[meteorite-list] Panspermia, Reverse Panspermia & Life In Space
Meteorites USA
eric at meteoritesusa.com
Fri Jun 5 01:48:33 EDT 2009
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
>>
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