Are they exomoons or not? Scientists debate the existence of the first moons seen outside our solar system

Are they exomoons or not?  Scientists debate the existence of the first moons seen outside our solar system

Astronomers have always known that discovering moons around planets outside the solar system wouldn’t be easy — but the current debate in planetary science circles shows just how difficult it is to discover so-called exomoons.

The story begins in 2018, when astronomers, including David Kipping, an assistant professor of astronomy at Columbia University, thought they had discovered the first extrasolar moon. The topic was found around the exoplanet Kepler-1625b, a Jupiter-like world located about 8,000 light-years from Earth. It was initially observed by the Kepler space telescope.

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