Dr David Brown, of the University of Warwick's Astronomy and Astrophysics Group, comments on the potential discovery of an exomoon:

“The new observations with Hubble provide good evidence for the presence of an exomoon.

"The secondary decrease in the star’s brightness is interesting on its own, but combined with the other effects seen by Hubble it is quite compelling. An exomoon is the simplest explanation, which is really exciting.”

4 October 2018

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