96.50.-e Interplanetary space (for asteroids, see 96.30.Y) ( 0 Dok. )

• 96.50.Bh Solar electric and magnetic fields (including solar wind fields) ( 0 Dok. )
• 96.50.Ci Solar wind plasma ( 0 Dok. )
• 96.50.Dj Interplanetary gas and dust (including gegenschein and zodiacal light) ( 0 Dok. )
• 96.50.Ek Solar wind interactions with planets, satellites, and comets (for interactions with Earth, see 94.30.V) ( 0 Dok. )
• 96.50.Fm Shock waves ( 0 Dok. )
• 96.50.Gn Comets ( 0 Dok. )
• 96.50.Hp Oort cloud ( 0 Dok. )
• 96.50.Jq Kuiper belt ( 0 Dok. )
• 96.50.Kr Meteors, meteoroids, and meteor streams ( 0 Dok. )
• 96.50.Mt Meteorites, micrometeorites, and tektites ( 0 Dok. )
• 96.50.Pw Particle acceleration ( 0 Dok. )
• 96.50.Qx Stream-stream interactions ( 0 Dok. )
• 96.50.Ry Waves and discontinuities ( 0 Dok. )