All economical. Loss of viable payload space and associated fuel wastage. Training, provision of on-board human environmental support systems and communications. The need for a very expensive return trip to earth and recovery of the vehicle.
The first manned spacecraft to orbit the moon was the Apollo 8 spacecraft.
Unmanned
Vostok I
Manned spacecraft are very useful because it is easier to see and do things first hand than relying on only readouts from machines and senors.
Unmanned - Space probes are a form of robotic spacecraft.
As of yet, there have been no manned Mars spacecraft at all.
The first manned spacecraft to orbit the moon was the Apollo 8 spacecraft.
Vostok I
Unmanned
Manned spacecraft are very useful because it is easier to see and do things first hand than relying on only readouts from machines and senors.
Unmanned - Space probes are a form of robotic spacecraft.
Yes Neil Armstrong was on both the Gemini spacecraft as well as the Apollo 11 spacecraft.
Freedom 7.
Vostok I.
Its the ussr
X33 concept space
spaceshuttle