In relation to the Norwegian’s spiral sighting (December 9. 2009) and others past UAP sightings, two Russian scientific papers explaining the physics behind such optical phenomena.

Rockets launches and associated tracks left by expended rockets plumes moving through the sky are often responsible for UAP mis-identifications (e.g. Norway 2009, Petrozavodsk 1977).  Indeed most spectacular bursts of luminosity are due to special modes of rockets engine’s operations, e.g. separation of rocket stages or shutdown of solid fuel rocket engines.

Two recent Russian scientific papers from Dr S. Chernouss (past member of the Setka(net) past UFO projects of the Russian Academy of Sciences and the Russian Ministry of Defense), Dr Y. Platov and others, describe examples of ”man-made” aurora and discuss their common features, appearances, visual properties and physical mechanisms. Moreover, the authors underline the fact that dynamics of luminous clouds connected with the exhaust product interaction with components of the upper atmosphere can be efficiently used as a method of active experiments in near-Earth space, at a low price.

References:

Optical phenomena associated with the launch of a ballistic missile  BULAVA” December 9, 2009.

http://pgia.ru:81/seminar/archive/2010/6_atmosphere/06-07_Platov.pdf

Optical Phenomena due to Rocket Exhaust Products in the Atmosphere.

http://helion-ltd.ru/opti-phenomena-rocket-exh/