Mariner 10
There were two: Mariner 10 and Messenger.
Mercury.
The one man spacecraft was called the Mercury .
The First spacecraft was the MESSENGER. The First spacecraft was the MESSENGER.
Redstone.
'MESSENGER' is the Mercury Mission - See the related link listed below for more information:
The first US manned spacecraft was named Mercury.
None. Mercury was discovered before spacecraft were invented.
Alan Shepard named his Mercury spacecraft "Freedom 7" to symbolize the spirit of freedom and the seven Mercury astronauts who were part of the program. Each Mercury spacecraft was given a unique name, often reflecting themes of exploration, American ideals, or personal significance to the astronaut. The naming process involved the astronauts themselves, who contributed ideas and worked with the public relations team to select names that resonated with the mission's purpose and their own identities.
Gemini. Mercury had one astronaut at a time, Gemini had two, and Apollo had three.
Mercury Friendship 7 (John H. Glenn, USA) was the first spacecraft to orbit the Earth three times.
No person went on Mercury or might not ever go on Mercury because of its average temperature of 700degres Fahrenheit or around 350degres Celsius.