# Bill Nye on Reddit (u/sundialbill)

Part of Scientists on Reddit, researched with Autumn (https://www.autumn.ai) from public sources. Updated 2026-11-07. Interactive version: https://www.autumn.ai/resources/scientists-on-reddit/bill-nye

Bill Nye: Science educator, Bill Nye the Science Guy.

- Reddit account: [u/sundialbill](https://www.reddit.com/user/sundialbill/) (AMA only)
- How we know it's theirs: [The 2017 r/IAmA AMA, posted from this account](https://www.reddit.com/r/IAmA/comments/66ajul/)
- Where they post, in the records we retrieved: r/IAmA (207), r/movies (2), r/space (1)
- Known activity in the posts we found: 2012 to 2017
- Wikipedia: https://en.wikipedia.org/wiki/Bill_Nye

## Moments

### u/sundialbill in r/IAmA, Nov 5, 2014 · AMA answer

In the thread "Bill Nye, UNDENIABLY back. AMA.".

> Earth. Earth is my favorite planet.
>
> All my friends are here, and I stay here for the air.

Full thread: https://www.reddit.com/r/IAmA/comments/2le34s/comment/cltxyuj/ · 3,084 points as of Nov 7, 2026

### u/sundialbill in r/IAmA, Nov 5, 2014 · Explains things

Replying to a redditor:

> In your opinion, what is the most important discovery in the last 10 years?

> That the universe is *not* slowing down in its expansion, it's accelerating.
>
> And, do you know why?
>
> NOBODY KNOWS WHY!

Full thread: https://www.reddit.com/r/IAmA/comments/2le34s/comment/cltybsn/ · 3,988 points as of Nov 7, 2026

### u/sundialbill in r/IAmA, Apr 19, 2017 · Explains things

Replying to a redditor:

> Hey Mr. Science guy! I grew up watching your show and it definitely influenced my path towards engineering. My question is what science fact absolutely blows your mind?

> You and I are made of the same material as the stars. We are star dust. Therefore, you and I are at least one way that the universe knows itself. Cue the spooky music.

Full thread: https://www.reddit.com/r/IAmA/comments/66ajul/comment/dggxv8b/ · 14,231 points as of Nov 7, 2026