r/jameswebb↗
James Webb Space Telescope
Welcome to /r/JamesWebb, the subreddit for NASA's James Webb Space Telescope. Launched on December 25th, 2021, the James Webb Space Telescope or JWST succeeds the highly successful Hubble telescope as NASA‘s flagship general purpose telescope in space. Unlike Hubble which sees in the visible light spectrum, the Webb telescope sees in infrared enabling it to answer different questions about our universe. The CSA & ESA also contributed All artistic creations can be submitted in r/jameswebb_art.
131k subscribers67 posts / mo in Sep 202624 authors / mosince 2012
r/jameswebb has 131k members (+5.9% over the last 12 months). It gets about 67 posts a month from 24 people. Top topics: JWST Galaxies Images, James Webb Space Telescope Updates and James Webb Galaxies Cluster.
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How r/jameswebb has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/jameswebb
Top topics
Share of the subreddit's posts
- JWST Galaxies Images24%
- James Webb Space Telescope Updates5.8%
- James Webb Galaxies Cluster5.0%
- Galaxy Observations0.9%
- Nebula Gallery0.8%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Bluesky Social
- Bluesky
- NASA
- STScI
- arXiv.org e-Print archive
Everything else about r/jameswebb
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research