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View Full Version : Flyby Anomalies Explained?



Fraser
2008-Sep-19, 04:20 AM
Several different spacecraft have exhibited unexplained changes in speed during gravity assists when flying by Earth. First there was Galileo in 1990 and 1992, NEAR, which flew by Earth in January 1998, and then Cassini in August of 1999. Rosetta — the ESA spacecraft that recently flew by an asteroid swung by [...]

More... (http://www.universetoday.com/2008/09/18/flyby-anomalies-explained/)

pzkpfw
2008-Sep-19, 05:08 AM
"All these probes showed an unexpected change in speed during the flyby." ?

trinitree88
2008-Sep-19, 04:48 PM
"All these probes showed an unexpected change in speed during the flyby." ?

pzkpfw. Yes. There was a calculated velocity increase due to the slingshot effect, and speeds were not consistent with that. The solution on Fraser's link is simple and physically elegant. Nice work guys. pete:clap:

ravens_cry
2008-Sep-19, 05:52 PM
I was hoping for something weird in the works, something that forced us to reexamine our certainties, but this is certainly elegant. Bravo!

Svemir
2008-Sep-19, 08:52 PM
Read all 3 solutions (Dark Matter, Unruh, transvers Doppler) and felt instantly that this is the right one.