I ran across this article in an Astrophysics Magazine just over a week ago and I thought I would share it with the family. The Article was Written by an Astro-Physicist by the name of Dr Paul LaViolette President of the Starburst Research Institute located in Schenectady. The article reads as follow. Cosmic rays from a galactic core explosion penetrate far outside the galaxy's nucleus to bombard solar systems like our own residing in the spiral arm disk. Dr. LaViolette coined the word "galactic superwave"" to refer to such a cosmic barrage. He has shown that galactic superwaves recur at long intervals and arrive at Earth's doorstep without warning because they travel at near light speed. Galactic superwaves are a recent discovery. During the early 60's astronomers began to realize that the massive object that forms the core of our galaxy( what massive object is this?), Periodically become active. The scores of all spiral galaxies cycle through a similar phase. During it's active period, our galactic core spews out a firece quasar-like barrage of cosmic rays, with a total energy output equal to hundreds of thousands of supernova explosions. In some galaxies these active emissions have been observed to equal the energy from the billions of supernova explosions. Until recently, astronomers believed these eruptions were very infrequent, occurring every 10 to 100 million years They also believed the interstellar magnetic fields, in the galactic nucleus, would trap the emitted particles in spiral orbits causing them to reach the Earthy very slowly. For these reasons, many did not believe that the Galactic core explosions posed any immediate threat to the Earth. However, In 1983 Dr. LaViolette presented evidence to the scientific community indicating that: 1. Galactic core explosions actually occur about ever 13,000 - 26,000 years (one great year) for major outbirst and more frequently for lesser events. 2. The emitted cosmic rays escape from the core virtually unimpeded. As they travel outward through the Galaxy, they form a spherical shell that advances at a velocity approaching the speed of light. Astronomical discoveries subsequently confirmed aspects of Dr. LaViolette's hypothesis. In 1985, astronomers discovered that Cygnus X-3, an energetic celestial source of cosmic rays, which is about the same distance from Earth as the Galactic Center (25,000 light years), is showering Earth with particles, traveling at close to the speed of light, moving in essentially straight paths. Later, scientist found the Earth is impacted, at sporadic intervals, with cosmic rays emitted from the X-ray pulsar Hercules X-1 ( about 12,000 light years distance). The intervening interstellar medium has so little effect on these particles, that their puslation period of 1.2357 seconds, is constant to within 300 microseconds. These findings are reason to be gravely concerned about the effects of a Galactic core explosion because they imply that the cosmic rays generated can impact our planet, virtually without warning, preceded only by the wave-flash from the initial explosion. Astronomical observations show the last major Galactic core explosion occurred as recently as 10,000 to 15.000 years ago. Data obtained from polar ice core samples show evidence of this cosmic ray event as well as other cosmic ray intensity peaks from earlier times. ( a chart is given below, unfortunately I cannot display it here) Dr. LaViolette's prediction that there is a residual flow of interstellar dust currently entering the solar system from the Galactic center direction that was later verified by data from the Ulysses spacecraft and by AMOR radar measurements made in New Zealand. I find this article pretty interesting, I also would like to know, what is this massive object that forms the core of our galaxy? Just a little food for thought folks!