space hard MCQ

Voyager 1 crossed the heliopause into interstellar space in which year?

  1. 2004
  2. 2012
  3. 2018
  4. 2021

Answer: 2012

Voyager 1 crossed the heliopause on Aug 25, 2012, becoming the first human-made object to enter interstellar space, confirmed by plasma density jump.

Topic Space Missions - Deep Space
Exam Relevance UPSC Prelims, General Science
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