Viking 2, Pathfinder and Phoenix are the names of:

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Q: 6 (IES/2015)
Viking 2, Pathfinder and Phoenix are the names of:
The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with lasers shining between the craft.” The experiment in question refers to (a) Voyager-2 (b) New Horizons (c) LISA Pathfinder (d) Evolved LISA

question_subject: 

Geography

question_exam: 

IES

stats: 

0,97,80,43,97,11,26

keywords: 

{'spacecrafts': [0, 0, 0, 1], 'artificial satellites': [0, 0, 1, 0], 'viking': [0, 0, 0, 1], 'mars': [1, 1, 1, 1], 'radio telescopes': [0, 0, 0, 1], 'astronomical studies': [0, 0, 0, 1], 'pathfinder': [0, 0, 0, 1], 'phoenix': [0, 0, 0, 2], 'intercontinental ballistic missiles': [0, 0, 0, 1], 'names': [4, 5, 4, 7], 'earth': [0, 1, 1, 1]}

The correct answer is option 2: Spacecrafts sent towards Mars. The names Viking 2, Pathfinder, and Phoenix are associated with space exploration missions to Mars.

The Viking 2 mission was launched in 1975 by NASA and it included an orbiter and a lander. The lander successfully touched down on the Martian surface in September 1976 and performed experiments to search for signs of life.

Pathfinder, also known as the Mars Pathfinder mission, was launched in 1996 and it included a lander and a small rover called Sojourner. The mission successfully landed on Mars in July 1997 and sent back valuable data and images of the Martian surface.

Phoenix was another spacecraft sent to Mars. It was launched in 2007 and it included a lander. The mission`s main objective was to search for signs of microbial life in the Martian soil and to study the history of water on Mars.

Therefore, Viking 2, Pathfinder, and Phoenix are all names of spacecraft that were specifically sent towards Mars for the purpose of exploration and scientific research.