| extrasolarer Planet | exoplanet |
| extrasolarer Mond | exomoon |
| erdähnlicher Planet | terrestrial planet |
| extrapolieren | extrapolate |
| extrasolar | extra-solar extrasolar |
| äußere Planet | outer planet |
| Extrapolation | extrapolation |
| extravagant | flamboyant |
| Tal der Tränen | vale of tears |
| Zentralafrikaner | Central African |
| Warschauer Pakt | Warsaw Pact |
| superhabitabler Planet | superhabitable planet |
| innere Planet | inner planet |
| Einzelgänger-Planet | rogue planet |
| Exoplanet | exoplanet extrasolar planet |
| Extrasystole | extrasystole |
| Extranet | extranet |
| Extravaganz | extravagance |
| extrahieren | extract |
| extralegal | extralegal |