Multiple choice general knowledge science & technology

How far have spacecraft from Earth travelled into space?

  1. A bit more than one Light-year

  2. A bit more than one Light-month

  3. Somewhat less than one Light-day

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Voyager 1, launched in 1977, is the farthest human-made object from Earth at over 160 astronomical units (about 24 billion km or 15 billion miles). One light-year is approximately 9.46 trillion kilometers. Voyager 1 has traveled less than 0.2% of one light-year. A light-day is about 26 billion kilometers, so Voyager 1's journey is somewhat less than one light-day from Earth.

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