Black hole starship
A black hole starship is a theoretical idea for enabling interstellar travel by propelling a starship by creating an artificial black hole and using a parabolic reflector to reflect its Hawking radiat...
Interstellar ark
An interstellar ark or spaceark is a conceptual space vehicle that some have speculated could be used for interstellar travel. Interstellar arks may be the most economically feasible method of traveli...
Starwisp
Starwisp is a hypothetical unmanned interstellar probe design proposed by Robert L. Forward. It is propelled by a microwave sail, similar to a solar sail in concept, but powered by microwaves from a m...
Stellar engine
Stellar engines are a class of hypothetical megastructures which use a star's radiation to create usable energy. Some variants use this energy to produce thrust, and thus accelerate a star, and anythi...
Von Neumann probe
The idea of self-replicating spacecraft has been applied — in theory — to several distinct "tasks". The particular variant of this idea applied to the idea of space exploration is known as a von Neuma...
Sleeper ship
A sleeper ship is a hypothetical type of manned spaceship in which most or all of the crew spends the journey in some form of hibernation or suspended animation. There is currently no known technology...
Bussard ramjet
The Bussard ramjet is a theoretical method of spacecraft propulsion proposed in 1960 by the physicist Robert W. Bussard, popularized by Poul Anderson's novel Tau Zero, Larry Niven in his Known Space ...
Generation ship
A generation ship or generation starship is a hypothetical type of interstellar ark starship that travels across great distances between stars at a speed slower than the speed of light.Since such a sh...
Generation ship - Wikipedia
Project Valkyrie
The Valkyrie is a theoretical spacecraft designed by Charles Pellegrino and Jim Powell (a physicist at Brookhaven National Laboratory). The Valkyrie is theoretically able to accelerate to 92% the spee...
Astrochicken
Astrochicken is the name given to a thought experiment expounded by theoretical physicist Freeman Dyson. In his book Disturbing the Universe (1979), Dyson contemplated how humanity could build a small...
Sea Dragon (rocket)
The Sea Dragon was a 1962 design study for a fully reusable two-stage sea-launched rocket. The project was led by Robert Truax while working at Aerojet, one of a number of designs he created that were...
Sea Dragon (rocket) - Wikipedia
Starseed launcher
Starseed is a proposed method of launching interstellar nanoprobes at one-third light speed suggested by Forrest Bishop of the Institute of Atomic-Scale Engineering.The launcher uses a 1,000 kilometer...
British Rail flying saucer
The British Rail flying saucer, officially known simply as space vehicle, was a proposed spacecraft designed by Charles Osmond Frederick.
The flying saucer originally started as a proposal for a l...
Shkadov thruster
Stellar engines are a class of hypothetical megastructures which use a star's radiation to create usable energy. Some variants use this energy to produce thrust, and thus accelerate a star, and anythi...
Shkadov thruster - Wikipedia
Innovative Interstellar Explorer
Innovative Interstellar Explorer was a NASA "Vision Mission" study funded by NASA following a proposal under NRA-03-OSS-01 on 11 September 2003. This study focused on the elusive quest to reach a...
Innovative Interstellar Explorer - Wikipedia
James F. Woodward
James F. Woodward is a professor emeritus of history and an adjunct professor of physics at California State University, Fullerton. He is best known for a controversial physics hypothesis proposed in ...
Preliminary Design of an Experimental World-Circling Spaceship
The Preliminary Design of an Experimental World-Circling Spaceship was a 1946 proposal by Project RAND for a United States satellite program. Dr. Robert M. Salter, Jack Lipp, and one other person at R...
Preliminary Design of an Experimental World-Circling Spaceship - Wikipedia
NEXUS (rocket)
The NEXUS reusable rocket was a concept design created in the 1960s by a group at General Dynamics led by Krafft Arnold Ehricke. It was intended as the next leap beyond the Saturn V, carrying up to ei...
NEXUS (rocket) - Wikipedia
Project Longshot
Project Longshot was a conceptual design for an interstellar spacecraft, an unmanned probe, intended to fly to and enter orbit around Alpha Centauri B powered by nuclear pulse propulsion.
Develope...
Project Longshot - Wikipedia
Moonbus
The Moonbus is a fictitious transportation vehicle which appears in the film 2001: A Space Odyssey. The word “moonbus” isn't referred to explicitly in the film itself; rather, it's called a “rocket bu...
Bracewell probe
A Bracewell probe is a hypothetical concept for an autonomous interstellar space probe dispatched for the express purpose of communication with one or more alien civilizations. It was proposed by Rona...
Microspacecraft
Mars Microspacecraft Missions are proposed cheap launch missions costing less than $50 million that can be carried out by the Italian Space Agency to Mars to research Mars, ranging from the use of one...
Berserker (Saberhagen)
The Berserker series is a series of space opera science fiction short stories and novels by Fred Saberhagen, in which robotic self-replicating machines strive to destroy all life.These Berserkers, nam...
Berserker (Saberhagen) - Wikipedia
Parom
The Parom (ferry in Russian) is a space tug that has been proposed by RKK Energia. The purpose of this vehicle is to replace most of the Progress' active components. Progress spacecraft have flown re...
Self-replicating spacecraft
The idea of self-replicating spacecraft has been applied — in theory — to several distinct "tasks". The particular variant of this idea applied to the idea of space exploration is known as a von Neuma...
Health threat from cosmic rays
The health threat from cosmic rays is the danger posed by galactic cosmic rays and solar energetic particles to astronauts on interplanetary missions. Galactic cosmic rays (GCRs) consist of high energ...
Health threat from cosmic rays - Wikipedia
Enzmann starship
The Enzmann starship is a concept for a manned interstellar spacecraft proposed in 1964 by Dr. Robert Enzmann. A three million ton ball of frozen deuterium would fuel nuclear fusion rocket engines con...
Dyson sphere
A Dyson sphere is a hypothetical megastructure that completely encompasses a star and hence captures most or all of its power output. It was first described by Freeman Dyson. Dyson speculated that suc...
Dyson sphere - Wikipedia