Signal of first known exomoon may actually be from Jupiter-like planet

https://www.newscientist.com/article/2194289-signal-of-first-known-exomoon-may-actually-be-from-jupiter-like-planet/

Is this an exomoon, or something else?

Is this an exomoon, or something else?

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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