| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| New studies say it's around 13.7 billion years old (give or take a few million years) | the universe | $800 | DJ | SCIENCE FACT | 2009-01-19 | #5611 | |
| A microwave detector put the precise age of this at 13.7 billion years (give or take 1%) | the universe | $600 | J | POPULAR SCIENCETOP STORIES OF 2003 | 2004-07-21 | #4593 | |
| Giordano Bruno thought this was infinite; Copernicus thought the Sun was the center of it | the universe | $200 | DJ | SCIENCE | 1993-05-25 | #2022 |