There is no credible evidence that Coldplay's Chris Martin accidentally exposed astronomer CEO Andy Byron having an affair with his HR chief Kristin Cabot.
Fact Check: "Coldplay's Chris Martin accidentally exposes astronomer CEO Andy Byron having an affair with his HR chief Kristin Cabot."

FactVerify
Source: factverify.com
Key Evidence
Newsweek reports that Andy Byron and a female colleague appeared on a jumbotron during a Coldplay concert but does not confirm any affair or exposure by Chris Martin.
newsweek.comnewsweek.comCEO Caught on Jumbotron During Coldplay Concert Leads to Affair Accusations
Other sources repeating the claim are social media posts and entertainment gossip sites without credible verification.
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No official or reputable news outlets corroborate the affair or accidental exposure.
What the Evidence Shows
The claim asserts that during a Coldplay concert, Chris Martin accidentally exposed an affair between astronomer CEO Andy Byron and his HR chief Kristin Cabot. Breaking down the claim, it involves three key components: 1) the involvement of Chris Martin in exposing the affair, 2) the existence of an affair between Andy Byron and Kristin Cabot, and 3) the exposure occurring at a Coldplay concert. The search results primarily consist of social media posts, entertainment gossip sites, and forum threads repeating the claim without providing verifiable evidence or credible sources.
The only somewhat authoritative source, Newsweek,newsweek.comnewsweek.comCEO Caught on Jumbotron During Coldplay Concert Leads to Affair Accusations mentions that Andy Byron and a female colleague appeared on a jumbotron during a Coldplay concert but does not confirm any affair or involvement by Chris Martin in exposing such a situation. Other sources are either user-generated content or entertainment gossip with no substantiation. There is no official statement from Andy Byron, Kristin Cabot, Coldplay, or any reputable news outlet confirming the affair or that Chris Martin was involved in exposing it.
Given the lack of credible evidence and reliance on viral social media rumors, the claim appears to be fabricated or at best unsubstantiated gossip. The context suggests this is likely a misinterpretation or exaggeration of a moment captured on camera at a concert rather than proof of an affair or intentional exposure by Chris Martin.