Question

please answer the questions please​

Answer 1

Answer:

Wernher von Braun proposal (1947 through 1950s) Wernher von Braun was the first person to make a detailed technical study of a Mars mission. Details were published in his book Das Marsprojekt (1952, published in English as The Mars Project in 1962) and several subsequent works.

Answer 2

Answer:

Wernher von Braun proposal (1947 through 1950s) Wernher von Braun was the first person to make a detailed technical study of a Mars mission. Details were published in his book Das Marsprojekt (1952, published in English as The Mars Project in 1962) and several subsequent works.

Answer 3

Answer:

Wernher von Braun proposal (1947 through 1950s) Wernher von Braun was the first person to make a detailed technical study of a Mars mission. Details were published in his book Das Marsprojekt (1952, published in English as The Mars Project in 1962) and several subsequent works.