Sezon 23
Bölümler
1 Venus Explored 10 Oca 1979 2 The Man who Mapped the Nebulae 5 Şub 1979 3 Is Life on Earth Unique? 8 Mar 1979 4 The Space Between the Stars 4 Nis 1979 5 Voyager to Jupiter 2 May 1979 6 Looking at the Weather from Space 30 May 1979 7 X-Rays from Space 27 Haz 1979 8 Voyager 2 Reaches Jupiter 24 Tem 1979 9 The Zodiac 21 Ağu 1979 10 Pioneer to Saturn 19 Eyl 1979 11 Observing the Sun 18 Eki 1979 12 The Message of Starlight 22 Kas 1979 13 UFOs - fact or fantasy? 11 Ara 1979