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r/iss

A subreddit dedicated to the International Space Station.

Subscribers

17,083

Created

July 12, 2012

14 years ago

View on Reddit
RedPulse insight

How to think about r/iss

The community is dedicated to discussions, news, and updates about the International Space Station (ISS). Members share insights on various aspects of the ISS, including its scientific missions, technology, and the astronauts who inhabit it. The focus on real-time events and scientific advancements sets this community apart, fostering a space-centric dialogue that appeals to enthusiasts and professionals alike.

Confidence 4/5

  • Audience

    Participants in this community are typically space enthusiasts, students, and professionals in the fields of science and engineering. The demographic skews towards a younger audience, often comprising individuals with a keen interest in space exploration and technology. Members engage with the content out of curiosity and a desire to learn more about the ISS and its contributions to science.

  • Posting culture

    The posting culture emphasizes informative and well-researched content, with a preference for high-quality images, videos, and links to credible sources like NASA. Posts that are overly promotional or lack substance tend to be downvoted. Members appreciate detailed discussions and often engage in technical debates, making thoughtful contributions more likely to thrive. The community is active but not overly fast-paced, allowing for in-depth conversations.

  • Brand engagement notes

    Brands looking to engage with this community should focus on providing educational content that aligns with the interests of space enthusiasts. Authenticity is key; overt promotional tactics are likely to be met with skepticism. Collaborations with scientists or educational initiatives that enhance understanding of space exploration can resonate well. Sharing behind-the-scenes insights or innovative technologies related to the ISS may also foster positive engagement.

Top keywords

What r/iss talks about

Weighted by how often each term appears in posts and comments, relative to baseline frequency. The largest words are the strongest signals of community focus.

3m61e13m42e0spacesuitmullingwidthspropellantnot\compressorsvayreattachflyoverbrighteningsubframe395utilisedspacecraftberthentry=tturecaptureastronaut7605tastronautsobservatoryaftmicrobesairtightorbitsdata=254zippedurinateresupplydockingarraysselectsthrusterstimelapseproposeswigglingissmishappower:image:orbitingpavingsatellitesejection166propulsionsharpened12amcoolantsightingrotationaldepartingshorthanddocks

Top contributors

Who shapes the conversation

The most active and most-upvoted posters and commenters in this community. Useful when planning outreach or studying a community's tastemakers.

Top posters

By post count

By votes

Top commenters

By comment count

By votes

Similar communities

Where this audience also spends time

Topic-adjacent communities surfaced from Reddit's own related subreddit signal.

FAQ

r/iss — frequently asked questions

Quick facts about this subreddit's size, history, focus, and related communities.

How many subscribers does r/iss have?

r/iss has approximately 17,083 subscribers as of May 27, 2026.

When was r/iss created?

r/iss was created on July 12, 2012 (14 years ago).

What is r/iss about?

The community is dedicated to discussions, news, and updates about the International Space Station (ISS). Members share insights on various aspects of the ISS, including its scientific missions, technology, and the astronauts who inhabit it. The focus on real-time events and scientific advancements sets this community apart, fostering a space-centric dialogue that appeals to…

What subreddits are similar to r/iss?

Communities similar to r/iss include r/spacelaunchsystem, r/ula, r/spaceshuttle, r/spaceflight, r/spaceexploration.

Who are the most active posters on r/iss?

The most frequent posters on r/iss include u/Galileos_grandson, u/liamkennedy, u/TheMuseumOfScience.

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