| Clue | Answer | |
|---|---|---|
|
|
||
| Binary stars (5) | ||
| Heavenly explosions (5) | ||
| Suddenly bright stars (5) | ||
| Blazing stars (5) | ||
| Starbursts (5) | ||
| Astronomical flare-ups (5) | ||
| Stars that flare (5) | ||
| Star bursts (5) | ||
| Exploding stars (5) | ||