Where did the hot Neptunes go? A shrinking planet holds the answer

'Where did the hot Neptunes go?' This is the question astronomers have been asking for a long time, faced with the mysterious absence of planets the size of Neptune. Researchers have just discovered that one of these planets is losing its atmosphere at a frantic pace. This observation strengthens the theory that hot Neptunes have lost much of their atmosphere and turned into smaller planets called super-Earths.

from Latest Science News -- ScienceDaily https://ift.tt/2Gg2mt7