Sortida extraveïculara
Una sortida extraveïculara es una activitat realizada dins l'espaci — a l'exterior d'un veïcul espacial — per un espacionauta vestit d'una combinason espaciala.
Aquela expression es mai sovent utilizada per las activitats extraveïcularas realizada en orbita a l'entorn de la Tèrra prèp d'un veïcul espacial (spacewalk), mas se referís tanben a las sortidas sus le superfícia lunara (moonwalk). Atal, las sortidas extraveïcularas son utilas per d'òbras d'assemblatge o de reparacion de navetas espacialas e de las estacions espacialas coma a l'exploracion e la culhida de mòstras lunaras.
La primièra sortida extraveïculara se faguèt pel cosmonauta sovietic Alexei Leonov lo 18 de març de 1965, dempuèi la nau Voskhod 2. L'American Edward White o seguèt mens de tres meses mai tard, lo 3 de junh.
Nòtas e referéncias
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