Thanks to Help from Hubble, The First Confirmed Exomoon? (IMAGE)

American Association for the Advancement of Science (AAAS)

Thanks to Help from Hubble, The First Confirmed Exomoon?

Caption

Artist's impression of the exoplanet Kepler-1625b with it's large hypothesized moon. The pair have a similar mass and radius ratio to the Earth-Moon system but scaled up by a factor of 11.

Credit

Dan Durda

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