2019
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Juno
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Opportunity
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Voyager 2
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Skylab
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Detailed explanation-1: -Voyager 1 is the first space craft to travel beyond the solar system and reach interstellar space.
Detailed explanation-2: -Voyager 1 entered interstellar space in 2012. Currently, three projects are under consideration: Chinese Interstellar Express, NASA’s Interstellar Probe, and StarChip from the Breakthrough Initiatives.
Detailed explanation-3: -As of 2022, the Voyagers are still in operation past the outer boundary of the heliosphere in interstellar space.
Detailed explanation-4: -But farther-much farther-Voyager 1, one of the oldest space probes and the most distant human-made object from Earth, is still doing science. The probe is well into the fourth decade of its mission, and it hasn’t come near a planet since it flew past Saturn in 1980.
Detailed explanation-5: -For example, Voyager 2 traversed the heliopause - the boundary between the heliosphere and interstellar space - when the probe was 119 astronomical units (AU) from the sun. (One AU is the average Earth-sun distance, which is about 93 million miles, or 150 million kilometers.)