EnglishMike Massimino Twitter (X) stats, updated continuously. @Astro_Mike has 1,042,986 followers and 6,312 posts on X. Account age: 17 years (joined April 2009).
Engagement
Early reading. We have captured 3 original posts for this account, below the 8 we require before treating a median as settled. The numbers above describe what we have seen so far, not a finished profile of the account.
A typical post picks up 55 interactions against 1.0M followers, an engagement rate of 0.005%. Posts are seen about 8.9K times each, and 0.618% of those impressions turn into an interaction. That is about 0.853% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.1 posts a day over the last 30 days, though only 10% of days saw any activity at all.
Measured over 3 original posts from a 30-day window, last computed on August 31, 2026.
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Follower growth
Bio
Former @NASA Astronaut, NY Times Best Selling Author of #Spaceman, Professor at @Columbia, Sr. Advisor @IntrepidMuseum
Notable followers
The biggest accounts in our directory following @Astro_Mike.
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Mike Massimino on Twitter (X) - frequently asked questions
- How many followers does Mike Massimino have on X?
- Mike Massimino (@Astro_Mike) has 1,042,986 followers on X (Twitter). The count is refreshed continuously from public data.
- When did Mike Massimino join X, and how old is the account?
- Mike Massimino joined X in April 2009. The @Astro_Mike account is 17 years old. Searches for Mike Massimino age often mean a personal age, which we do not publish. The figure here is the account age only.
- How many posts has Mike Massimino published?
- Mike Massimino has published 6,312 posts on X. That is about 1 posts per day over the life of the account.
- Is Mike Massimino verified on X?
- Yes. Mike Massimino is verified on X with a blue checkmark (X Premium).
- What does Mike Massimino post about?
- Mike Massimino is classified under Science in our directory. Bio: "Former @NASA Astronaut, NY Times Best Selling Author of #Spaceman, Professor at @Columbia, Sr. Advisor @IntrepidMuseum".