# Tag Info

Surely not a gas giant... Mercury is a rock of 0.05 $\rm m_{\oplus}$, such a mass could never grow into a gas giant (For detail see Piso & Youdin (2014), fig. 6, where you can see that below a planet mass of 5 $\rm m_{\oplus}$ the growth time of a significant atmosphere for a planet exceeds the lifetime of protoplanetary discs, i.e. is not possible). I ...