# Ed Lu on Reddit (u/edluB612)

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/ed-lu

Ed Lu: NASA astronaut and physicist, B612 Foundation.

- Reddit account: [u/edluB612](https://www.reddit.com/user/edluB612/) (AMA only)
- How we know it's theirs: [The 2014 r/IAmA AMA, posted from this account](https://www.reddit.com/r/IAmA/comments/1vycym/)
- Where they post, in the records we retrieved: r/IAmA (153), r/space (22), r/B612Foundation (6), r/worldnews (1)
- Known activity in the posts we found: 2012 to 2020
- Wikipedia: https://en.wikipedia.org/wiki/Ed_Lu

## Moments

### u/edluB612 in r/IAmA, Aug 13, 2012 · Personal story

Replying to a redditor:

> I think we need to hear this full story, please!

> We were actually just getting suited up on ISS for a spacesuit test.  Yuri and I were in the airlock, and all buttoned up in our EVA suits.  Then the cooling failed in my suit.  But the suit generates a lot of heat due to the electronics and also the fact that the CO2 removal system uses an exothermic reaction to remove CO2.  So within a few minutes the airflow into my suit got really really hot (think of a parking lot in Houston on a summer day but while wearing a snowmobile suit_)

Full thread: https://www.reddit.com/r/IAmA/comments/y5vn0/comment/c5snmzf/ · 60 points as of Nov 7, 2026

### u/edluB612 in r/IAmA, Jan 23, 2014 · Personal story

Replying to a redditor:

> What do you think Carl Sagan would have to say about the B612 Foundation and your work?

> BTW, the only time I actually spoke to Carl Sagan was when I was an undergrad at Cornell.  I was late for something and running down a hall in the physics building.  I came around a corner and nearly ran over Dr. Sagan!  The only words I ever said to him were "excuse me!".  So I've got that going for me......

(Excerpt.)
Full thread: https://www.reddit.com/r/IAmA/comments/1vycym/comment/cewzll0/ · 37 points as of Nov 7, 2026

### u/edluB612 in r/IAmA, Jan 23, 2014 · Personal story

Replying to u/edluB612:

> Apollo 13! and of course Galaxy Quest.

> BTW, my crewmates and I on Shuttle mission STS-106 all watched Galaxy Quest in crew quarters just before our launch!  "Never Give Up!"

Full thread: https://www.reddit.com/r/IAmA/comments/1vycym/comment/cewz2fu/ · 197 points as of Nov 7, 2026