| C-ring | Saturn - Ring System |
| caldera | Mars - Olympus Mons |
| California | The Earth - California And Arizona (Imperial Valley) |
| Callisto | Jupiter - The Galilean Satellites |
| | Jupiter - "Family Portrait" Of Its Largest Satellites |
| | Jupiter's Satellite Callisto - Close Up |
| | Jupiter's Satellite Callisto - Surface View |
| | Jupiter's Satellite Callisto - Valhalla |
| | Jupiter's Satellite Callisto - Asgard |
| Caloris Basin | Mercury - Global View |
| Canada | The Earth - United States, Mexico And Central America |
| Canary Islands | The Earth - Canary Islands |
| | The Earth - Network Of Stratocumulus Clouds Sw Of The Canary Islands |
| Candor Chasma | Mars - Oblique Color Mosaic Of Candor Chasma |
| Canis Major | Voyager |
| carbon dioxid | Mars - Syrtis Major Hemisphere |
| Cassini | Saturn - Aurorae |
| | Saturn's Satellite Titan - Surface View |
| Cassini Division | Saturn - Ring System |
| | Saturn - An Infrared View |
| Central America | The Earth - United States, Mexico And Central America |
| Central Highlands | The Moon - Oblique View Of Theophilus Crater |
| Cerberus | Mars - Cerberus Hemisphere |
| Cerro del Pinacate | The Earth - Arizona And Mexico |
| Cetus | Mira - Hst Separates Stars In The Mira Binary System |
| Chad | The Earth - The Central Sahara Desert In Africa |
| Charon | Pluto - Map Of The Surface |
| | Pluto And Charon |
| Chryse Planitia | Mars - Sunset At The Viking 1 Lander Site |
| | Mars - Trenches Dug By The Viking 1 Lander In The "Sandy Flats" Location |
| Clementine | Earth (full) |
| | Earth (India, Saudi Arabia) |
| | Earth (Lake Victoria) |
| | The Earth And Moon By Clementine |
| | Earth (from Moon) |
| | The Moon - Color Image Of Vallis Schroteri |
| | The Moon - Mosaic Of The South Pole |
| | The Moon - The Earth Over The The Moon's North Pole |
| | The Moon - By Hubble Space Telescope |
| | The Moon - Sample Images By Clementine Spacecraft |
| Clementine spacecraft | Earth - As Seen By Clementine Spacecraft |
| | The Moon By Clementine (Star Tracker Mosaic) |
| clouds | Venus - Cloud Tops Viewed By Hubble |
| | Venus - Cloud Tops |
| | The Earth - Western Pacific And The Full Moon (View From Gemini 7 ) |
| | The Earth - United States, Mexico And Central America |
| | The Earth And Moon By Near |
| | Mars - Full Rotation |
| | Jupiter - Hubble Tracks Jupiter Storms |
| | Saturn - An Infrared View |
| | Neptune |
| | Neptune - Bright Cloud Streaks |
| | Neptune - The Great Dark Spot |
| | Giant "Twisters" And Star Wisps In The Lagoon Nebula |
| cluster of stars | Globular Clusters - Hst Peers Deep Into The Crowded Heart Of The Densest Known Star Cluster |
| clusters of hills | Jupiter's Satellite Europa - Surface View |
| Coimbra | The Coimbra Crew |
| Collins | The Moon - Apollo 11 Lunar Module After Separation |
| | The Moon - The Apollo 11 Lunar Module, The The Moon, And The Earth |
| | The Moon - Apollo 11 Command Module Over The The Moon After Separation |
| collision | Hst Reveals Stellar Fireworks Accompanying A Galaxy Collision |
| collision between two galaxies | Hst Reveals Stellar Fireworks Accompanying A Galaxy Collision |
| collision of two gases | Collision Of Gases Near A Dying Star |
| Colorado river | The Earth - Arizona And Mexico |
| Columbia | The Moon - Apollo 11 Lunar Module After Separation |
| | The Moon - The Apollo 11 Lunar Module, The The Moon, And The Earth |
| Comet | P/Halley (Giotto) |
| | Halley |
| | Halley |
| | Hale-Bopp |
| | Halebopp |
| | Hyakutake |
| | Kohoutek |
| | P/Halley |
| comet Hale-Bopp | Hale-Bopp |
| comet Kohoutek | Kohoutek |
