“Half the harm that is done in this world is due to people who want to feel important. They don’t mean to do harm—but the harm does not interest them. Or they do not see it, or they justify it because they are absorbed in the endless struggle to think well of themselves.”

~ T.S. Eliot


By visiting these pages, you are consenting to our “Terms and Conditions of Use“…

… So you better keep reading to make sure you know what they are.

 Even in idealistic endeavors like ours, we must conform to prudent legalities. This page spells out the bounds of what we offer to you, and in return, what you must do to ensure that you use our material in an equally honorable and legal manner.


We realize that you will copy and paste things from this website into that school report (that you waited until the last minute to start). There is a proper way to do this so that you do not commit plagiarism (which will cause you to fail that assignment and be hunted down by our ‘Men In Black.’ … Well, we don’t actually have a staff of Men In Black, although I am taking the idea under advisement).

 When used for ‘scholarly’ purposes (like a school report, and not for money), you can quote material from this site, provided that you state that the material is a quote, AND that you cite where you got it from. Here is how to cite these pages:

 Millis, Marc, G. (yyyy) “Home Page [or the name of whatever page you pulled the information from],” The public website of Tau Zero Foundation, Inc., Cleveland OH, USA.

(Accessed yyyy-mm-dd).

 NOTES: That first (yyyy) refers to the year of the information (which is listed at the bottom of each page), and where the yyyy-mm-dd refers to the actual year, month, and day that you pulled that information from the site (probably the night before your assignment was due). If the page actually mentions an author, then you would list that author’s at the beginning (last name first, followed by a comma and then their first name ) – as is shown with my name listed there (yes, I, Marc Millis, wrote practically all of the first drafts for this web site). If the page does not list an author, then just place the words “Tau Zero Foundation” where my name is now shown.

Better yet, if you started working on your report days before the deadline, you can get even more information from the references that we cite on our site. And then you can list those references and impress your teachers even more!


These terms apply to all materials on these Tau Zero web pages and all their subpages. (Including <> and <>)

 The Tau Zero website is operated by the Tau Zero Foundation, Inc. whose mailing address is Tau Zero Foundation, c/o Ohio Aerospace Institute, 22800 Cedar Point Road, Cleveland, OH 44142, USA. The Tau Zero Foundation is incorporated as a nonprofit 501(c)(3) corporation in Cleveland Ohio. These Terms and Conditions of Use are governed by and construed in accordance with the law of the United States. The language of these Terms and Conditions of Use is English.


The Tau Zero Foundation strives to post the most reliable, current, and impartial information regarding the goal of practical interstellar flight and the steps toward achieving this goal, but acknowledges that this site will occasionally contain errors, omissions, and debatable opinions. The contents of this website are provided on an “as is” and “as available” basis.

 To aid you in making your own informed decisions, we provide citations to deeper resources where possible, but we cannot guarantee that even these are fully correct. From there, it’s up to you to dig deeper and think for yourself. We also cannot guarantee that these web pages will be free from viruses, worms, Trojan horses or other destructive material.


The Tau Zero Foundation shall not be liable to you or any third party for any indirect, incidental, special or consequential damages, including, without limitation, loss of profits or other intangible losses, arising out of or in connection with your use or inability to use the Tau Zero website.


Any information that is collected via these Tau Zero pages is intended to be used for keeping track of our Tau Zero Foundation correspondence, memberships, donations, feedback, auditing purposes and for managing Foundation email subscriptions. There is no intent to collect and sell this information to third parties.


The Tau Zero website contains links to third party websites that are not under the operation or control of the Tau Zero Foundation. Such links are provided as a convenience only, and shall not be interpreted as an express or implied endorsement of such third party websites or any products or services offered thereon.


OUR IP: Unless specifically cited as being from an different source (such as NASA images), all material on the Tau Zero website (drawings, designs, illustrations, photographs, sound tracks, written text, logos, trademarks…) is either the exclusive property of the Tau Zero Foundation, or licensed exclusively to the Tau Zero Foundation. The “Tau Zero Foundation” trademark, the « starget » trademark image (logo) and its related simplified symbolic representation [designed by A. Szames], as well as all other Tau Zero Foundation related marks, symbols, logotypes and mottos, whether or not registered, displayed on the Tau Zero website, as well as the domain name “Tau Zero,” are and will remain the exclusive property of the Tau Zero Foundation or exclusively licensed for use to the Tau Zero Foundation.

IP FROM OTHERS: Regarding the information used here from sources other than Tau Zero Foundation, all those photos, graphics, screen captures, and quoted text are used here in accordance with the Fair Use Law (Title 17 U.S. Code Section 107) and remain the property of their copyright owners. For reference, Section 107 sets out four factors to be considered in determining whether or not a particular use is fair:

    * The purpose and character of the use, including whether such use is of commercial nature or is for nonprofit educational purposes

    * The nature of the copyrighted work

    * The amount and substantiality of the portion used in relation to the copyrighted work as a whole

    * The effect of the use upon the potential market for, or value of, the copyrighted work

The distinction between fair use and infringement may be unclear and not easily defined. There is no specific number of words, lines, or notes that may safely be taken without permission. Acknowledging the source of the copyrighted material does not substitute for obtaining permission.


You agree to abide by all copyright laws regarding the use of the material on these Tau Zero pages, both for the Intellectual Property owned by Tau Zero and the Intellectual Property owned by others that is posted on the Tau Zero site.

You may not reproduce by any means or process (except as expressly provided herein), totally or in part, distribute, publish, transmit, create derivative works based on, modify or sell any such material contained on the Tau Zero website. You may not remove any copyright, trademark or other proprietary notice contained on the Tau Zero website or any content contained therein. Any reproduction, distribution, transmission, modification or use of these trademarks for any purpose without prior, express agreement of the Tau Zero Foundation is prohibited.

You may make a single copy of web pages published on the Tau Zero website for your own private, personal, scholarly, and non-commercial use, provided that any copy of such materials shall retain all copyright and other protective notices contained therein, and that it is properly cited as coming from the Tau Zero website. You may not represent any of the materials coming from this site as your own work.

Also, you agree that any information that you provide to the Tau Zero Foundation is accurate, true, and free of fraudulent intent. If you provide a link for use on the Tau Zero website, use of this link on the Tau Zero website shall not be interpreted as an express or implied endorsement of your activities.


The Tau Zero Foundation may update these Terms and Conditions of Use and the Privacy Policy at anytime. By continuing to use the Tau Zero website, following any such change, you agree to continue to comply with and are bound by the Terms and Conditions of Use and consent to the Privacy Policy, each as modified.


Now, that wasn’t too painful, was it?

Content Contributors

  • Marc Millis
  • Frank Nagorney

The Tau Zero Foundation is a 501(c)3 non-profit organization dedicated to pioneering advancements toward interstellar flight.