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Are There Aliens Already on Earth?
Astrobiology Magazine ^ | 02/20/06

Posted on 02/20/2006 5:28:16 PM PST by KevinDavis

Conspiracy theorists will readily tell you that the U.S. military is hiding alien corpses in a secret facility in the Nevada desert. But paleontologist and University of Washington geology professor Peter Ward thinks that scientists should be looking for a different type of alien life on earth: alien microbes. Ward is the author of several popular books about astrobiology, including the controversial Rare Earth, co-authored with Donald Brownlee. In his latest book, Life as We Do Not Know It, Ward addresses an issue often avoided by astrobiologists. Although all known life on Earth has a similar DNA-based chemistry, life found on other worlds may not. In chapter 6 of Life as We Do Not Know It, reprinted below, Ward takes this argument one step further. There may, he says, be unfamiliar life forms on Earth, as well. And scientists would be wise to search for them.

(Excerpt) Read more at astrobio.net ...


TOPICS: Miscellaneous; News/Current Events
KEYWORDS: aliens; artbell; astronomy; bogusheadline; cryptobiology; darklife; deeplife; donaldbrownlee; erroneouskeywords; et; extremophiles; helixmakemineadouble; kooks; panspermia; peterward; rareearth; rareearthnonsense; science; thomasgold; tinfoil; xplanets
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To: KevinDavis

"Today there are approximately 1500 aliens living and working in Manhattan and most of them are decent enough, they're just trying to make a living."
"Cab drivers?"
"Not as many as you'd think."


41 posted on 02/20/2006 6:06:30 PM PST by RichInOC ("...Imagine what you'll know tomorrow.")
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To: Frank_Discussion
What if you found a live sample that metabolized non-carbon food sources, or had waste gasses not consistent with terrestrial metabolic products?

This has already been done, and no one that I have ever seen has claimed them to be extraterrestrials.

methanogens

42 posted on 02/20/2006 6:07:03 PM PST by Vince Ferrer
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To: KevinDavis
Nope. Our government couldn't even prevent 9/11.

What makes anyone think they are smart enough to keep something like this secret?

43 posted on 02/20/2006 6:08:29 PM PST by manwiththehands (Fighting daily against the dominant RINO culture.)
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To: KevinDavis

Yeah, Souter for one.


44 posted on 02/20/2006 6:09:06 PM PST by Dionysius (ACLU is the enemy)
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To: Sola Veritas
As you may have noticed, whenever Panspermia or issues related to Panspermia is brought up the Evolutionists clam up or make jokes.

They dislike the idea that life came from somewhere else more than they dislike the story in Genesis (which, BTW, has life coming from somewhere else).

These guys want everything to have happened just on Earth, and nowhere else, and in a "just-so" pattern that demonstrates that life is either an accident, or a foregone conclusion resulting from the application of currently understood Natural Laws.

The gentleman who went out and found another few million "genes" didn't find them in bacteria alone ~ he's counting the different viruses he found. The oceans are filled with vast numbers of different viruses ~ they're doggoned near immortal you know. He thinks we ought to construct an artificial lifeform (a cellular form) into which we could start plugging the genes he's found to see what they do (or, what they were "designed" to do since many of them could be the products of industrial and other processes on billions of worlds long gone elsewhere in the Universe).

You might want to take a look at the February Discover magazine. Has a great article, and some throught provoking speculation on the MIMIVIRUS, which has more genes than many bacteria. This critter may be the "mother of us all" for all anyone knows, but it sure is complex ~ and big ~ it's the biggest virus ever found.

45 posted on 02/20/2006 6:11:57 PM PST by muawiyah (-)
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To: Vince Ferrer

That's right, I've heard of those critters. Interesting. My question just kind of popped into my noggin.


46 posted on 02/20/2006 6:15:03 PM PST by Frank_Discussion (May the wings of Liberty never lose a feather!)
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To: null and void; indcons
From your lips to nobody's keyboard...

I wish. I am a firm believer that ANYONE that posts her pic on a thread for ANY REASON should have an automatic 2 hour suspension for the first offense with penalties increasing from there.

47 posted on 02/20/2006 6:19:49 PM PST by houeto (Mr. President, close our borders now!)
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To: Vince Ferrer
The only way you could tell an alien microbe from a non alien microbe would be to go to a place in outer space, say Mars, and find microbes there that are identical to something that exists on Earth.

