Secret Space Projects

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Unbuilt and cancelled rocket and spacecraft projects. Not for current or historic produced designs.
overscan (PaulMM)
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overscan (PaulMM)
overscan (PaulMM)
overscan (PaulMM)
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Rockwell International Star-Raker
2
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60
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Dew
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Nancy Grace Roman Telescope
2
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Flyaway
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DART Mission
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Flyaway
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Grey Havoc
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Soviet Space Elevator (1970)
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12
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klem
klem
hesham
Dream Chaser for CEV requirement
3 4 5
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165
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Grey Havoc
Grey Havoc
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Axiom Space
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10
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TomcatViP
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Triton
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Nova launch vehicle (post-Saturn)
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14
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Jcking
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XP67_Moonbat
BETA & BETA II Spaceplane?
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26
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publiusr
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Grey Havoc
Russian National Reusable Space Rocket program
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38
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sferrin
sferrin
Michel Van
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SKYRORA - UK return to Space - This time it's Private
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29
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FighterJock
FighterJock
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British Space Thread
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19
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Flyaway
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bobbymike
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DARPA Blackjack
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18
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jsport
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A
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Rods from God / "Project Thor"
5 6 7
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251
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Forest Green
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FutureSpaceTourist
VTVL Space Tourism RLVs
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25
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publiusr
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Michel Van
Space Suit Prototypes (like Grumman Moon Suit, Republic etc)
4 5 6
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204
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Orionblamblam
Orionblamblam
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SBIRS
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6
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Flyaway
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KH-11 KENNEN
2
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60
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Flyaway
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Spektr-RG X-Ray observatory
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31
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Flyaway
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sferrin
Lockheed Martin Mars Base Camp Concept
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38
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kitnut617
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robunos
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US 80s TNMTS/AMLS studies aka Shuttle II
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35
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overscan (PaulMM)
overscan (PaulMM)
Triton
Space Sensor Layer
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5
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jsport
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Antonio
Nuclear Powered Spacecraft
2
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72
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jsport
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Russian crackdown on the dissemination of space information
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8
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358
tequilashooter
tequilashooter
XP67_Moonbat
Lockheed BALLOS & the "Boeing HL-10"
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12
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6K
Orionblamblam
Orionblamblam
Triton
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Apollo LM-derived projects
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33
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11K
RanulfC
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Stratolaunch
2 3
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109
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11K
Flyaway
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Grey Havoc
International Lunar Research Station (Sino-Russian project)
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15
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tequilashooter
tequilashooter
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US Space Shuttle Projects
10 11 12
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453
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Byeman
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Triton
Saturn V-4X(U) what was it for?
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8
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publiusr
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Triton
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Large space structure experiments for Apollo Applications Program (AAP)
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12
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publiusr
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Triton
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Apollo Orbiting Primate Spacecraft (AAP)
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16
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publiusr
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Triton
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Lockheed Emergency Earth Orbital Escape Device (EEOED) 1969
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13
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publiusr
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British Spaceflight
2
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44
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7K
Grey Havoc
Grey Havoc
Triton
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AAP Manned Single-Launch Venus Fly-by Mission (1967)
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3
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4K
Archibald
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Triton
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Apollo CSM-derived projects
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19
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10K
Archibald
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Orionblamblam
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Reusable, winged versions of the Saturn V first stage
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27
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16K
publiusr
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Michel Van
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The (cancelled) second production run of Saturn Vs
2 3 4
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133
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NMaude
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Triton
LM-B/Space Tug
2
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53
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7K
RanulfC
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Commercial Space Station
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6
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Grey Havoc
Grey Havoc
Michel Van
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Douglas ROMBUS
2 3
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110
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Byeman
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Mars Reconnaissance Orbiter
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13
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Justo Miranda
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Question about UK space program.
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21
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Grey Havoc
Grey Havoc
flateric
Lockheed Martin X-33 & Venture Star
2
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43
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19K
Archibald
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SOC
Spaceplane Technology and Research (STAR)
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7
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8K
RanulfC
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Johnbr
SpaceX Falcon Heavy
5 6 7
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268
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RanulfC
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flateric
National AeroSpace Plane - NASP - X-30
4 5 6
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202
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RanulfC
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New information Vought's project MALLAR and Apollo missions
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13
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ConradLau
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MOL
8 9 10
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382
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quellish
quellish
Grey Havoc
Russian next generation space station?
