We find that the Exomoon hypothesis heavily relies on a chain of delicate assumptions,
all of which need to be further investigated," the researchers wrote.
However,"careful consideration of its statistical evidence
leads us to believe that this is not a secure Exomoon detection," Heller and his colleagues wrote in their paper,
which was published this month in the journal Astronomy & Astrophysics.
For the time being, we take the position that the first Exomoon has yet to be detected,
as the likelihood of an Exomoon around Kepler-1625b cannot be assessed with the methods used and data currently available.".