>

Watch Astro Boy - Season 1 Episode 20 Online!:

Astronauts report seeing fireflies in space, but they are really gaseous beings led by the evil Toxor.

Writing:
  • Osamu Tezuka

Stars:
Release Date: 1963-01-01
Seasons: 1
TMDb: 7.6/10
  • Country: JP
  • Language: 日本語
  • Runtime: 30

Other episodes for this season

The Birth of Astro Boy
Episode 1 - The Birth of Astro Boy
Colosso
Episode 2 - Colosso
Expedition to Mars
Episode 3 - Expedition to Mars
One Million Mammoth Snails
Episode 4 - One Million Mammoth Snail...
The Sphinx
Episode 5 - The Sphinx
Zero, the Invisible Robot
Episode 6 - Zero, the Invisible Robot
Captain Atom
Episode 7 - Captain Atom
The Spirit Machine
Episode 8 - The Spirit Machine
The Deep Freeze
Episode 9 - The Deep Freeze
Strange Voyage
Episode 10 - Strange Voyage
Time Machine
Episode 11 - Time Machine
Cross Island
Episode 12 - Cross Island
The Eyes of Christ
Episode 13 - The Eyes of Christ
The Artificial Sun
Episode 14 - The Artificial Sun
Grass Boy
Episode 15 - Grass Boy
Silver Comet
Episode 16 - Silver Comet
Hullabaloo Land
Episode 17 - Hullabaloo Land
Gangor the Monster
Episode 18 - Gangor the Monster
The Cosmic Giant
Episode 19 - The Cosmic Giant
Toxor, the Mist Man
Episode 20 - Toxor, the Mist Man
Satellite R-45
Episode 21 - Satellite R-45
Sea Serpent Isle
Episode 22 - Sea Serpent Isle
The Deadly Flies
Episode 23 - The Deadly Flies
Kingdom of the Sea
Episode 24 - Kingdom of the Sea
The Deep-Underground Tank
Episode 25 - The Deep-Underground Tank
Don Tay's Infernal Machine
Episode 26 - Don Tay's Infernal Machin...
Pearl People
Episode 27 - Pearl People
The Wacky Machine
Episode 28 - The Wacky Machine
Memory Day
Episode 29 - Memory Day
Secret Agent 3-Z
Episode 30 - Secret Agent 3-Z
Mysterious Cosmic Rays
Episode 31 - Mysterious Cosmic Rays
Hot Dog Corps
Episode 32 - Hot Dog Corps
The Three Magicians
Episode 33 - The Three Magicians
Beast From 20,000 Fathoms
Episode 34 - Beast From 20,000 Fathoms
Planet X
Episode 35 - Planet X
The Elixir of Life
Episode 36 - The Elixir of Life
The Strange Birthday Present
Episode 37 - The Strange Birthday Pres...
The Disturbed Small Planet
Episode 38 - The Disturbed Small Plane...
The Mysterious Cat
Episode 39 - The Mysterious Cat
The Abominable Snowman
Episode 40 - The Abominable Snowman
Deadline to Danger
Episode 41 - Deadline to Danger
The Yellow Horse
Episode 42 - The Yellow Horse
Ditto
Episode 43 - Ditto
Cleopatra's Heart
Episode 44 - Cleopatra's Heart
Return of Cleopatra
Episode 45 - Return of Cleopatra
The Phantom Space Ship
Episode 46 - The Phantom Space Ship
The Gigantic Space Crab
Episode 47 - The Gigantic Space Crab
The Great Space Horse
Episode 48 - The Great Space Horse
3D Tee Vee
Episode 49 - 3D Tee Vee
Westward, Ha!
Episode 50 - Westward, Ha!
Jimbo the Great
Episode 51 - Jimbo the Great
Snow Lion
Episode 52 - Snow Lion
Goodbye 1963
Episode 53 - Goodbye 1963
Duel on the Alps
Episode 54 - Duel on the Alps
Rejuvenating Gas
Episode 55 - Rejuvenating Gas
The Moon Monsters
Episode 56 - The Moon Monsters
Astro Boy goes to School
Episode 57 - Astro Boy goes to School
The Island of Mystery
Episode 58 - The Island of Mystery
The Super Duper Robot
Episode 59 - The Super Duper Robot
Dogma Palace
Episode 60 - Dogma Palace
Space Parasites
Episode 61 - Space Parasites
The Haunted Ship
Episode 62 - The Haunted Ship
The Man-Made Iceberg
