Related Clues:

• Soap-opera story lines
• Changes direction
• Slithering hissers
• Orbit bits
• Swings
• Medusa's hair
• Travels parabolically
• Sails temporarily off course
• Fly-ball paths
• Bottle rocket paths
• They have sliding scales
• Eyebrow shapes
• Moves side to side, like an aircraft
• Suddenly changes course
• Orbital segments