SPACE EXPLORATION ONGOING DISCOVERY AND EXPLORATION OF CELESTIAL STRUCTURES IN OUTER SPACE MEANS SPACE TECHNOLOGY THE STUDY SPACE ASTRONOMER TELESCOPE PHYSICAL EXPLORATION CONDUCTED ROBOTIC HUMAN SPACEFLIGHT OBSERVATION OBJECTS IN SPACE ASTRONOMY PREDATES RECORDED HISTORY DEVELOPMENT OF EFFICIENT ROCKET THE EARLY PHYSICAL SPACE COMMON SCIENTIFIC NATIONAL UNITING THE FUTURE SURVIVAL MILITARY STRATEGIC ADVANTAGES PROXY COMPETITION GEOPOLITICAL RIVALRIES THE COLD WAR DRIVEN SPACE RACE THE SOVIET UNION THE UNITED STATES THE LAUNCH THE FIRST HUMAN OBJECT ORBIT EARTH THE SOVIET SPUTNIK FIRST MOON LANDING THE AMERICAN APOLLO MISSION TAKEN LANDMARKS INITIAL PROGRAM LIVING BEING IN ORBIT YURI GAGARIN VOSTOK SPACEWALK ALEKSEI LEONOV AUTOMATIC LANDING CELESTIAL BODY SPACE STATION SALYUT THE FIRST YEARS OF FOCUS FROM ONE FLIGHTS RENEWABLE THE SPACE SHUTTLE PROGRAM COOPERATION THE INTERNATIONAL SUBSTANTIAL COMPLETION PLANS THE USA IN FLUX CONSTELLATION BUSH ADMINISTRATION RETURN TO THE MOON JUDGED EXPERT REVIEW PANEL REPORTING OBAMA ADMINISTRATION REVISION CAPABILITY MISSIONS BEYOND LOW EARTH ORBIT THE OPERATION LAUNCH VEHICLES HUMAN CREWS NASA PRIVATE SECTOR TECHNOLOGY PHOBOS MARS ORBIT THE PEOPLES REPUBLIC OF CHINA INITIATED MANNED THE EUROPEAN UNION INDIA PLANNED FUTURE SPACE MISSIONS THE MOON MARS PRIVATE SPACE TOURISM PRIVATE SPACE EXPLORATION OF THE MOON GOOGLE LUNAR X PRIZE HIGHEST PROJECTILES PRIOR ROCKETS THE SHELLS PARIS GUN TYPE GERMAN SIEGE GUN REACHED KILOMETERS ALTITUDE WORLD WAR ONE STEPS PUTTING SCIENTISTS WORLD WAR II TESTING THE LAUNCHING AFTER THE WAR CAPTURED CIVILIAN COSMIC RADIATION EXPERIMENT LAUNCHED IMAGES OF EARTH FIRST ANIMAL SAW FRUIT FLIES LIFTED THE HELP RADIATION ANIMAL EXPERIMENTS SUBORBITAL EXPERIMENTS SHORT TIME LIMITED ORBITAL LAUNCH SATELLITE MISSION THE SATELLITE BELIEVED ORBITED EARTH HEIGHT RADIO TRANSMITTERS BEEPS HEARD ANALYSIS THE RADIO SIGNALS USED TO GATHER INFORMATION ELECTRON DENSITY TEMPERATURE PRESSURE DATA ENCODED DURATION RESULTS METEOROID BURNED THE USSR LAIKA SUCCESS ESCALATION ATTEMPTED VANGUARD SATELLITE ORBIT TWO MONTHS ORBITED EXPLORER JUNO IN THE MEANTIME EAST CARRYING RUSSIAN COSMONAUT YURI GAGARIN SPACECRAFT HOUR FLIGHT AROUND THE WORLD DEMONSTRATION ADVANCED SOVIET SPACE PROGRAM NEW ERA PERSON MONTH ALAN SHEPARD SUBORBITAL FLIGHT ORBITAL FLIGHT JOHN GLENN VALENTINA TERESHKOVA FIRST WOMAN IN SPACE TIMES CHINA THE FLIGHT YANG LIWEI SHENZHOU ARTIFICIAL OBJECT REACH LUNA PERFORMED FIRST ARTIFICIAL SATELLITE LANDING