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Fluff système solaire. Comets Chapter index in this window — — Chapter index in separate window This material (including images) is copyrighted!. See my copyright notice for fair use practices. Select the photographs to display the original source in another window. The passage of the comet Hale-Bopp through our part of the solar system created spectacular displays in the spring of 1997. Our favorable view of comets is a big change from the dread and fear people held of comets even less than a century ago. Comets are small "potato-shaped" objects a few hundred meters to about 20 kilometers across.

When a comet gets close enough to the Sun, it changes into something more spectacular. Nucleus All the material comes from the nucleus. When a comet nears the Sun around the Jupiter-Saturn distance, it warms up. Since the orbit of Halley's Comet is known so well, spacecraft were sent to it when it passed through our part of the solar system in 1986. The Deep Impact spacecraft has been renamed the EPOXI mission. Coma. JPL Small-Body Database Browser. Magnetic polar shifts causing massive global superstorms - by Terrence Aym. NASA has been warning about it…scientific papers have been written about it…geologists have seen its traces in rock strata and ice core samples… Now "it" is here: an unstoppable magnetic pole shift that has sped up and is causing life-threatening havoc with the world's weather.

Magnetic polar shifts causing massive global superstorms - by Terrence Aym

Forget about global warming—man-made or natural—what drives planetary weather patterns is the climate and what drives the climate is the sun's magnetosphere and its electromagnetic interaction with a planet's own magnetic field. When the field shifts, when it fluctuates, when it goes into flux and begins to become unstable anything can happen. And what normally happens is that all hell breaks loose. Magnetic polar shifts have occurred many times in Earth's history. The magnetic field drives weather to a significant degree and when that field starts migrating superstorms start erupting. The superstorms have arrived On the heels of the lashing the British Isles sustained, monster storms began to pummel North America. Planetary Defense. Planetary Defense. Recognition is an awareness, by a broad spectrum of the population that there is a threat.

It may be infrequent, but when it occurs it is devastating. Surveillance of the near space environment is carried out by optical telescopes, aided by the new CCD imaging revolution. There are several programs, both large and small, around the world that are currently dedicated to searching the skies for potential impactors. Surveillance also includes the computer systems (both software and hardware) that keep track of the many tens of thousands of asteroids and comets that have been discovered, and search for possible orbital intersections with the Earth.

The third phase, of impact mitigation, has been much discussed, but there has been no universal consensus on how an impact threat should be handled. Unfortunately, due to several manufacturing deficiences encountered with the telescope system, it was returned to the manufacturer after a few months. Further information on IPS can be found here.

Avertissement de Russie a publié plus «contrôlée» se dirige vers la Terre Comet. Earth-Issues posting about a chilling report prepared for President Medvedev by Minister Serdyukov of the Russian Defense Ministry on the building of an additional 5,000 underground ‘bomb’ shelters in Moscow warns that even though progress is being made, the appearance of the new Comet Elenin in our Solar System means “additional resources” will have to be added “immediately” as the 2012 timeline for completion “may not be soon enough”.

Avertissement de Russie a publié plus «contrôlée» se dirige vers la Terre Comet

Sparking the fears of Minister Serdyukov, he says in this report, is that based upon the new orbit calculations for Comet Elenin, it appears in “all likelihood” that this celestial object is under some type of “intelligent control” and will approach our Earth “much closer” than originally thought this coming fall season. Sisters of Sorcha Faal strongly disagrees with in believing that it is every human beings right to know the truth. “A timid person is frightened before a danger, a coward during the time, and a courageous person afterward.”