Related Clues:

• Astronomer's sighting, sometimes
• Certain variable star
• It's super when exploding
• Temporary superstar?
• Show in outer space?
• PBS science program
• Star with potential
• PBS staple
• Cataclysmic explosion
• __ Scotia, Canada
• Flaring star
• Source for an outburst
• Bossa __
• Star explosion
• Stellar burst