Re: Ice in space (Was: Present life on Earth (Was: Life outside the Earth))

Thanks Martin 53N 1W,
I'll have to further review your previous feedback. That's certainly an
impressive Kuiper/Oort zone like "Ring Around Fomalhaut" display of
what's chuck full of supposedly icy orbs. Speaking a little further
about such "ice in space";
Why bother impacting Tempel-1 when the same if not far better science,
as well as our moon and future lunar explorations can directly benefit
from our moon being impacted for 1% the cost.

DEEP IMPACT / Tempel-1 at supposedly 333 million via Arthur Andersen
need-to-know bucks X 2 = 666 million worth of actual hard earned bucks,
plus one hell of an amount of added pollution for mother Earth that the
next few generations get to pay for with their lives.
http://photojournal.jpl.nasa.gov/catalog/PIA02124
Notice how there's nothing as artisticaly suggested (excluding the
impact debris itself) as coming off that extremely dark/dirty comet,
thus obviously of what we perceive from Earth as a visually bright
comet is of whatever's getting dragged along for the ride by the
extremely slight gravity and/or more than likely created by the
horrific displacement formed tsunami of an energy shock-wave is perhaps
what's representing the affects from the terminal velocity aspects of
Tempel-1 traveling itself at nearly 60 km/s through space of < 1e9
atoms/m3 = 224e9 * 60e3 * 1e9 = 13.4e24 atoms/s displaced in addition
to whatever solar wind. As for having a mere 1.5 m/s/s escape velocity
seems rather unlikely that anything of physical substance remains as to
what we observe as a bright comet that is more than likely the pressure
wave and/or wake of mostly space gas/particles (perhaps as few as
1e9/m3) and not of the actual substance as excavated away from the
comet, that is until it gets into a bit closer than Mars to the sun,
whereas at 1.5 AU should begin sluffing/sublimation as to some degree
of a dry-ice coated and perhaps involving a possible internal core of
H2O/ice as vacuum extracted from within a highly poris rock as having
become a nearly coal black comet surface, that is unless the
surrounding shock-wave and/or electrostatic created energy field is
somehow insulating and thus shielding the surface from excessive solar
influx.

There's damn little associated gravity and thus little if any
measurable atmosphere associated with even a nearly stationary object
of such slight mass (at most 250e12 kg), however much less atmosphere
is possible if any as it's making a relative velocity of 60 km/s plus
having to encounter the likes of a somewhat typical 100+km/s worth of
solar wind which only gets a whole lot worse off as approaching the
sun. If the SM were of 1e9 atoms/m3, therefore the near surface
atmosphere of Tempel-1 can't hardly be ten fold greater. Our moon is
essentially a very large meteor that just so happens to be orbiting
Earth, whereas our moon that's also without any remainder of surface
ice that's just as likely due to it's having to travel at roughly 30
km/s and having been much closer to the sun as well as from the
secondary IR of earthshine, plus it's getting the brunt force trauma of
up to 1200 km/s worth of solar winds, whereas perhaps due to the lunar
gravity and existing slight atmosphere still doesn't manage to create
any comet like trail, at least not until getting sufficiently impacted
by loads of much smaller than Tempel-1 class of meteors, whereas
extremely small (under one kg) and even micro meteorite impacts have
from time to time released vast clouds of yellowish sodium and many
other such light-weight elements as having been created by the sort of
naturally occuring small and micro-deep-impact process (plus taking a
few of our NASA/Apollo related impacts), whereas such events have
vaporised many tonnes worth of lunar basalt, whereas the proportion of
sodium having been worth roughly 2.5~5% the mass of basalt(3.1~3.5
g/cm3), thereby affording as much as 0.1~0.15 g/cm3 as pure sodium,
plus there's nearly 50% the worth of basalt that's actually O2 which
hasn't been thus far recorded as any comet like trail because of the
somewhat O2 transparent deep green color and greater mass of the O2
element which should have remained as sufficiently attracted by the
lunar gravity, thus O2 gets trapped near the surface until a greater
than 600 km/s solar wind velocity excavated amounts of such O2 away.

http://www.nasa.gov/mission_pages/deepimpact/multimedia/0701-sunshine.html
Thus far it looks as though Tempel-1 is mostly coated or incrusted with
the likes of extremely dirty CO2 and CO that's possibly surrounding a
semi-solid core that's obviously affording much less density than
frozen H20. If there's rock to being had, it's extremely porous if not
of a significant hallow geode like configuration.

http://www.planetary.org/deepimpact/tempel1.html
An albedo of roughly 0.04 (4%) is clearly suggesting a somewhat if not
nearly black as coal object, thus the NASA DEEP IMPACT teams have
obviously utilized another great deal of extremely high sensitivity B&W
CCDs plus PhotoShop spin and skew upon their view of this comet as for
suggesting such as being somewhat more ice friendly, when in fact it's
more coal or dark basalt like and quite porus or most likely that of a
pumice. In fact, it's extremely low density of less than 1 g/cm3 has
been suggesting either a hollow item or that of a somewhat pumice rock
substance that's merely impregnated with a little ice, then an outer
layer of extremely dirty dry-ice having that top coating the likes of
carbon soot, iron and titanium dust that's very much like the nasty
substances upon our dark moon.

