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The Tau Zero Foundation Pioneering Interstellar Flight A coalition of researchers educators makers and visionaries who pioneer bridgebuilding methods develop solutions and inspire us all toward interstellar flight. The point at the apex of the logo symbolizes another habitable world across interstellar space the vertical series of dots underneath represent all the steps needed to eventually reach that world. The main focal section is our current situation with an arrow pointing the way within a coordinate system the glow of Enlightenment behind. The shining rings represent glowing progress.