Newsgroup: it.discussioni.misteri
Titolo: Sistema Solare e forze misteriose

Se ne parlava qualche giorno fa in alcuni thread... ecco una notizia a
riguardo che descrive l'imbarazzo dei dinosauri da accademia.
The Raelian Movement
for those who are not afraid of the future : 
http://www.rael.org
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Source:
http://education.guardian.co.uk/higher/sciences/story/0,12243,1302857,00.html
Space probes feel cosmic tug of bizarre forces
Robin McKie, science editor
Sunday September 12, 2004
The Observer
Something strange is tugging at America's oldest spacecraft. As the
Pioneer 10 and 11 probes head towards distant stars, scientists have
discovered that the craft - launched more than 30 years ago - appear to be
in the grip of a mysterious force that is holding them back as they sweep
out of the solar system.
Some researchers say unseen 'dark matter' may permeate the universe and
that this is affecting the Pioneers' passage. Others say flaws in our
understanding of the laws of gravity best explain the crafts' wayward
behaviour.
As a result, scientists are to press a European Space Agency (Esa)
meeting, called Cosmic Visions, in Paris this week for backing for a
mission that would follow the Pioneers and pinpoint the cause of their
erratic movements.
The strange behaviour of the Pioneers - which swept by Jupiter and Saturn
in the Eighties - was discovered by John Anderson and Slava Turyshev of
the Jet Propulsion Laboratory in Pasadena and Michael Martin Neito of the
Los Alamos National Laboratory.
They had been tracking the probes using the giant dishes of Nasa's Deep
Space Network. By the time the two spaceships had swept beyond Pluto, they
noted there were persistent anomalies in their trajectories. Every time
they looked the Pioneers were in the wrong place. The effect was not
large, but it was significant. Something more than the Sun's gravity
appeared to have a grip on the craft.
The reasons for the anomaly have caused a rift among physicists, however.
Some believe the effect may simply be flaws with the probes. Gas from fuel
tanks may be leaking from them, slowing their passages, say some
astronomers. 'Unless there is really good evidence to the contrary, we
should stick to simple ideas like these and not go around blaming strange
new types of particle or flaws in general relativity,' said Professor
Martin Barstow, of Leicester University.
But this view has been rejected by Anderson. 'It's hard to imagine such a
leak happening on both probes at the same time in such a way as to produce
an identical acceleration,' he said.
And most scientists back him. 'The effect is real,' said Bernard Haisch of
the California Institute for Physics and Astrophysics.
One proposal put forward is that Newton's idea that the force of gravity
weakens as distance increases may be incorrect over very large spaces, and
may drop off over very long distances.
'It is time to settle the Pioneer issue with a new deep-space mission that
will test for, and decide on, the anomaly,' Anderson, Turyshev and Nieto
state in Physics World .
By fitting a Pioneer follow-up probe with new measuring equipment,
navigational device and communications gear, it should be possible to
discover if the probes are in the grip of a new force of nature.
-- 
Carlos
"Il Big Bang che tanti usano per dimostrare
il momento della creazione non č esistito.
Ma se fosse esistito, sarebbe stata la prova
che dio si č sparato."
cabb5...@hotmail.com
Prima di scrivermi disinnescate le c@22@t3

 una supposta
 Message-id: 
6p6q901u7gvd5hqur...@4ax.com

Francamente non vedo dove sia il mistero.
Probabilmente le nostre conoscenze in materia di spazio e forze di varia
natura sono semplicemente troppo primitive, almeno per il momento, per
spiegare il fenomeno che ha interessato le 2 sonde Pioneer.