A Negative Event With No Plan or Obvious Cause
This page is the CodyCross answer for the clue below from Space Exploration, Group 913, Puzzle 3 (Judith Resnik).
Question is: A Negative Event With No Plan or Obvious Cause
and the answer is: ACCIDENT
Word Meaning:
ACCIDENT — An unexpected event with negative consequences occurring without the intention of the one suffering the consequences, and (in the strict sense) not directly caused by humans.
Definitions from Wiktionary.