Sputnik
Unmanned - Space probes are a form of robotic spacecraft.
The first unmanned spacecraft, Sputnik 1, was launched by the Soviet Union on October 4, 1957. It marked the beginning of the space age and initiated the space race between the United States and the Soviet Union.
The Russian unmanned spacecraft that landed on the moon was Luna 2. It was the first human-made object to reach the lunar surface in 1959.
there is no man in the space craft
Some of the Russian space crafts are Soyuz, Progress, and Vostok. Soyuz is used for crewed missions to the International Space Station, Progress is an unmanned cargo spacecraft, and Vostok was the spacecraft that carried the first human, Yuri Gagarin, into space.
Unmanned - Space probes are a form of robotic spacecraft.
The first unmanned spacecraft, Sputnik 1, was launched by the Soviet Union on October 4, 1957. It marked the beginning of the space age and initiated the space race between the United States and the Soviet Union.
it has to have had no humans
A space probe is an unmanned spacecraft sent into space.
The Russian unmanned spacecraft that landed on the moon was Luna 2. It was the first human-made object to reach the lunar surface in 1959.
there is no man in the space craft
Some of the Russian space crafts are Soyuz, Progress, and Vostok. Soyuz is used for crewed missions to the International Space Station, Progress is an unmanned cargo spacecraft, and Vostok was the spacecraft that carried the first human, Yuri Gagarin, into space.
An unmanned spacecraft launched specifically to explore the unknown is called a probe or an unmanned exploration spacecraft. These spacecraft are equipped with sensors, cameras, and scientific instruments to gather data and conduct experiments in uncharted territories.
Spacecraft is the generic term there are both manned and unmanned types such as satellites for the unmanned variety.
The first American spacecraft designed to hold two people was the Gemini capsule, which made its maiden voyage into space (unmanned test flight) in April, 1963. The first Soviet spacecraft designed to hold two people was the Voshkod capsule, which made its first unmanned test flight in June, 1964.
The most obvious answer to your question is the fact that people have to return to earth, while an unmanned craft can stay in space infinitely. Manned spacecraft require things like oxygen, water, food and communications equipment, none of which are required by an unmanned spacecraft. That means unmanned spacecrafts can be sent into space for a fraction of the cost of a manned spacecraft. So basically, it's much cheaper and safer to send unmanned spacecrafts to explore the universe.
A space shuttle is a reusable spacecraft designed for human spaceflight, carrying astronauts to and from space. A space probe is an unmanned spacecraft designed to explore other planets, moons, or asteroids without carrying humans. Spacecraft is a general term that encompasses both manned (space shuttles) and unmanned (space probes) vehicles designed for space exploration.