A team of astronomers has confirmed the existence of a young planet,only 11 million years old, that orbits very close to its star (at 0.05 AU), or with an orbital period of 5.4 days. Approximately 5 times the size of the soil,the unusual planet is a "super-Neptune" and the youngest such planet known. The discovery lends unique insights into the origin of planetary system architectures.
Source: phys.org