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Message Subject "Space Shuttle Science"
Poster Handle DrKnow
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Well, this sounds good...all "scientific" and everything. However it is totally wrong, since the basis for this is the theory that comets are made of ice, like a "dirty snowball" to try and explain the tail that appears as they near the sun. However, this has been proven to be bunk, since last year they actually LANDED a ship on a comet and found NO WATER AT ALL. Since this is the basis of this entire theory outlined above, it throws all of it into the trash. Sorry. Comets are rocks. No water.

Feb 14, 2006
Deep Impact—Where’s the Water?

Early in the morning of July 4, 2005, cosmic fireworks occurred millions of miles from Earth. NASA had planned the event to clear up some longstanding mysteries about comets. But what actually happened defied every expectation of the comet experts.

About 24 hours earlier, the Deep Impact spacecraft had fired an 800-pound copper projectile at the nucleus of Comet Tempel 1. The impact was expected to eject large volumes of subsurface material into space, and we were assured that the material would be dominated by water. The presence of abundant volatiles, preeminently water ice sublimating in the heat of the Sun, is an essential requirement of standard comet theory.

Without cometary ices, it is the “dirty snowball” theory that would evaporate. How could comets produce their often-spectacular tails in the absence of sublimating volatiles?

Cameras on the projectile recorded its approach toward the nucleus, and instruments on the spacecraft observed the event across a broad spectrum. Dozens of telescopes on Earth and in orbit around the Earth were trained on the comet.

According to NASA scientists, the released material would provide a sample of the primordial water, gas, and dust from which the Sun, planets, moons, and other bodies in the solar system formed. Statements advancing this claim were the general rule, as if the modern theory of comets was no longer a theory, but a fact

"It's pretty clear that this event did not produce a gusher," said SWAS principal investigator Gary Melnick of the Harvard-Smithsonian Center for Astrophysics (CfA). "The more optimistic predictions for water output from the impact haven't materialized, at least not yet."

The Deep Impact team had hoped that, by excavating material from the comet's interior, they could find the one thing the standard model required. “SWAS operators were puzzled by the lack of increased water vapor from Tempel 1”. In fact, an observation from the Odin telescope in Sweden found that the relative abundance of water decreased after the impact, due to the injection of quantities of dry dust, not water.


article continues here...

[link to thunderbolts.info]

[link to thunderbolts.info]

[link to thunderbolts.info]
 
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