Here are details about a :
Space commemorative cover
or Space Cover.
Cosmodrome / Location : USA
Date of Cancellation: Feb. 5, 1974
Event Type : Launch
Launch Pad / Location : USA KSC (FL)
Manned / Robotic Mission : Robotic
Mission Objective/Type : Venus
ou?/where?: au sol - ground
autographe?: non - noneDescription : Kennedy Space Center post stamp and Mariner 10. Closest approach being 5,768 km at 17:01 UT. Using a near-ultraviolet filter, it photographed the Cytherean chevron clouds and performed other atmospheric studies. It was discovered that extensive cloud detail could be seen through Mariner`s ultraviolet camera filters. Venus`s cloud cover is nearly featureless in visible light. Earth-based ultra-violet observation did reveal some indistinct blotching even before Mariner 10, but the detail seen by Mariner was a surprise to most researchers. Keyword(s) :
#Planet,
#Probe,
#Sun,
#Venus and probes, This is OUTSIDE of a Space Revue. Last modified: 04/07/2015 @ 16h15
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USA 672 | 17,- |
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Page : future · Ref: USA 672 Space Event : MARINER 10 (VENUSIAN PROBE) · FLYBYS OF VENUS & MERCURY
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