Titan Submarine: Exploring the Depths of Kraken Mare
Earlier this month, NASA published a video introducing its concept submarine designed to explore Kraken Mare, one of the liquefied methane seas on Titan, the remarkably strange moon circling Saturn. T...
Indian Space Shuttle Programme
The Indian Space Shuttle Programme was a conceptual idea to design an indigenous Reusable Space Vehicle.In the end of 1980s and beginning of 1990s India had plans to develop the small Space Shuttle na...
Pioneer H
Pioneer H is an unlaunched unmanned space mission that was part of the US Pioneer program for a planned 1974 launch. Had this mission and spacecraft been launched, it would have been designated Pione...
Pioneer H - Wikipedia
Rotary Rocket
Rotary Rocket Company of Mojave, California, was a rocketry company headquartered in a 45,000-square-foot (4,200 m) facility at Mojave Airport that developed the Roton concept in the late 1990s a...
Rotary Rocket - Wikipedia
Boeing X-20 Dyna-Soar
The Boeing X-20 Dyna-Soar ("Dynamic Soarer") was a United States Air Force (USAF) program to develop a spaceplane that could be used for a variety of military missions, including reconnaissance, bombi...
Boeing X-20 Dyna-Soar - Wikipedia
Mars Surveyor 2001 Lander
The NASA Mars Surveyor 2001 Lander was a planned Mars probe which was canceled in May 2000 in the wake of the failures of the Mars Climate Orbiter and Mars Polar Lander missions in late 1999. The Land...
Mars Surveyor 2001 Lander - Wikipedia
LEO (spacecraft)
LEO (Lunarer Erkundungsorbiter; English: Lunar Exploration Orbiter) was the name of a proposed German mission to the Moon, announced by the German Aerospace Center (DLR) Director Walter Doellinger on ...
Zarya (spacecraft)
The Zarya spacecraft was a secret Soviet project of the late 1980s aiming to design and build a large, manned, vertical takeoff, vertical landing (VTVL) reusable space capsule,a much larger replacemen...
North American DC-3
The DC-3 was a proposed space shuttle designed by Maxime Faget at the Manned Spacecraft Center (MSC) in Houston. The design was nominally developed by North American Aviation (NAA), although it was a ...
Tsiolkovsky mission
The Soviet space program was the rocketry and space exploration programs conducted by the former Union of Soviet Socialist Republics (the Soviet Union or USSR) from the 1930s until its dissolution in ...
Tsiolkovsky mission - Wikipedia
Jupiter Icy Moons Orbiter
The Jupiter Icy Moons Orbiter (JIMO) was a proposed NASA spacecraft designed to explore the icy moons of Jupiter. The main target was Europa, the suspected ocean of which is one of the places where si...
Jupiter Icy Moons Orbiter - Wikipedia
SERV
SERV, short for Single-stage Earth-orbital Reusable Vehicle, was a proposed space launch system designed by Chrysler's Space Division for the Space Shuttle project. SERV was so radically different fro...
SERV - Wikipedia
Fuji (spacecraft)
Fuji (ふじ) was a manned spacecraft of the space capsule kind, proposed by Japan's National Space Development Agency (NASDA) Advanced mission Research center in December 2001. The Fuji design was ultima...
Fuji (spacecraft) - Wikipedia
MAKS (spacecraft)
The MAKS (Multipurpose aerospace system) (Russian: МАКС (Многоцелевая авиационно-космическая система)) is a cancelled Soviet air-launched with orbiter Reusable launch system project that was proposed ...
MAKS (spacecraft) - Wikipedia
Columbus (spacecraft)
The Columbus Man-Tended Free Flyer (MTFF) was a European Space Agency (ESA) program to develop a space station that could be used for a variety of microgravity experiments while serving ESA's needs fo...
Hermes (spacecraft)
Hermes was a proposed spaceplane designed by the French Centre National d'Études Spatiales (CNES) in 1975, and later by the European Space Agency. It was superficially similar to the US X-20. France p...
Hermes (spacecraft) - Wikipedia
Marco Polo (spacecraft)
Marco Polo was a proposed space mission studied between 2007 and 2010. It was for a near Earth asteroid sample return, and was considered for the ESA Cosmic Vision programme. It was superseded by the ...
Magnum (rocket)
The Magnum was a large super-heavy-lift rocket designed by NASA's Marshall Space Flight Center during the mid-1990s. The Magnum, which never made it past the preliminary design phase, would have been ...
Magnum (rocket) - Wikipedia
Pluto Kuiper Express
The Pluto Kuiper Express mission was a space mission designed to flyby the Pluto–Charon system and at least one other large object in the Kuiper belt beyond Pluto's orbit. Originally designated the Pl...
Pluto Kuiper Express - Wikipedia
Advanced Gemini
Advanced Gemini is a number of proposals that would have extended the Gemini program by the addition of various missions, including manned low Earth orbit, circumlunar and lunar landing missions. Gemi...
Advanced Gemini - Wikipedia
Prospector (spacecraft)
Prospector was a proposed lunar probe that was intended to be flown in support of the Apollo lunar missions.Prospector arose as a result of President John F. Kennedy's desire to rehabilitate the tarni...
Prospector (spacecraft) - Wikipedia
Astro-G
Astro-G (also known as VSOP-2, and very rarely called VSOP-B) was a planned radio telescope satellite by JAXA. It was expected to be launched into elliptic orbit around Earth (apogee height 25,000...
Mir-2
Mir-2 was a space station project which began in February 1976. Some of the modules built for Mir-2 have been incorporated into the International Space Station (ISS). The project underwent many change...
Mir-2 - Wikipedia
Pluto Fast Flyby
The Pluto Fast Flyby was a space mission meant to perform a flyby of the dwarf planet Pluto. This spacecraft was meant to be launched by 2000 and reach Pluto by 2010, so it could examine Pluto's atmo...
Pluto Fast Flyby - Wikipedia
MoonRise
MoonRise is a mission to the Moon that focuses on the giant South Pole–Aitken basin on the far side of the Moon between the Moon's South Pole and Aitken Crater, 16° south of the Moon's equator. This b...
Mars Telecommunications Orbiter
The Mars Telecommunications Orbiter (MTO) was a cancelled Mars mission that was originally intended to launch in 2009 and would have established an Interplanetary Internet between Earth and Mars. The ...
Mars Telecommunications Orbiter - Wikipedia