Episode 63 - The Man-Made Iceberg
Vampire Vale
Episode 64 - Vampire Vale
The Terrible Tidal Wave
Episode 65 - The Terrible Tidal Wave
Vikings
Episode 66 - Vikings
The Devil Doll
Episode 67 - The Devil Doll
Dinosaur Dilemma
Episode 68 - Dinosaur Dilemma
The Clock Tower Mystery
Episode 69 - The Clock Tower Mystery
The Flower Monster
Episode 70 - The Flower Monster
Attack From Space
Episode 71 - Attack From Space
Shipwreck in Space
Episode 72 - Shipwreck in Space
Big Titan
Episode 73 - Big Titan
Mission to the Middle of the World
Episode 74 - Mission to the Middle of...
Inca Gold Fever
Episode 75 - Inca Gold Fever
The Monster Machine
Episode 76 - The Monster Machine
The Hooligan Whodunit
Episode 77 - The Hooligan Whodunit
Funnel to The Future
Episode 78 - Funnel to The Future
Super Brain
Episode 79 - Super Brain
Mighty Minute
Episode 80 - Mighty Minute
Dream Machine
Episode 81 - Dream Machine
The Robot Olympics
Episode 82 - The Robot Olympics
Dunder, Bird of Doom
Episode 83 - Dunder, Bird of Doom
Dolphins in Distress
Episode 84 - Dolphins in Distress
The Mad Beltway
Episode 85 - The Mad Beltway
The Terrible Time Gun
Episode 86 - The Terrible Time Gun
Space Princess
Episode 87 - Space Princess
Mighty Microbe Army
Episode 88 - Mighty Microbe Army
Horrible King Horrid
Episode 89 - Horrible King Horrid
Mystery of the Amless Dam
Episode 90 - Mystery of the Amless Dam
Galeom From Galaxy G
Episode 91 - Galeom From Galaxy G
The Three Robotiers
Episode 92 - The Three Robotiers
Brother Jetto
Episode 93 - Brother Jetto
Angel of the Alps
Episode 94 - Angel of the Alps
Magic Punch Card
Episode 95 - Magic Punch Card
The Great Rocket Robbery
Episode 96 - The Great Rocket Robbery
Contest in Space
Episode 97 - Contest in Space
Gift of Zeo
Episode 98 - Gift of Zeo
A Deep Deep Secret
Episode 99 - A Deep Deep Secret
The Wonderful Christmas Present
Episode 100 - The Wonderful Christmas P...
Uncharted World
Episode 101 - Uncharted World
Jungle Mystery
Episode 102 - Jungle Mystery
The Terrible Spaceman
Episode 103 - The Terrible Spaceman
The Devil’s Balloon
Episode 104 - The Devil’s Balloon
General Astro
Episode 105 - General Astro
The Mighty Mite From Ursa Minor
Episode 106 - The Mighty Mite From Ursa...
Mystery of the Metal Men
Episode 107 - Mystery of the Metal Men
Super Human Beings
Episode 108 - Super Human Beings
Phoenix Bird
Episode 109 - Phoenix Bird
Menace from Mercury
Episode 110 - Menace from Mercury
Robot Polymer
Episode 111 - Robot Polymer
Samson’s Hair
Episode 112 - Samson’s Hair
Dangerous Mission
Episode 113 - Dangerous Mission
Metro Monster
Episode 114 - Metro Monster
The Big Runaway Safe
Episode 115 - The Big Runaway Safe
The Greatest Robot on Earth (part one)
Episode 116 - The Greatest Robot on Ear...
The Greatest Robot on Earth (part two)
Episode 117 - The Greatest Robot on Ear...
Robot Grabby
Episode 118 - Robot Grabby
Planet 13
Episode 119 - Planet 13
Time Hunter
Episode 120 - Time Hunter
Prisoners in Space
Episode 121 - Prisoners in Space
The Monster Mantler
Episode 122 - The Monster Mantler
Captain Dog
Episode 123 - Captain Dog
Double trouble
Episode 124 - Double trouble
Find the Bacteria
Episode 125 - Find the Bacteria
Roboids
Episode 126 - Roboids
The Experimental Robot
Episode 127 - The Experimental Robot
Treasures of the Inca Empire
Episode 128 - Treasures of the Inca Emp...
