Complex sentence: Phaethon will approach to 18.1 Gm on December 10,2007, and coming closer still in 2017,2050,2060, and closer still on December 14,2093, passing within 0.0198 AU (3.0 Gm).
Split into simpler sentences: Phaethon will approach to 18.1 Gm on December 10,2007. It draws nearer in 2017,2050,2060, and closer still on December 14,2093, passing within 0.0198 AU (3.0 Gm).