Imagine an exoplanet, a gas giant orbiting its star while a moon orbits the planet itself. What is it now: a moon or a planet? AdvertisingThey modelled the likely behaviour of giant exomoons predicted to form around massive planets — and found that they would be expelled and sent packing, they say in a statement released by Australia’s Macquarie University. If such a scenario does take place, these “ploonets”, could potentially explain several puzzling phenomena. Why have astronomers not yet confirmed the existence of a single exomoon, when they found over 4,000 exoplanets?

Source: Indian Express July 17, 2019 19:07 UTC