Atom vs. Atom
Episode 129 - Atom vs. Atom
The Storm on Mars
Episode 130 - The Storm on Mars
The Moon Champion
Episode 131 - The Moon Champion
Prince Louis
Episode 132 - Prince Louis
Revenge After Ten Years
Episode 133 - Revenge After Ten Years
Operation Escape
Episode 134 - Operation Escape
The Robot-Dog Backy
Episode 135 - The Robot-Dog Backy
Inspector Jaguar
Episode 136 - Inspector Jaguar
Little Cooley
Episode 137 - Little Cooley
1 Long Day
Episode 138 - 1 Long Day
Atom Stolen
Episode 139 - Atom Stolen
The King and Atom
Episode 140 - The King and Atom
The Locomotive March
Episode 141 - The Locomotive March
Minya’s Star
Episode 142 - Minya’s Star
Bird Street Story
Episode 143 - Bird Street Story
Lost Friendship
Episode 144 - Lost Friendship
Atom in the Deep Sea
Episode 145 - Atom in the Deep Sea
Report from the Future
Episode 146 - Report from the Future
Mid-air Screen
Episode 147 - Mid-air Screen
Robio and Robiet
Episode 148 - Robio and Robiet
The Can Capriccio
Episode 149 - The Can Capriccio
Miss Magnet
Episode 150 - Miss Magnet
Lonely Atom
Episode 151 - Lonely Atom
The Robot Bombs
Episode 152 - The Robot Bombs
The Red Merry-Go-Round
Episode 153 - The Red Merry-Go-Round
Blue Bird Story
Episode 154 - Blue Bird Story
The Crazed Boundary
Episode 155 - The Crazed Boundary
Robot Mayor
Episode 156 - Robot Mayor
Gypsy’s Star
Episode 157 - Gypsy’s Star
Funny Companion
Episode 158 - Funny Companion
Devil and Angel
Episode 159 - Devil and Angel
The Golden Flute
Episode 160 - The Golden Flute
Dream-Selling Aliens
Episode 161 - Dream-Selling Aliens
Operation Candy
Episode 162 - Operation Candy
Road to Another World
Episode 163 - Road to Another World
The Space Spider
Episode 164 - The Space Spider
A Great Fuss Over Babies
Episode 165 - A Great Fuss Over Babies
The Jewel-Eating Monster
Episode 166 - The Jewel-Eating Monster
Plenty of Balloons
Episode 167 - Plenty of Balloons
The Island That Jumped Up
Episode 168 - The Island That Jumped Up
Gift from the Future
Episode 169 - Gift from the Future
Two Princesses
Episode 170 - Two Princesses
Kutcher Forever
Episode 171 - Kutcher Forever
The Herald Brothers
Episode 172 - The Herald Brothers
Robotty
Episode 173 - Robotty
The Great Submarine Canal
Episode 174 - The Great Submarine Canal
Robot Wars (part one)
Episode 175 - Robot Wars (part one)
Robot Wars (part two)
Episode 176 - Robot Wars (part two)
The Gigantic Robot
Episode 177 - The Gigantic Robot
Chi-tan’s Nighttime Adventure
Episode 178 - Chi-tan’s Nighttime Adven...
Blue Horseman (part one)
Episode 179 - Blue Horseman (part one)
Blue Horseman (part two)
Episode 180 - Blue Horseman (part two)
Ghost Manufacturing Machine
Episode 181 - Ghost Manufacturing Machi...
Demented Cobalt
Episode 182 - Demented Cobalt
Japanese People from Space
Episode 183 - Japanese People from Spac...
Time War
Episode 184 - Time War
Star of Africa
Episode 185 - Star of Africa
Monsters Come out at Night
Episode 186 - Monsters Come out at Nigh...
Baily’s Legend
Episode 187 - Baily’s Legend
Tengu of Kurama
Episode 188 - Tengu of Kurama
Confusion at the Shooting Studio
Episode 189 - Confusion at the Shooting...
Miracle of Mesopotamia
Episode 190 - Miracle of Mesopotamia
Wandering Roppi
Episode 191 - Wandering Roppi
Medusa’s Mansion
Episode 192 - Medusa’s Mansion
The Greatest Adventure on Earth
Episode 193 - The Greatest Adventure on...