact on the moon that gouged out the crater named Giordano Bruno, 20 kilometers in diameter. June 30, 1908. Siberia. "On the morning of June 30, 1908, a tremendous explosion deep in the Siberian taiga near the Tunguska river caused trees over an area of 40 km in diameter to be flattened in a radial pattern and produced a pressure wave in the atmosphere which circled the ... . Such a scenario is unlikely today because the concentration of fissionable 235U in natural uranium has declined by a factor of about five in the last 2 billion years. The half life of 235U is only about 700 million years. (Nagy, Bartholomew; "Precambrian Nuclear Reactors at Oklo," Geotimes , 38: 18, May 1993. Also: Nagy, Bartholomew, et al; "Role of Organic Matter in the Proterozoic Oklo Natural Fission Reactors, Gabon, Africa," Geology , 21:655, 1993.) Reference. The Oklo Phenomenon is covered in greater detail in ESP13 in the catalog: Anomalies in Geology. To order visit here . From Science Frontiers #94, JUL-AUG 1994 . 1994-2000 William R. Corliss ...
Terms matched: 2  -  Score: 146  -  15 May 2017  -  URL: /sf094/sf094a04.htm
... , and variable amounts of sediment. All seem to have appeared suddenly, within plates. No consistent context of plate interactions explains them. We suggest that large lava plateaus are indeed terrestrial maria." Alt et al go on to show that these lava plateaus seem to have initiated continental rifts and hotspot tracks where none existed before. A reasonable inference is that these plateaus are the consequence of the impacts of large meteorites. This is particularly the case with the Deccan Plateau, which is agedated as synchronous with the Cretaceous-Tertiary Boundary event, with its legacy of worldwide iridium deposits and the wholesale extinction of life. The paper concludes with: "It therefore appears that random encounters with vagrant asteroidal objects play an important role in setting the course of plate tectonic events. The earth does not ... its own agenda." (Alt, D., et al; "Terrestrial Maria: The Origins of Large Basalt Plateaus, Hotspot Tracks and Spreading Ridges," Journal of Geology, 96:647, 1988.) From Science Frontiers #61, JAN-FEB 1989 . 1989-2000 William R. Corliss ...
Terms matched: 2  -  Score: 136  -  15 May 2017  -  URL: /sf061/sf061g10.htm
... warm towards this idea: "The mass of escaping ejecta from the presumed 10-km comet that caused the 180-km Chicxulub crater, with a radius of roughly 10 km and 1 m deep, amounted to ~300 Mm3 , of which one third may have been rock and 10% higher-speed ejecta that could have transited directly to Mars. It may have taken 10 Ma to impact Mars but...the probability is not exceedingly low but 0.1 -1 %. "The survival and replication of microorganisms once they are released at destination would depend on the local conditions that prevail. Although viability on the present-day Martian surface is problematical, Earth-to-Mars transfers of life were feasible during an earlier 'wet' phase of the planet, ... 5 Ga ago. The Martian atmosphere was also denser at that epoch, with several bars of CO2 , thus serving to decelerate meteorites, as on the present-day Earth. Since the reverse transfer can occur in a similar manner, early life evolution of the two planets may well have been linked." (Wallis, Max K., and Wickramasinghe, N.C .; "Role of Major Terrestrial Cratering Events in Dispersing Life in the Solar System," Earth and Planetary Science Letters , 130:69, 1995) Comment. Now we know why the "face on Mars" looks so human!! From Science Frontiers #99, MAY-JUN 1995 . 1995-2000 William R. Corliss ...
Terms matched: 2  -  Score: 135  -  15 May 2017  -  URL: /sf099/sf099g10.htm

Search powered by Zoom Search Engine