Question

How many countries got success for sending there robot to mars ? ​

Answer 1

Explanation:

Previously, the United States, the Soviet Union, the European Space Agency, and India have successfully sent spacecraft to enter Mars' orbit. There have been altogether 22 successful Mars missions of which the United States and the Soviet Union are the only two countries to land a spacecraft on Mars.

Answer 2

Answer:

United States and  Soviet Union

Explanation:

Previously, the United States, the Soviet Union, the European Space Agency, and India have successfully sent spacecraft to enter Mars' orbit. There have been altogether 22 successful Mars missions of which the United States and the Soviet Union are the only two countries to land a spacecraft on Mars.

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