Sezon 27
Bölümler
1 Oil Spill 8 Oca 1990 2 Medicine 2000 15 Oca 1990 3 Food Irradiation: Would You Buy It? 22 Oca 1990 4 From Earth to Miranda 29 Oca 1990 5 Encounter With Neptune 5 Şub 1990 6 Guess What's Coming to Dinner? 12 Şub 1990 7 The First 14 Days 19 Şub 1990 8 The 10,000 Year Test 5 Mar 1990 9 Hurricane! 12 Mar 1990 10 The Britannic Greenhouse 19 Mar 1990 11 Cold Fusion 26 Mar 1990 12 The Quake of '89 - The Final Warning? 2 Nis 1990 13 The Sharpest Shot of the Universe 9 Nis 1990 14 The Company of Ants and Bees 23 Nis 1990 15 The Intelligent Island 30 Nis 1990 16 Legacy of a Volcano 14 May 1990 17 Do Cows Make You Mad? 21 May 1990 18 The Child Mothers 4 Haz 1990 19 Signs of Life 11 Haz 1990 20 AIDS: A Quest for a Cure 25 Haz 1990