Space

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Across
  1. 3. COMET WON’T ORBIT PAST EARTH AGAIN UNTIL 2061.
  2. 5. DAY ON VENUS IS LONGER THAN ONE YEAR.
  3. 6. is the sixth planet from the Sun
Down
  1. 1. is the second closest dwarf planet
  2. 2. STARS CAN SPIN 600 TIMES PER SECOND.
  3. 4. IS COMPLETELY SILENT.