Related Clues:
- Bright star can turn savage into sage
- PBS science show for 45 seasons
- Streaking space item
- PBS science show since 1974
- Astronomical explosion
- Hubble observation
- Orbiting ice ball
- Star showing a sudden, brief increase in luminosity
- Course one's taken in river rising somewhere in Canada
- Stellar flare-up
- Overly bright star
- Astronomical phenomenon to arrive on time
- Star flaring up
- Traveller to arrive on time
- Powdered cleaning product