Posted on 12/03/2008 9:41:38 AM PST by Fractal Trader
A comet orbiting our Sun may be an interloper from another star system.
Comet Machholz 1 isn't like other comets. David Schleicher of the Lowell Observatory in Flagstaff, Arizona, measured the chemical makeup of 150 comets, and found that they all had similar levels of the chemical cyanogen (CN) except for Machholz 1, which has less than 1.5% of the normal level. Along with some other comets, it is also low on the molecules carbon2 and carbon3.
Schleicher suggests three possible explanations.
The simplest is that Machholz 1 could have formed in an extremely cold region of the solar system. The other comets depleted in carbon2 and carbon3 are thought to have formed in the chilly outer regions of the Kuiper belt far beyond Neptune, where the low temperatures mean that most carbon gets trapped in other molecules. "In really extreme cold, maybe the cyanogen goes away as well?" says Schleicher. Hurled out
A second possibility is suggested by the comet's peculiar orbit. Machholz 1 approaches very close to the Sun on its orbit, closer even than Mercury, so it is possible that repeated baking by the Sun's heat has removed most of its cyanogen.
But a more exciting idea is that Machholz 1 is an alien. "An extrasolar origin makes it easy to explain the composition - of course we'd expect everything to be different," Schleicher told New Scientist. "Here, three molecules with carbon are all depleted, so maybe carbon is depleted across the board? That sounds to me as if it came from somewhere else and is not just an oddball from our solar system."
Astronomers expect some comets to be hurled out of their stellar systems by the gravity of giant planets.
(Excerpt) Read more at newscientist.com ...
Alien Comets. Willing to do the planet blasting that other comets are willing to do.
We need to build a fence around the solar system to keep these illegal aliens out!
The return of Vger! Be afraid.
Rapture’s coming.
>Next you will hear that there are Klingons surrounding Uranus.
Dingleberry-pie anyone?
Alien Comets. Willing to do the planet blasting that other comets AREN’T willing to do.
Dangit, blew a punchline.
Interested for GGG?
I suppose our Congress will soon present legislation to grant galactic amnesty for alien comets.
McCain will work with Obama to grant the comet amnesty.
we better send the space battleship yamato to defeat the comet empire
Finally....Obama's Birthplace Revealed!!!!!!!!!!!!! ;)
there was a thread about how someone is claiming that aliens are protecting OBama...something about you can see lights around him or something. I can’t remember the details. It also talked about how one of the former astronauts who walked on the moon believes in aliens.
Better than Klingons invading Uranus....
While interesting, 150 measured comets isn't much of a baseline to establish "normal".
((FYI - the lights around Obama are sirens....;))
Trust me, folks, if you don't get the reference... consider yourselves lucky. :)
The heart of V'Ger
The center contained the oldest part of V'Ger – Voyager VI, an unmanned space probe launched by NASA in the late-1990s. The entire vessel surrounding the Voyager probe was built by an unknown race of machine entities in order to help it complete what the latter interpreted to be its primary programming: "learn all that is learnable," and return that knowledge to its creator. During its journey, the probe came to think of itself as V'Ger after the only remaining legible letters from its original name, and amassed knowledge to such a degree as to become self-aware.
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