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A space probe is a robotic spacecraft that leaves Earth's orbit and explores space. Which among the following was the first space probe to maintain orbit around another planet?
  • a)
    Mariner 10
  • b)
    Mars 3
  • c)
    Mariner 9
  • d)
    Sojourner
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A space probe is a robotic spacecraft that leaves Earths orbit and exp...
Mariner 9

Mariner Mars '71
 
Mariner-I
 was a 
robotic spacecraft
 that contributed greatly to the exploration of 
Mars
 and was part of the 
NASA
 
Mariner program
. Mariner 9 was launched toward Mars on May 30, 1971
 from 
LC-36B
 at 
Cape Canaveral Air Force Station
Florida




Is Mariner 9 still in orbit ?

The Mariner 9 mission officially ended on Oct. 27, 1972. Once the spacecraft had run out of altitude gas, it was shut off and left in orbit. 
It was estimated to remain in space for at least 50 years until the orbit decays
, at which point it will enter the Martian atmosphere.

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Community Answer
A space probe is a robotic spacecraft that leaves Earths orbit and exp...
In 1971, the Mariner 9 spacecraft became the first spacecraft to orbit another planet. While in orbit, Mariner 9 mapped 85 percent of the Martian surface, an objective it inherited from the failed Mariner 8 mission, and collected valuable information about Mars' surface and atmosphere.
The Mariner 9 mission resulted in a global mapping of the surface of Mars, including the first detailed views of the martian volcanoes, the polar caps, and the satellites Phobos and Deimos.
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A space probe is a robotic spacecraft that leaves Earths orbit and explores space. Which among the following was the first space probe to maintain orbit around another planet?a)Mariner 10b)Mars 3c)Mariner 9d)SojournerCorrect answer is option 'C'. Can you explain this answer?
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