Questions and Answers
Which organization has not sent robotic landers and rovers to Mars as of 2023?
Boeing
When did the conceptual proposals for missions involving human explorers start?
Early 1950s
Who has proposed the idea of terraforming Mars?
NASA
Which agency has not proposed human missions to Mars?
Signup and view all the answers
What is the farthest humans have been beyond Earth as of 2023?
Signup and view all the answers