Actually, I will have to retract this, because even this won't work. There is a theory called Convergent Evolution:

convergent evolution: The evolution of species from different taxonomic groups toward a similar form; the development of similar characteristics by taxonomically different organisms.

Convergent evolution would predict that microbes on different planets which never had contact could still evolve similarly given similar environments. We could not look at two populations of the same thing on two different planets and claim that one population came from the other.

48 posted on 02/20/2006 6:20:58 PM PST by Vince Ferrer
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To: KevinDavis
Conspiracy theorists will readily tell you that the U.S. military is hiding alien corpses in a secret facility in the Nevada desert.

I went to Area 51 this past weekend to take pictures of the signs and had lunch at the Lil' Ale-Inn in Rachel, NV.

I haven't read the article yet, but if there are/were other life forms out there, it makes sense to me, thinking about it right now, that signs of such life could show up on our planet as microbes or something similar, catching a ride on an asteroid (sp?).

I'll go read your link now.

49 posted on 02/20/2006 6:24:03 PM PST by feefee (rovian salt carrier)
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To: KevinDavis

50 posted on 02/20/2006 6:32:34 PM PST by LibFreeUSA
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To: KevinDavis

"We don't have to show you no steenking badges!"


51 posted on 02/20/2006 6:36:02 PM PST by Revolting cat! ("In the end, nothing explains anything.")
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To: KevinDavis
Aliens? What aliens?


52 posted on 02/20/2006 6:40:43 PM PST by Revolting cat! ("In the end, nothing explains anything.")
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To: KevinDavis
Yes KevinDavis, there are Aliens among us...


53 posted on 02/20/2006 6:41:59 PM PST by Dallas59 ((“You love life, while we love death"( Al-Qaeda & Democratic Party))
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To: razorback-bert
everyone knows the corpses are kept at Wright-Patterson airbase in Ohio.

Who cares about alien corpses. But you are right about one thing. There are no dead aliens in Nevada.

54 posted on 02/20/2006 6:43:13 PM PST by PAR35
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To: RichInOC
"Today there are approximately 1500 aliens living and working in Manhattan and most of them are decent enough, they're just trying to make a living." "Cab drivers?" "Not as many as you'd think."

41 posted on 02/20/2006 6:06:30 PM PST by RichInOC ("...Imagine what you'll know tomorrow.")

Are you for real! LOL! Love your tagline as well. LOLOL!

55 posted on 02/20/2006 6:45:19 PM PST by phantomworker ("Few is the number who think with their own minds and feel with their own hearts." -Albert Einstein)
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To: PatrickHenry
"ALIENS AMONG US!!!" Ping List

Don't ask to be added to or dropped from this list. Just don't.

That's so funny!!!

56 posted on 02/20/2006 6:46:50 PM PST by phantomworker ("Few is the number who think with their own minds and feel with their own hearts." -Albert Einstein)
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To: pcottraux
Possible cryptobiology ping? BTW, welcome to the wonderful world of FR ping list management. I hope you find it as rewarding as the rest of us have.

The main drawback to this guy's idea is, since the only possible alien life ever found was on Mars (Gilbert Lewin's experiment on the Viking landers), there's no way to know if everything was introduced from elsewhere (and therefore non-native) or was introduced from elsewhere and overwhelmed the native stuff, or whether oddball microfossils were introduced but went extinct.

While I've been interested in Hoyle et al's panspermia ideas for years, it seems to me that the extremophiles are more likely to be the original natives. :')
57 posted on 02/20/2006 6:47:47 PM PST by SunkenCiv (The love of learning, the sequestered nooks, And all the sweet serenity of books. (Longfellow))
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To: KevinDavis

Washington, DC is crawling with them.


58 posted on 02/20/2006 6:49:24 PM PST by B4Ranch (No expiration date is on the Oath to protect America from all enemies, foreign and domestic.)
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To: phantomworker

Don't laugh either.


59 posted on 02/20/2006 6:49:25 PM PST by PatrickHenry (Virtual Ignore for trolls, lunatics, dotards, scolds, & incurable ignoramuses.)
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To: PatrickHenry; All

What if I did ask to be added to the Aliens Among Us Ping List??


60 posted on 02/20/2006 6:50:49 PM PST by KevinDavis (http://www.cafepress.com/spacefuture)
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