SpaceRef - Future Technology - Interstellar Travel

Bussard Interstellar Ramjet - Description of this interstellar propulsion concept by the Advanced Propulsion Technology Group at NASA JPL.

Candidate Interstellar Propulsion Systems - This page by the Advanced Propulsion Technology Group at NASA JPL describes various candidate propulsion systems under consideration for future interstellar missions.

Interstellar Mission Requirements - This page by the Advanced Propulsion Technology Group at NASA JPL addresses some of the general requirements for interstellar travel and briefly describes several candidate propulsion options for these missions.

Interstellar Precursor Missions - Interstellar missions will require enormous expenditures of energy in order to achieve speeds on the order of even a few tenths of the speed of light. However, it is still possible to consider more near-term interstellar precursor missions which travel far beyond the edge of the solar system. Introduction by the Advanced Propulsion Technology Group at NASA JPL.

Interstellar Probe Studies at NASA - This page at NASA's Office of Space Science gives a brief overview of NASA's current studies into interstellar exploration.

Interstellar Propulsion Technologies - This site gives an overview of interstellar propulsion research being undertaken at NASA MSFC and elsewhere

Interstellar Travel - Ideas Based On What We Know - This page takes a look at a number of proposed interstellar propulsion schemes - Project Orion, Project Daedalus, Bussard Interstellar Ramjet, and Robert Forward’s interstellar laser sails. NASA Glenn Research Center.

Introduction to Interstellar Missions - Overview of interstellar travel by the Advanced Propulsion Technology Group at NASA JPL.

Star Travelers - Craft powered by antimatter, fusion, and solar-driven sails could take us to interstellar space. This article form Popular Science deals with some of the advanced propulsion concepts being considered for interstellar travel.

Warp Drive, When? Ideas Based On What We Know - This page at NASA GRC has a brief description of some ideas that have been suggested over the years for interstellar travel, ideas based on the sciences that do exist today.