How many followers does Mike Massimino have on X?

Mike Massimino (@Astro_Mike) currently has 1,044,721 followers on X (Twitter), losing 2,394 followers in the last 7 days. The count is refreshed continuously from public data.

When did Mike Massimino join X (Twitter)?

Mike Massimino joined X in April 2009, making the account about 17 years old.

How many posts has Mike Massimino published?

Mike Massimino has published 6,310 posts on X, averaging about 1 posts per day over the account's lifetime.

Is Mike Massimino verified on X?

Yes. Mike Massimino is verified on X with a blue checkmark (X Premium).

Mike Massimino

@Astro_Mike

English ScienceTier S

View on X

#74 in Science

New York, NYJoined April 2009 (17 years on X)x.com

Followers

1.0M

Growth (7d)

-2.4K

Following

430

Influence

Posts

6.3K~1/day

Likes given

2.5K

Media posts

2.7K

Follower ratio

2.4K:1

Insights

In the last 7 days @Astro_Mike lost 2,394 followers.

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Follower growth

2026-06-23-8 over 2 days2026-06-24

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.

Scott Kelly4.7M NASA Solar System3.0M Brian Cox3.0M Craig Ferguson2.2M NASA Mars1.6M

More Science accounts

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Mike Massimino on X - frequently asked questions

How many followers does Mike Massimino have on X?: Mike Massimino (@Astro_Mike) currently has 1,044,721 followers on X (Twitter), losing 2,394 followers in the last 7 days. The count is refreshed continuously from public data.
When did Mike Massimino join X (Twitter)?: Mike Massimino joined X in April 2009, making the account about 17 years old.
How many posts has Mike Massimino published?: Mike Massimino has published 6,310 posts on X, averaging about 1 posts per day over the account's lifetime.
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".