EnglishBrian Cox is on Twitter (X) as @ProfBrianCox, with 2,995,430 followers and 32,821 posts. It lost 1,299 followers in the last 7 days and 1,248 in the last 30 days. A typical post draws 486 interactions, an engagement rate of 0.016% per follower.
Insights
Over the last 30 days @ProfBrianCox lost 1,248 followers (-0.04%). In the last 7 days the change was -1,299 followers. Its strongest tracked day added +10,990 followers on Jun 23, 2026.
Engagement
A typical post picks up 486 interactions against 3.0M followers, an engagement rate of 0.016%. Posts are seen about 84K times each, and 0.579% of those impressions turn into an interaction. That is about 2.81% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.67 post a day over the last 30 days, though only 40% of days saw any activity at all.
Measured over 10 original posts from a 30-day window, last computed on October 28, 2026. Recurring tags: #cern, #lab26, #physics.
Full engagement reportFollower growth
Best tracked day: +11K followers on 2026-06-23.
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Bio
Professor of Particle Physics at The University of Manchester
Notable followers
The biggest accounts in our directory following @ProfBrianCox.
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Brian Cox on Twitter (X) - frequently asked questions
- What is the Twitter handle for Brian Cox?
- Brian Cox posts on Twitter (X) as @ProfBrianCox. The profile is at x.com/ProfBrianCox, and the View on X button at the top of this page opens it.
- How many followers does Brian Cox have on Twitter?
- Brian Cox (@ProfBrianCox) has 2,995,430 followers on Twitter (X). It lost 1,299 followers in the last 7 days and 1,248 in the last 30 days. The count is refreshed continuously from public data.
- When did Brian Cox join Twitter?
- Brian Cox joined Twitter (X) in December 2008. The @ProfBrianCox account is 17 years old. Searches for Brian Cox age often mean a personal age, which we do not publish. The figure here is the account age only.