Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/4826002
Is Reference of Escape from earth-en#Sense
Frigørelse fra jordens tiltrækning-da#Sense
Liberación terrestre-es#Sense
Libération de l'attraction terrestre-fr#Sense
Beschleunigung auf Fluchtgeschwindigkeit-de#Sense
Libertação da ação gravítica-pt#Sense
Απελευθέρωση από την γήϊνη έλξη-el#Sense