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r/interstellar↗

Interstellar

Welcome to the subreddit dedicated to the movie Interstellar!

127k subscribers152 posts / mo in Sep 2026 (incl. ~1% by known bots)129 authors / mosince 2013

r/interstellar has 127k members (+15% over the last 12 months). It gets about 152 posts a month from 129 people. Top topics: Interstellar Theories, Interstellar Discussions and Interstellar IMAX.

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Free report

When to post on r/interstellar

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Visitors without an account can open 3 subreddit reports a day. The best time to post on r/interstellar, removal risk and the rest of the report are one step away.

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Size and growth

How r/interstellar has grown

r/interstellar

Subscriber growth

Subscribers over time

+15%in 12 months · +2.7% in 3 months · +0.4% in 1 month
Oct 2026126k
Growing126k subscribers
Data since Mar 2018Live · through Oct 2026
r/interstellar

Monthly activity

Posts, comments and authors per month

−12%vs Sep 2025 · −26% last 3 months vs the 3 before
Sep 2026152
QuieterPeaked at 1.8k in Dec 2024
Sep 2026: incl. ~1% by known botsData through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/interstellar

Top topics

Share of the subreddit's posts

  1. Interstellar Theories13%
  2. Interstellar Discussions6.9%
  3. Interstellar IMAX2.8%
  4. Interstellar Discussion2.6%
  5. Interstellar IMAX Tickets & Releases2.6%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. Lego System
  2. IMDb
  3. etsy
  4. Eventbrite
  5. Wolfram

The full report

Everything else about r/interstellar

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.

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Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research