Marc Millis

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Contents 5
Marc Millis
Illustration of Earth, the Moon and space
Illustration: Earth, the Moon and space. An artist's impression drawn for this site, not a photograph of the event.
TypePerson
On the Timeline1 event, 1997

Marc G. Millis is an American propulsion engineer who managed NASA's Breakthrough Propulsion Physics project from 1996 to 2002, a small program to study speculative ideas such as "space drives" and faster-than-light travel. He later co-founded the Tau Zero Foundation.[1][2]

NASA

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Illustration: an open book about flying saucers. An artist's impression drawn for this site, not a photograph of the event.

Millis worked as an engineer at NASA. In 1997 he set out the "challenge to create the space drive", and from 1996 he led the Breakthrough Propulsion Physics project, which spent about $1.2 million over six years funding small studies of propulsion ideas that would need new physics. He summarised its findings on 14 topics, judging six non-viable, four worth further research and four unresolved.[1][3]

After the project

Illustration of official papers and files
Illustration: official papers and files. An artist's impression drawn for this site, not a photograph of the event.

When NASA cancelled the project in 2002, Millis and others, including writer Paul Gilster, founded the Tau Zero Foundation to support research on interstellar flight. NASA supported him in documenting the project's results, published by the American Institute of Aeronautics and Astronautics in 2009 as Frontiers of Propulsion Science.[1]

Views

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Illustration: an observer watching the sky. An artist's impression drawn for this site, not a photograph of the event.

In his papers Millis argued for an "incremental and affordable" approach to breakthrough propulsion, testing speculative claims through small, focused experiments.[1][2][3]

On the UAP Timeline

Illustration of Earth, the Moon and space
Illustration: Earth, the Moon and space. An artist's impression drawn for this site, not a photograph of the event.

References

This page was last edited on 29 October 2026. Articles are written in our own words from the sources listed under References; disputed claims are attributed to the people who made them.

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