The exoplanet, named K2-288Bb, could either be a rocky world like Earth or a gas-rich planet like Neptune.
Neptune is not mentioned or evidenced anywhere else in the article.
Neptune would not survive in the habitable zone as gas-rich
Neptune is 17x the mass and 50+ x the volume of Earth
Sure officer, I got a good look at him...between 3' and 9' tall, 120 to 1500 lb, heavily dressed or naked...sure, I'd recognize him anywhere!