Related Clues:

• The beginning of space, perhaps
• Prefix with drome or space
• Bic tip?
• Start for plane or sol
• Flying start?
• Prefix with -naut
• Dynamics prefix
• Prefix meaning ''highest''
• Designed to minimize drag
• Intro to space
• Sol's beginning?
• Aviation prefix
• Dynamic opening?
• Space heading?
• Prefix with gramme