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Location: UFOUpDatesList.Com > 1997 > Oct > Oct 3

Re: Magnetic Anomalies Found on Mars

From: RSchatte@aol.com [Rebecca Schatte]
Date: Fri, 3 Oct 1997 12:30:47 -0400 (EDT)
Fwd Date: Fri, 03 Oct 1997 12:54:22 -0400
Subject: Re: Magnetic Anomalies Found on Mars


---------------------
Forwarded message:
Subj:    Magnetic Anomalies Found on Mars
Date:    97-10-03 05:23:42 EDT
From:    AOL News

.c The Associated Press

      By JOHN ANTCZAK
      PASADENA, Calif. (AP) - Scientists could gain insight into Mars'
history and a record of a long-gone global magnetic field through
magnetic anomalies found by the Mars Global Surveyor spacecraft.

      The discoveries have come even as the spacecraft is in the
process of circularizing its long elliptical orbit by the novel
technique of aerobraking - dipping into Mars' upper atmosphere to
use drag rather than rockets to alter the orbit.

      The spacecraft has successfully done that nine times so far,
Project Scientist Arden Albee told a briefing at NASA's Jet
Propulsion Laboratory on Thursday.

      Mars Global Surveyor had earlier confirmed that Mars, unlike
Earth, has very weak global magnetic field. The new discoveries are
localized fields coming from areas in the crust - about 30 miles
deep - rather than from the planet's center.

      ``It appears the crust of Mars is strewn with multiple magnetic
anomalies,'' said Jack Connerney, a NASA Goddard Space Flight
Center scientist who is co-investigator on Global Surveyor's
magnetometer/electron reflectometer experiment.

      The anomalies are also far stronger than those found on Earth,
he said. While a compass on Earth might lead you home, a compass on
Mars would point in different directions depending on where it is
located.

      ``If you are a Boy Scout on Mars with a compass, you're lost,''
he said.

      Magnetic anomalies may occur where magma - liquid or molten rock
-rose and cooled, recording a magnetic signature of that epoch in a
planet's development.

      Mars Global Surveyor was launched Nov. 7, 1996, from Kennedy
Space Center and went into orbit Sept. 11. It is scheduled to begin
systematically mapping the planet next spring.

      AP-NY-10-03-97 0519EDT
Copyright 1997 The Associated Press.  The information
contained in the AP news report may not be published,
broadcast, rewritten or otherwise distributed without
prior written authority of The Associated Press.<FONT COLOR="#000000" SIZE=3>
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