Abandoned Project

Ares I

class

canceled NASA rocket for project Constellation.

Ares V

class

canceled rocket from NASA's Constellation program

Kliper

Vehicle

proposed partly reusable crewed spacecraft concept by RSC Energia

Hermes

class

proposed spaceplane by the European Space Agency

Windows Nashville

class

cancelled operating system based on Windows 95

Mikoyan-Gurevich MiG-105

VisualArtwork

proposed Russian spaceplane

Manned Orbiting Laboratory

Vehicle

cancelled United States Air Force space station

Windows Odyssey

CreativeWork

Cancelled operating system

Mir-2

Vehicle

cancelled Soviet space station project

Jupiter Icy Moons Orbiter

Thing

proposed NASA spacecraft designed to explore the icy moons of Jupiter

VLS-1

class

Brazilian Space Agency satellite launcher

Interplanetary Transport System

class

reusable space launch and spacecraft system proposed by SpaceX

Nova

class

series of proposed rocket designs

Tsyklon-4

class

cancelled Ukrainian expendable launch vehicle

Europa Orbiter

Thing

cancelled space probe

Ares IV

class

cancelled NASA rocket project

Tiangong-3

Vehicle

previously planned Chinese space station module

Jupiter Europa Orbiter

Thing

canceled orbiter mission concept to Europa

Jupiter Ganymede Orbiter

Thing

cancelled European space probe to the Jupiter system

Ares I-Y

class

cancelled test rocket in the NASA Constellation program

HL-20 Personnel Launch System

VisualArtwork

NASA cancelled spaceplane project

Crew Exploration Vehicle

Vehicle

proposed spacecraft for the Constellation program, became the Orion spacecraft

Fuji

class

Japanese proposed crewed spacecraft

Capricornio

class

cancelled Spanish launch vehicle

Eddington

Vehicle

cancelled ESA mission to search for extrasolar planets

Mercury-Jupiter

class

proposed space launch configuration

Innovative Interstellar Explorer

Vehicle

proposed spacecraft intended to study the interstellar medium

Jupiter Magnetospheric Orbiter

Thing

cancelled space probe proposed by the Japanese Aerospace Exploration Agency

Jupiter

class

proposed family of heav-lift launch vehicles

Big Falcon Rocket

class

reusable space launch and spacecraft system proposed by SpaceX

Falcon 9 Air

class

proposed air-launched space launch vehicle designed by SpaceX of the United States

Space Transportation System program

class

proposed post-Apollo system of reusable crewed space vehicles

Space Exploration Vehicle

Vehicle

prototyped design for pressurized rover/small spacecraft

Gravity and Extreme Magnetism Small Explorer

Vehicle

cancelled NASA mission

Luna 25A

Thing

cancelled lunar probe, planned for 1977

HiROS

class

cancelled German reconnaissance satellite system

Whipple

Vehicle

proposed space observatory in the NASA Discovery Program 2014

Hayabusa Mk2

Vehicle

proposed Japanese space mission

17K-AM

class

experimental Russian orbital vehicle

LK-1

Vehicle

projected Soviet crewed lunar flyby spacecraft

OSAM-1

Vehicle

NASA Spacecraft

R-56

class

never-built Soviet superheavy rocket

Ares V-Y

class

cancelled maiden flight of the Ares V launch vehicle

Baikal spaceship

Thing

spaceship inside the Russian Burian spacial program.

Mars Colonial Transporter

class

reusable space launch and spacecraft system proposed by SpaceX

Titan V

class

proposed and cancelled American launch vehicle

All-Union Institute of Experimental Medicine

Organization

Soviet construction megaproject abandoned during World War II

KH-10 Dorian

class

cancelled reconnaissance system on the Manned Orbiting Laboratory

Titan IIIM

class

cancelled American expendable launch vehicle

Jabiru-1

Vehicle

cancelled Australian communications satellite

Yamato

class

proposed Japanese reusable spacecraft

Triamese

class

1965 design for a space launch vehicle

R-56

class

family of Soviet rockets developed by the OKB-586 bureau

Space Launcher System

class

1960s-era design program of the US Air Force

Tupolev OOS

VisualArtwork

Soviet concept for an air-launched, single-stage-to-orbit spaceplane

Debian GNU/Plan9

CreativeWork

operating system

Deimos and Phobos Interior Explorer

Vehicle

ESA spaceflight mission concept to study the moons of Mars

Galactic Suite Spaceresort

Vehicle

previously planned private space station

Solar Cruiser

Vehicle

cancelled NASA solar sail and Sun observation spacecraft

P5A

Thing

cancelled amateur space probe to Mars