| comet P/Halley | P/Halley (Giotto) |
| comet Shoemaker- Levy 9 | Jupiter's Satellite Callisto - Surface View |
| cometary knots | Collision Of Gases Near A Dying Star |
| | Cometary Knots Around A Dying Star |
| Command and Service Module | Apollo - Apollo Command And Service Module |
| Command Module | The Moon - Apollo 11 Command Module Over The The Moon After Separation |
| commander | The Moon - Astronaut Next To A Large Boulder |
| comparison | Asteroids |
| complex "tumbling" rotation | Asteroid Toutatis - One Of The Strangest Objects In The Solar System |
| constellation Aquarius | Collision Of Gases Near A Dying Star |
| | Cometary Knots Around A Dying Star |
| constellation Corona Australis | Neutron Star - Hst Sees A Neutron Star Alone In Space |
| constellation Corvus | Hst Reveals Stellar Fireworks Accompanying A Galaxy Collision |
| constellation Sagittarius | Giant "Twisters" And Star Wisps In The Lagoon Nebula |
| | Giant "Twisters" In The Lagoon Nebula |
| | Hale-Bopp |
| constellation Taurus | Dynamics Of Crab Nebula |
| constellation Triangulum | Giant Starbirth Region In A Neighboring Galaxy |
| constellation Virgo | Black Hole - Hst Confirms The Existence Of A Massive Black Hole At The Heart Of An Active Galaxy |
| cool molecular hydrogen gas | Star-Birth Clouds In Eagle Nebula M16 |
| cool red giant star | Mira - Hst Separates Stars In The Mira Binary System |
| Copernicus | The Moon - By Hubble Space Telescope |
| Copley | Mercury - Copley Crater |
| copyright | Copyright |
| Crab Nebula | Dynamics Of Crab Nebula |
| Crab Pulsar | Dynamics Of Crab Nebula |
| crater | Mercury - Brahms Crater |
| | Mercury - Degas Crater |
| | Mercury - Jumbled, Chaotic Terrain Antipodal To The Caloris Basin |
| | Venus - Three-Dimensional Views |
| | The Moon - Southwestern Mare Tranquilitatis |
| | The Moon - Oblique View Of Archimedes Crater |
| | The Moon - By Hubble Space Telescope |
| | Jupiter's Satellite Amalthea |
| | Jupiter's Satellite Europa - By Galileo Spacecraft |
| | Jupiter's Satellite Europa 3 |
| | Saturn's Satellite Mimas |
| | Neptune's Satellite Triton - Surface View |
| crater farm | Venus - 3-D Perspective View Of The"Crater Farm" |
| crater Osiris | Jupiter's Satellite Ganymede - View Of The Crater Osiris |
| crater Plaskett | The Moon - The Earth Over The The Moon's North Pole |
| crater Schrodinger | The Moon - Mosaic Of The South Pole |
| crater Tettit | Mars - Cerberus Hemisphere |
| craters | Mercury - Craters |
| | Mercury - Michelangelo Quadrangle |
| | Venus - Globes |
| | The Moon - Southeastern Mare Imbrium |
| | The Moon - Sinuous Rilles East Of The Aristarchus Plateau |
| | Mars' Satellite Deimos - Craters And Streaks |
| | Jupiter's Satellite Io - Close Up |
| | Jupiter's Satellite Callisto - Close Up |
| | Jupiter's Satellite Europa 13 |
| | Jupiter's Satellite Ganymede 1 |
| | Pluto - Surface View |
| | Asteroid Ida's Moon Dactyl - A Natural Satellite |
| Creative Commons license | Copyright |
| crew | The Coimbra Crew |
| cumulonimbi | The Earth - Yucatan Peninsula, Mexico |
| cumulus clouds | The Earth - Yucatan Peninsula, Mexico |
| Cunitz | Venus - Three-Dimensional Views |
| cyclonic eddy | The Earth - Cyclonic Eddy Near Ilha De Madeira In The Atlantic |
| Cydonia Mensae | Mars - Cydonia Mensae Region: "The Face" |
| cylindrical | Hubble Space Telescope - Description |
This is the Web Edition of "A Trip Into Space", a Coimbra-based electronic book on space science. Both the texts and the photos are by courtesy of National Aeronautics and Space Administration.
