NASA, ESA, and L. Hustak (STScI)
The first suspected moon found beyond our solar system may not be quite as it seems. A team of astronomers say the data behind the initial discovery is inconclusive, and suggest an unseen planet is a more plausible explanation.
In 2017 astronomers David Kipping and Alex Teachey from Columbia University in New York said they had found evidence for an exomoon orbiting the exoplanet Kepler-1625b, located about 8,000 light-years from Earth. In 2018, the pair firmed this up, using data from …
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source: newscientist.com