Cryptic crossword clue
NASA’s concern: alien interfering in moon samples? 7

The most common and most likely answer to this crossword clue is the 7 letter word ROCKETS

R
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The straight part
We know that "NASA’s concern" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case nasa’s concern = rockets.
The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

What does ROCKETS mean?

ROCKETS noun
  1. A rocket engine.
  2. A non-guided missile propelled by a rocket engine.
  3. A vehicle propelled by a rocket engine.
  4. A rocket propelled firework, a skyrocket
  5. An ace (the playing card).
  6. An angry communication (such as a letter or telegram) to a subordinate.
  7. A blunt lance head used in jousting.
  8. Something that shoots high in the air.
  9. A stupid or crazy person.
ROCKETS verb
  1. To accelerate swiftly and powerfully
  2. To fly vertically
  3. To rise or soar rapidly
  4. To carry something in a rocket
  5. To attack something with rockets

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