| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| This color "shift" is the increase in wavelength of light emitted by a source moving away from an observer | the red shift | $800 | DJ | COLORFUL SCIENCE | 2021-01-05 | #8307 | |
| Color of the shift that scientists study to determine the distance of a quasar from Earth | the red shift | $400 | J | SCIENCE | 1991-09-12 | #1614 |