The 10.2 km/s impact was just the differential that's related to the
DEEP IMPACT, not the velocity of that comet.
http://www.planetary.org/deepimpact/di_crater.html
The orbital velocity with respect to our frame of existence is actually
up to 60 km/s, having an average relative velocity of 48 km/s has
clearly indicated as to what such a massive 14.4 by 4.4 by 4.4 km comet
as having an average frontal surface area of roughly 100e6 m2 (similar
to that of an 8.1 km sphere of 278e3 km3) creates quite an impressive
visual show as to the terminal velocity aspects of space travel.
Imagine what 10%LS or 30,000 km/s is going to cause, and I believe
that's the bare minimum we'll need to be traveling ourselves or at
least our robotic probes, that is if to be leaving our home solar
system in pursuit of another nearby alternative exoplanet that's
hopefully not going nearly as mainstream postal as Earth over their
remaining fossil fuel reserves that have for us been LLPOF taking us
into the nearest space-toilet.

BTW; Tempel-1 is not likely losing a required tonne/second, as by now
there wouldn't be half as much much left after less than 8,000 years.
Whereas solar wind is what shapes and/or distorts the visual comet head
and trail and shifts the vector as away from the sun. However, the
ionized gases surrounding, as well as for those partially ahead and of
course trailing are most likely caused by way of such objects exceeding
the natural terminal velocity or slug value of space travel, as the
slight friction of getting through a nasty cosmic soup mix of 1e6 to
1e9 atoms/m3 plus countless micro debris as going every which way but
lose to boot. Essentially, without a surrounding atmospheric or of some
electrostatic induced buffer zone, space travel at speeds much greater
than even 30 km/s is going to suck, and obviously much worse by a
factor of another million to one for the daunting task of making 30,000
km/s.

Martin 53N 1W; your following statement might also suggest that our
moon should be creating some of it's own comet like atmosphere, and
keeping more of it closer to the surface.
> This might explain why comets last so long in that they create their own
> 'atmosphere' that protects them a little.
Of course, I'm thinking comets tend to last so long because they have
very little raw ice to dispose of unless it's well protected within the
core. Keeping one's distance from the sun seems rater imperative if
there's any surface amounts of raw ice getting continually nailed to a
fairlywell.

http://www.planetary.org/deepimpact/di.html
Impact mechanics: Relative velocity between impactor and comet: 10.2
kilometers per second (22,800 miles per hour) Impact energy: 19
Gigajoules

According to their crater impact displacement figures, their 19
gigajoules is per m3 impactor roughly accomplishing 1e6:1 as per the
physical displacement/vaporising ratio of whatever DEEP IMPACT should
have accomplished at 10.2 km/s (per 372 kg including it's 144 kg copper
wedge) and, is that darn good crater results for vaporising mostly rock
and a little dry-ice or what?)

Obviously this next link has been offering somewhat entirely bogus
moon-science because, DEEP IMPACT at merely 10.2 km/s has supposedly
accomplished way better than a 100:1 diameter crater, possibly as great
as 200:1 as per charging itself into an extremely porous/pumice like
low-density surface of perhaps less than 0.9 g/cm3, of which within
it's porous rock contains amounts of frozen CO2 and CO along with only
a slight amount of H2O/ice deeper within.

http://www.lpi.usra.edu/expmoon/science/craterstructure.html
"Comets and asteroids strike the Moon at a wide range of impact speeds,
with 20 kilometers per second being typical. Such a high-speed impact
will produce a crater that is 10 to 20 times larger in diameter than
the impacting object."

20 km/s is essentially 4 times the KE value of what DEEP IMPACT had to
work with. However, since the moon is already making 30 km/s (+/- 1
km/s) and actually has an amount of gravity in it's favor of pulling
stuff in, whereas the same 372 kg impact at the differential of 20 km/s
(which just as well could become 50 km/s) should have amounted to 74
gigajoules and thus creating at least a similar 100+meter crater since
the lunar surface is roughly four times as dense as Tempel-1, although
our moon is covered in meters deep layers of unclumping carbon, iron
and titanium dust along with the secondary shards of lunar basalt that
creates the 11~12% albedo (that is as long as you disregard all of the
supposed Apollo moonsuit EVA science that sucks).

BTW No.2; your 603.5 years of a km3 worth of raw ice surviving at 1 AU
is getting downright truly impressive. Thus perhaps tossing
blocks/spheres of dry-ice having their core of frozen Rn-222 or
whatever dead bodies of LLPOF politicians and a few molesting SOBs, as
intended for impacting our moon is quite doable, and terrifically long
lasting at that, especially upon the moon where there's already a
slight atmosphere plus half the time everything gets summarily
re-subfrozen.
~

This is about my basic Township, Bridge & Tarmac upon Venus:
http://guthvenus.tripod.com/gv-town.htm
China/Russian LSE-CM/ISS (Lunar Space Elevator)
http://guthvenus.tripod.com/lunar-space-elevator.htm
A few alternative topics from wizard Brad Guth / GASA-IEIS
http://guthvenus.tripod.com/gv-topics.htm

.

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