Panier Recherches : timbres, enveloppes.

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Here are details about a :
Space commemorative cover
or Space Cover.

Kosmodrom / Ort : USA

Stempeldatum: 28 Déc. 2025
Ereignisart : Test
Startrampe / Ort : USA Edwards AFB (CA)
Bemannte / Robotische Mission : Bemannt
Missionsziel/-typ : Experimentell / Wissenschaft

SCIENCE

ou?/where?: au sol - ground
autographe?: non - none

Beschreibung : The sonic boom is a pollution and nuisance that hits the ground throughout the trajectory of a supersonic plane (broken windows, etc.). The X-59 is a NASA prototype aimed at validating techniques to mitigate this effect.
This was at the time the excuse found by the USA to prohibit the flight over the United States by a supersonic jet, the Concorde.

Schlüsselwort/-wörter :
#Flaggen,
#Luftfahrt,

WELTRAUM-REVUE : 05 - 2026

Letzte Änderung: 30/06/2026 @ 08h59