[meteorite-list] Panspermia, Reverse Panspermia & Life In Space
From: Meteorites USA <eric_at_meteoritecentral.com>
Date: Thu, 04 Jun 2009 22:48:33 -0700 Message-ID: <4A28B1B1.10804_at_meteoritesusa.com> Nice! ;) LOL Greg Hupe wrote: > Yep! > Here's proof: > http://foreverloyal.files.wordpress.com/2008/09/marvin_the_martian.jpg > > > ----- Original Message ----- From: "Meteorites USA" > <eric at meteoritesusa.com> > To: <meteorite-list at meteoritecentral.com> > Sent: Friday, June 05, 2009 1:17 AM > Subject: [meteorite-list] Panspermia, Reverse Panspermia & Life In Space > > >> Hi list, >> >> I know I've posted a lot today, but bear with me. I've been doing >> some research since I found the article on the meteorite that Mars >> rover Opportunity found on Mars earlier and it got me to thinking >> about how it got there and where it was from. This led to more >> research and more questions... >> >> We know meteorites come from other celestial bodies, whether they be >> from asteroids, comets, or planets. All types of meteorites have been >> found on Earth but... What about the reverse? >> >> We know it happens because we have lunar and martian meteorites here >> on Earth. Over the last few months I've been reading about panspermia >> and artificial planet seeding too which are very interesting topics. >> >> You can imagine the force a huge asteroid would exert on the crust of >> our planet during an impact event and would eject quite a bit of >> material into space. >> >> This all brings up some very interesting questions... If Panspermia >> is a theory, then wouldn't reverse panspermia (life originating from >> Earth) suggest it's very plausible and not just possible to seed life >> on other planets from another by impact, travel and time? >> >> Having said that let me illustrate a scenario. A huge asteroid >> impacted Earth millions of years ago throwing millions of tons of >> debris into our atmosphere. Some of this debris will escape Earth's >> gravity and make it into space. How much is arguable. Wouldn't it be >> possible for some microbe or bacteria to be preserved deep inside a >> clump of Earth, and flash frozen in the iciness of space? >> >> How many billions of bacteria, and microbes, or even insects have >> been launched into space over the hundreds or even thousands of large >> impacts the Earth has been subject to since the beginning of time? >> Look at the jungles of South America and Africa and other tropical >> regions. The density of life in any given square foot is higher than >> on any other place on the planet. If a large Asteroid impacted this >> region you can imagine the sheer numbers of "life forms" that escaped >> Earth. >> >> Survivability is the issue. If the microbe or "life form" is deep >> enough within the stone, rock, or clump of earth, wouldn't it be >> preserved. wouldn't this Earth rock act as a capsule to transport >> life outside our own solar system? Current science tells us that the >> temperature of the interior of a meteoroid entering our atmosphere is >> relatively low. In fact it is usually ambient to space. In other >> words cold! Frozen even. This is sufficient to allow a microbial life >> form to survive isn't it? Look up Water Bear on Google... >> >> http://www.astrobio.net/news/modules.php?op=modload&name=News&file=article&sid=2905&mode=thread&order=0&thold=0 >> >> >> http://www.space.com/scienceastronomy/081016-am-tardigrade-toughness.html >> >> >> Wouldn't this mean that there could be space rocks out there with >> "life" within them right now? Life that came from Earth? And if >> there's life out there that comes from Earth, it wouldn't take a >> rocket scientist to guess that there might be other material out >> there that might just have come from another habitable solar system. >> I know these are big jumps and guesses, but isn't it possible >> considering the sheer length of time, the age of our planet, and the >> number of impact events over this time period on other celestial >> bodies and planets? >> >> I mean we are talking about billions of years here... >> >> Your thoughts? >> >> -- >> Regards, >> Eric Wichman >> Meteorites USA >> http://www.meteoritesusa.com >> 904-236-5394 >> >> ______________________________________________ >> http://www.meteoritecentral.com >> Meteorite-list mailing list >> Meteorite-list at meteoritecentral.com >> http://six.pairlist.net/mailman/listinfo/meteorite-list >> Received on Fri 05 Jun 2009 01:48:33 AM PDT |
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