Question

Set of people who landed on Mars before 1994

Answer 1

Step-by-step explanation:

The period 1981-1986 was an optimistic one for U.S. piloted spaceflight. The Space Shuttle was flying and anything seemed possible - even humans on Mars. One of the earliest pre-Challenger optimistic Mars missions was British engineer Robert Parkinson's "Mars in 1995!" Beyond Apollo blogger David S. F. Portree looks back at Parkinson's plan for a NASA piloted Mars mission based on European Spacelab modules and Shuttle and Space

NASA's Space Shuttle was conceived in the late 1960s as a fully reusable transport for reducing the cost of Earth-orbiting space station logistics resupply and crew rotation. In 1969, it came to be seen as an element in an expansive Integrated Program Plan that would also have included upgraded expendable Saturn V rockets, reusable manned Space Tugs and nuclear-propulsion cislunar Shuttles, Earth-orbital and lunar-orbital space stations, a lunar surface base, and manned Mars expeditions - all by the mid-1980s. This vision of America's future in space found little favor in the Nixon White House or in Congress, however. By 1973, only the Space Shuttle survived, and then only in a partially reusable form.