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Old 01-March-2008, 04:02 AM
William William is offline
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Join Date: Jun 2007
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Default Spacecraft Motion Anomalies

Additional Spacecraft motion anomalies.

http://www.space.com/scienceastronom...t-anomaly.html

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Mysteriously, five spacecraft that flew past the Earth have each displayed unexpected anomalies in their motions. …
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These newfound enigmas join the so-called "Pioneer anomaly" as hints that unexplained forces may appear to act on spacecraft. …
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A decade ago, after rigorous analysis, anomalies were seen with the identical Pioneer 10 and 11 spacecraft as they hurtled out of the solar system. Both seemed to experience a tiny but unexplained constant acceleration toward the sun.
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…Now Jet Propulsion Laboratory astronomer John Anderson and his colleagues — who originally helped uncover the Pioneer anomaly — have discovered that five spacecraft each raced either a tiny bit faster or slower than expected when they flew past the Earth en route to other parts of the solar system.
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