Here are details about a :
Space commemorative cover
or Space Cover.
Cosmodrome / Location : USA
Date of Cancellation: Nov. 25, 1976
Event Type : Test
Launch Pad / Location : USA KSC (FL)
Manned / Robotic Mission : Robotic
Mission Objective/Type : Experimental / Science
ou?/where?: au sol - ground
autographe?: non - noneDescription : A report, "Viking relativity experiment: verification of signal retardation by solar gravity" published in 1979 by researchers at MIT and the Jet Propulsion Laboratory, analyzed 14 months of data obtained from radio ranging to Viking to verify the prediction of the general theory of relativity. The round-trip or echo delays of light signals traveling between the Earth and Mars would be increased by the direct effect of solar gravity. The theory included gravitational time dilation, where time passes differently in regions of different gravitational potential. Keyword(s) :
#Einstein,
#Mars and probes,
#Planet,
#Probe,
#Satellite,
#Sun, SPACE REVUE : 04 - 2003 Last modified: 04/29/2015 @ 22h08
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Page : future · Ref: USA 925
Space Event : VIKING 1 & 2 (MARTIAN ORBITERS & LANDERS) · EXTENDED MISSION
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