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by Casey Kazan et al
June 19, 2010
from
RealityZone Website
Mars' Moon Phobos has been analyzed as being one-third hollow
according to European Space Agency reports, which has triggered some
wild and utterly fascinating rumors and speculation that we've
featured below.
From the European Space Agency's "The Phobos Blog" -
published on 25 March, 2010:
Radio science result from 2008 Phobos Flyby now accepted for
publication:
"We report independent results from two subgroups of
the Mars Express Radio Science (MaRS) team who independently
analyzed Mars Express (MEX) radio tracking data for the purpose of
determining consistently the gravitational attraction of the moon
Phobos on the MEX spacecraft, and hence the mass of Phobos.
We
conclude that the interior of Phobos likely contains large voids.
When applied to various hypotheses bearing on the origin of Phobos,
these results are inconsistent with the proposition that Phobos is a
captured asteroid.
For a Martian moon that is demonstrably "1/3 hollow," as measured by
two totally independent space programs, and separated by ~20
years... under any likely astrophysical formation scenario cannot
exist as just a "natural" moon.
The MARSIS radar imaging experiment-
according to "inside" ESA sources- recounted "a Phobos' interior
filled with 'cavernous, geometric rooms... right-angle walls... and
floors - detectable via the semi-regular 'structure of the
returning, interior radar echoes...' as they were impressed upon the
reflected MARSIS signals."
MARSIS was physically seeing (via this radar) a three-dimensional,
totally artificial, interior world within Phobos; and a "reflection
void interior geometry"... which correlated eerily with the earlier
(lower-resolution) Phobos "interior gravity tracking data."
No
natural "space rock" could possibly possess such an enormous range
of "natural radar absorbers and reflectors"; nothing "natural" could
reflect (or absorb) EM energy that way across so many orders of
magnitude.
In other words - the MARSIS radar reflections officially published on
the official ESA Phobos website contained explicit scientific data,
from multiple perspectives, which strongly,
"supported the idea that
this is what radar echoes would look like, coming back from inside, 'a huge... geometric... hollow spaceship'.
In fact, they were the
primary source of the decidedly "internal, 3-D geometric-looking"
radar signature.
The concurrence of all three of these independent
Mars Express experiments- "imaging," "internal mass distribution,"
(tracking) and "internal radar imaging"- now agreed that "the
interior of Phobos is 'partially hollow with internal, geometric
"voids" inside it.'"
Meaning that Phobos is artificial."
Acceptance of Report by Geophysical Research Letters:
"The technical paper discussing the mass and density of Phobos, as
determined during the 2008 flyby, has been accepted by Geophysical
Research Letters:
The abstract is:
We report independent results from two subgroups of
the Mars Express Radio Science (MaRS) team who independently
analyzed Mars Express (MEX) radio tracking data for the purpose of
determining consistently the gravitational attraction of the moon
Phobos on the MEX spacecraft, and hence the mass of Phobos.
New
values for the gravitational parameter (GM=0.7127 ± 0.0021 x 10-³
km³/s²) and density of Phobos (1876 ± 20 kg/m³) provide meaningful
new constraints on the corresponding range of the body's porosity
(30% ± 5%), provide a basis for improved interpretation of the
internal structure.
We conclude that the interior of Phobos likely
contains large voids. When applied to various hypotheses bearing on
the origin of Phobos, these results are inconsistent with the
proposition that Phobos is a captured asteroid.
The full reference in GRL will be:
Andert, T. P., P. Rosenblatt, M.
Pätzold, B. Hausler, V. Dehant, G.L. Tyler, and J. C.
Marty(2010),
Precise Mass Determination and the
Nature of Phobos,
Geophys. Res. Lett., doi:10.1029/2009GL041829, in press. (accepted
22 March 2010)
(Source)
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