Black hole jets may turn 'mini-Neptunes' into rocky worlds
A US-based study has predicted that Neptune-like planets near the centre of the Milky Way were transformed into rocky planets by emissions from a supermassive black hole within 70 light-years. Researchers found the X-ray and ultraviolet radiation would blast away a large amount of the thick gas atmosphere, converting the exoplanets into bodies heavier than Earth called super-Earths.