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If a comet were indefinitely allowed to fly in space while venting, without some other outside force acting on it to make it fracture, it would eventually shed all its material until it was nothing but a scattered debris trail.
www.space.com...
Catastrophic breakups may be the ultimate fate of most comets," explained Hal Weaver, a planetary astronomer of the Johns Hopkins University Applied Physics Laboratory, in a statement.
www.nasa.gov...
Though this particular body is actively shedding dust, WISE is also expected to find dark, dead comets. Once a comet has taken many trips around the sun, its icy components erode away, leaving only a dark, rocky core. Not much is known about these objects because they are hard to see in visible light. WISE's infrared sight should be able to pick up the feeble glow of some of these dark comets, answering questions about precisely how and where they form.
"Dead comets can be darker than coal," said Mainzer. "But in infrared light, they will pop into view. One question we want to answer with WISE is how many dead comets make up the near-Earth object population."
Originally posted by SunnyDee
Originally posted by randyvs
Here I've retrived A's image for you. Now you can see the same image is in all three and there is an untold number of the same, I can bring as many as you like in a contrast of different colors, but the image itself is a constant.
edit on 23-6-2011 by randyvs because: (no reason given)
Now where did DJ go ?
:edit on 23-6-2011 by randyvs because: (no reason given)edit on 23-6-2011 by randyvs because: (no reason given)
Still waiting for documentation on this image too. Hmmm.
Originally posted by Pauligirl
Comet Elenin will pass very close to STEREO-B in July 2011. See the orbit simulation here.
secchi.nrl.navy.mil...
Earlier this month, an advanced energy researcher disclosed information on the decline in dark energy density that began in the early 1980s and has accelerated through today. The rudimentary chart shown in the video was created from the four data points provided during the same conversation.
Originally posted by redoubt
Comet Elenin has already started talk again about the comet mentioned in the Nostradamus quatrains that will, supposedly, shed a quarter-mile diameter shard that will then impact our planet in the area of the Azores.
This impact will then cripple much of Europe and the east coast of North America, leaving the path open for the Muslim horde led by the Mahdi.
The entire sequence was originally supposed to begin in August (or October)of 1999, when the comet is seen by way of an eclipse. But calendars being what they are and our inexact keep of time, the focus is now on Elenin as that harbinger.
In closing, a quarter-mile (one stadia) comet fragment striking along the mid-Atlantic ridge around the Azores would cause all kinds of problems, including tsunamis, earthquakes, floods and retransitting pieces of our own planet.
This is news to me ... I am a Nostradamus fan, and had not come across this before; can you tell me which quatrains?
So what do you all think of this opinion in this video. The guy shows that other comets in the JPL similator show a nice even arc through our solar system, but Elenin makes sharp cornered adjustments.
Originally posted by DJW001
reply to post by SunnyDee
So what do you all think of this opinion in this video. The guy shows that other comets in the JPL similator show a nice even arc through our solar system, but Elenin makes sharp cornered adjustments.
He refers to the other comets' orbits as "circular." They are not, they are elliptical. C2010 X-1's orbital parameters have not yet been firmly established. It may be hyperbolic, in which case it will never return.The "angles" in the orbital plot are due to the limitations of the software. If you zoom out far enough the curve looks much smoother.
Originally posted by DJW001
reply to post by Serendipity7
This is news to me ... I am a Nostradamus fan, and had not come across this before; can you tell me which quatrains?
Probably not, because people make up new Nostradamus prophesies every day.
Please go back and re-read this thread, all of the claims in the videos you link to have been debunked at length. If you know anything about the Sumerians, you know their astronomical knowledge was negligible; it was the Babylonians who were the star gazers.
Funny, because people make up new B.S. everyday too. You should please go back and re-read your history. It appears sir that your claim itself has been debunked...
Our knowledge of Sumerian astronomy is indirect, via the earliest Babylonian star catalogues dating from about 1200 BCE....
During the 8th and 7th centuries BCE, Babylonian astronomers developed a new empirical approach to astronomy. They began studying philosophy dealing with the ideal nature of the universe and began employing an internal logic within their predictive planetary systems. This was an important contribution to astronomy and the philosophy of science, and some scholars have thus referred to this new approach as the first scientific revolution