APOLLO FLYBY MARINER VENUS APPROACH THE OTHER PLANETS FLOWN JUPITER PIONEER MERCURY SATURN URANUS VOYAGER NEPTUNE THE DWARF PLANET CERES PLUTO DAWN NEW HORIZONS SURFACE RETURN ANOTHER PLANET THE LANDING VENERA EARTH MARS MISSION SOFT LANDING RETURNING ALMOST LONGER MARS SURFACE OPERATION VIKING HOURS TRANSMISSION THE SURFACE EVER SOVIET PLANETARY SURFACE THE DREAM STEPPING THE OUTER REACHES EARTHS ATMOSPHERE JULES VERNE ROCKET TECHNOLOGY DEVELOPED THE GERMAN TRAVEL PROBLEMS THRUST MATERIAL FAILURE THE FINAL DAYS THE AMERICANS SOVIETS DRIVING FORCE WEAPONS RACE INTERCONTINENTAL BALLISTIC ICBM FAST NUCLEAR WEAPON DELIVERY THE FIRST MAN ITSELF BE IN KONSTANTIN TSIOLKOVSKY ROBERT GODDARD HERMANN OBERTH REINHOLD TILING LAID WERNHER VON BRAUN THE LEAD ENGINEER NAZI GERMANYS THE LAST DAYS THE WAR CARAVAN WORKERS SURRENDERED WORK DEVELOPMENT OPERATION PAPERCLIP ACQUIRED AMERICAN CITIZENSHIP THE TEAM FIRST AMERICAN VON BRAUN MARSHALL SPACE FLIGHT CENTER SATURN V MOON THE RACE SERGEI KOROLYOV WHOSE LEGACY SOYUZ IN SERVICE TO THIS DAY KOROLEV MASTERMIND BEHIND DEATH IDENTITY CLOSELY GUARDED STATE SECRET MOTHER KERIM KERIMOV THE FOUNDERS ARCHITECTS SERGEY KOROLYOV SCIENTIST PRECURSORS COSMOS VALENTIN GLUSHKO CHIEF ENGINE DESIGNER GLUSHKO THE ENGINES SOVIET ROCKETS ODDS VASILY MISHIN CHIEF DESIGNER SERGEI KOROLEV FAILURE COUNTRY MAN ON THE MOON ROBERT GILRUTH TASK FORCE DIRECTOR KENNEDY BOLD STEP REACHING ATTEMPT SUPERIORITY CHRISTOPHER FIRST FLIGHT MISSION CONTROL TECHNOLOGIES MAXIME FAGET THE MERCURY CAPSULE ROLE DESIGNING GEMINI APOLLO SPACECRAFT DESIGN SHUTTLE THE SUN PROBABLY PHYSICALLY AT ALL MAJOR ABOVE THE ATMOSPHERE PARTICULAR EARTHS MAGNETIC FIELD ACCESS SOLAR WIND INFRARED ULTRAVIOLET CANNOT EARTHS SURFACE SPACE WEATHER AFFECT POWER GENERATION TRANSMISSION SYSTEMS SATELLITES SPACE PROBES DEDICATED TO OBSERVING SOLAR OBSERVATION SOLAR PROBE PLUS THE ORBIT REMAINS INNER PLANETS AS OF MESSENGER THE ONLY CLOSE OBSERVATIONS INVESTIGATE THE OBSERVATIONS MISSION TO MERCURY SCHEDULED ARRIVE BEPICOLOMBO JOINT JAPAN THE EUROPEAN SPACE AGENCY COMPLEMENTARY HELP UNDERSTAND THE MYSTERIES DISCOVERED FLYBYS OTHER PLANETS THE SOLAR SYSTEM COST THE NET CHANGE VELOCITY HIGH EXPLORE ORBITS RATHER FIRST TARGET LANDER HOSTILE ENVIRONMENTS SENT PAST MULTIPLE GRAVITATIONAL ASSIST EN ROUTE CELESTIAL BODIES PROBE ENTER EXAMINE EIGHT DIRECT ORBITER ABLE TO MAP RADAR TOOL CELESTIAL OBJECT ORBITAL IMPOSSIBLE POINT THE EXISTENCE THE VAN ALLEN RADIATION BELT UNKNOWN DISCOVERY TRAPPED M