Astronomer CEO Andy Byron and the company's HR head Kristin Cabot are in hot water after they were caught cuddling at Coldplay's concert earlier this week ... because the company's launching an investigation into their relationship.

The company announced the investigation Friday morning ... telling its followers, and more importantly its investors, that Astronomer is looking into the matter and "will have additional details to share very shortly."

Astronomer also used the opportunity to clear the air ... announcing a woman identified as a VP in the human resources department was not at the concert despite reports ... and Byron has not actually released a statement yet. Play video content

ICYMI ... two people were caught cuddling on a Jumbotron before diving away from one another

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