| Answer | Crossword Clue |
|---|---|
| SAGAN | American astrophysicist |
| HALE | Famous American astrophysicist. |
| TYSON | Astrophysicist Neil deGrasse ... |
| NEIL | Astrophysicist ... deGrasse Tyson |
| VANALLENEXTRACT | Passage from astrophysicist James's book? |
| RAJ | "The Big Bang Theory" astrophysicist |
