Answer:

NOGO

Answer	Crossword Clue
NOGO	Aborted launch
NOGO	Canceled
NOGO	Canceled, to NASA

NOGO	Canceled, NASA-style
NOGO	Nixed by NASA
NOGO	Thumbs-down at NASA
NOGO	Mission-scrapping words
NOGO	Forbidden
NOGO	NASA negative
NOGO	Astronaut's negative
NOGO	NASA cancellation

NOGO	Off
NOGO	Aborted, at NASA
NOGO	NASA scrub
NOGO	Nixed, at NASA
NOGO	Scrubbed, at NASA
NOGO	Canceled, at NASA
NOGO	Scrubbed, so to speak
NOGO	Scrapped, at NASA

NOGO	Scrubbed, as a space launch
NOGO	Failed attempt
NOGO	Canceled, slangily
NOGO	Mission abortion
NOGO	Scrubbed
NOGO	Aborted mission words
NOGO	Not happening at NASA
NOGO	Canceled, as a NASA mission

NOGO	Not functioning, in NASA-speak
NOGO	"Fuhgeddaboudit!"
NOGO	Aborted
NOGO	Inoperative
NOGO	Canceled, as a mission
NOGO	Canceled, in NASA-speak
NOGO	Mission cancellation
NOGO	Scuttled mission

NOGO	Scrapped space shot
NOGO	Aborted operation
NOGO	Cape Kennedy cancellation
NOGO	"Mission aborted"
NOGO	NASA decision