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Wobbling exoplanet hints at a hidden exomoon so massive it could redefine the word 'moon' altogether

"In our solar system, the most massive moon is Ganymede, which is still extremely small compared to what we are inferring ...
The Daily Galaxy on MSN

Astronomers detect alien moon so massive it might redefine what a moon is

A new study published as a pre-peer-reviewed paper on arXiv and accepted for publication in Astronomy & Astrophysics suggests ...

VLT’s GRAVITY Instrument Detects ‘Tug’ from Colossal Exomoon; Could Be Largest Natural Satellite Ever Found

According to the new research, astronomers have employed the Very Large Telescope's technology, known as GRAVITY and have ...