Related Clues:

• "Don't bother"
• Scrubbed, as a mission
• 'Fuggedaboudit'
• Scratch, at NASA
• Unable to launch
• "Forget it!"
• NASA negative
• Aborted
• Canceled, at NASA
• Like some launches
• Not working properly
• Thumbs down, NASA-style
• Cancellation
• Cancelled
• Scuttled mission