We have presented detected molecules, atoms, radicals, ions, and dimers in the atmospheres of planets and comets from Earth-based and spaceborne observatories during the last 3 decades. We have reviewed spectroscopic studies on the auroral emissions and air glows of the giant planets, and briefly summarized spectroscopic observations of dimers in the atmospheres of the giant planets and Titan. In particular, we highlighted the recent detections of new molecular emissions and absorptions in the spectra of the giant planets, Titan, and recent bright comets from spaceborne or ground-based observatories. We also reviewed current models and theories of the origin and evolution of the solar system, and implications of isotopic ratios in these atmospheres.

• 김상준(경희대학교 우주과학과) | KIM SANG JOON (Dept. of Astronomy and Space Science, Kyunghee University)
• 이영식(경희대학교 화학과) | LEE YOUNG SIEK (ept. of Chemistry, Kyunghee University)
• 이유(충남대학교 천문우주과학과) | YI YU (Dept. of Astronomy and Space Science, Chungnam National University)
• 김용하(충남대학교 천문우주과학과) | KIM YOUNG HA (Dept. of Astronomy and Space Science, Chungnam National University)