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34
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11K
Grey Havoc
Grey Havoc
Orionblamblam
Zenith Star
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11
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6K
jeffb
jeffb
hesham
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Janus Manned Orbital Spacecraft with Stage Re-Entry
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13
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publiusr
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magnus_z
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Viking lander with ELMS (Viking C, Viking 3, Viking III)
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14
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6K
blackstar
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A
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less-known Titan variants
2 3 4
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133
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Michel Van
Michel Van
Meteorit
Ajax (Ayaks) hypersonic vehicles with MHD propulsion
2
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46
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43K
antigravite
A
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The Black Arrow & Britain’s Rocket Program
2
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68
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4K
PMN1
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A
Various Indian space projects
2
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66
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14K
Flyaway
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Triton
Soviet N1 rocket
2
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77
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31K
sferrin
sferrin
Meteorit
Sänger II aerospaceplane project
2
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48
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30K
publiusr
P
flateric
Hermès Space Shuttle
2
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69
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34K
hesham
hesham
A
US Lifting Bodies Studies - START (ASSET/PRIME), FDL, X-24, etc.
10 11 12
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445
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193K
publiusr
P
hesham
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Douglas Astro delta-wing spacecraft
2
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41
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19K
publiusr
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hesham
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Lockheed-California Earth-to-space shuttle of 1964
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18
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9K
blackstar
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Project Able ( Apollo + Sun Mirror )
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20
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12K
Byeman
B
XP67_Moonbat
Japanese future space projects
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38
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19K
TomcatViP
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O
SPS (Solar Power Satellite) Program of the 70's/80's
2
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59
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18K
publiusr
P
Skybolt
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By solids to the Moon: all-solid JPL Nova proposal
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35
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20K
Mike_A
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magnus_z
Manned spacecraft (Russia 2018)
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2
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1K
tequilashooter
tequilashooter
flateric
USAF/NASA RLV programs from the past - AMSCI, Science Dawn, Have Region, etc
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35
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25K
flateric
flateric
F
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Current proposed missions to the planet Venus
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16
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2K
tequilashooter
tequilashooter
Michel Van
ARCA Haas 2CA rocket (SSTO with aerospike engine)
2
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53
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16K
Michel Van
Michel Van
FutureSpaceTourist
Spirit of Liberty/Altaris space tourism RLVs
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25
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8K
publiusr
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Graham1973
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Hughes/Sandia - Pioneer Mars Orbiter (1974)
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22
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8K
Archibald
A
Grey Havoc
ESA 'Lunar Village' proposal
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7
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3K
Rhinocrates
Rhinocrates
M
Sänger antipodal bomber
2
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67
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30K
numbers station
numbers station
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Dynasoar
7 8 9
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326
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143K
numbers station
numbers station
Michel Van
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Ariane ULTIMATE
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10
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957
TomcatViP
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U
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Doomsday weapons and weapons to end all wars
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–
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–
N/A
hesham
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NASA Mars Unmanned Aircraft
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3
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2K
Grey Havoc
Grey Havoc
F
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Upgrading Russia’s fleet of optical reconnaissance satellites
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4
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1K
tequilashooter
tequilashooter
XP67_Moonbat
Iranian Space Launches
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29
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11K
Flyaway
F
A
India Future Manned Space projects
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15
Views
6K
cattalonX
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FutureSpaceTourist
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Space Shuttle passenger module concepts
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21
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7K
blackstar
B
B
SLOMAR
2
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54
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24K
iverson
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Triton
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Douglas Spacecraft Projects and Proposals 1961
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2
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2K
hesham
hesham
Triton
Philco Aeronutronic Mars Excursion Module (MEM) 1964
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15
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7K
hesham
hesham
Graugrun
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Various South African Space projects,concepts and associated equipment
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24
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7K
Graugrun
Graugrun
flateric
Rockwell International MRCC (Multi Role Common Core) TAV
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24
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19K
Archibald
A
flateric
Latest Angara family iterations at MAKS 2007
Replies
16
Views
7K
Grey Havoc
Grey Havoc
bobbymike
New Russian Super Heavy Lift Rocket?
Replies
7
Views
2K
Saber
S
bearnard97
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3D printing technology for some space stuff
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0
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191
bearnard97
bearnard97
flateric
Khrunichev's concept of manned space exploration
Replies
13
Views
7K
flateric
flateric
XP67_Moonbat
Boeing AMLLV (Advanced Multipurpose Large Launch Vehicle)
Replies
17
Views
10K
publiusr
P
B
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British Manned Spacecraft
2 3
Replies
88
Views
38K
Grey Havoc
Grey Havoc
flateric
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Recoverable Rocket Boosters: A Future That Never Was by Tony R.Landis
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15
Views
1K
uk 75
uk 75
Grey Havoc
Russian-American Observation Satellite (RAMOS)
Replies
0
Views
221
Grey Havoc
Grey Havoc
P
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MBB semi reusable Ariane - 1981
Replies
3
Views
466
Michel Van
Michel Van
A
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Pulsed NTR (not Orion, but TRIGA + NERVA "hybrid")
Replies
2
Views
1K
Archibald
A
flateric
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BAe HOTOL
2 3 4
Replies
122
Views
70K
hesham
hesham
P
To the Moon by Gemini?
2
Replies
57
Views
30K
tea monster
tea monster
XP67_Moonbat
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Salyut-Skylab Space Station
Replies
4
Views
4K
Grey Havoc
Grey Havoc
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