Sun: coronal mass ejections (CMEs) Magnetic fields 34 Sun: magnetic fields 30 Magnetic clouds 24 Sun: coronal mass ejection 24 Sun: heliosphere 23 Magnetic flux 22 Flux ropes 20 Coronal mass ejection 18 Interplanetary medium 18 Sun 18 Sun: corona 17 Interplanetary spacecraft 16 Magnetic flux ropes 16 Solar system 16 Solar wind 16 Aspect ratio 14 Rope 14 Solar-terrestrial relations 14 Astrophysics 12 Ciencias Astronómicas 12 Expansion rate 12 In-situ observations 12 Interplanetary coronal mass ejections 12 Magnetohydrodynamics 12 Planetary surface analysis 12 Sun: flares 12 Magnetoplasma 10 Minimum variance 10 Spacecraft 10