Crossword Puzzle Cosmic exploration org.

Clue: Cosmic exploration org.

Exploration organization (NASA with 4 letters)
One with electric organs (EEL with 3 letters)
Organism (e.g. AMEBA with 5 letters)
50-and-over organization (AARP with 4 letters)
Class-promoting orgs. (PTAS with 4 letters)
Organ near the temple (EAR with 3 letters)
Organization that won the 1977 Nobel Peace Prize, familiarly (AMNESTY with 7 letters)
News-finding organ? (NOSE with 4 letters)
Try to organize a union? (POPTHEQUESTION with 14 letters)
Fish's sawlike organ (SERRA with 5 letters)