Copyright policy

In principle, you may download, print or otherwise use the contents of this site for your personal use on your computer for yourself or your personal use. Furthermore, you may not reproduce or commercially exploit the contents. Any use of this website or parts thereof in class or for the preparation and follow-up of lessons in school or university is explicitly encouraged. If you wish to use content for a textbook publisher’s work or comparable publications, this must be agreed separately in advance with the copyright holders.

What you should bear in mind if you wish to use Einstein Online material outside this website

Images und animations

The copyright and right of use for pictures and animations on Einstein Online, where the author or source is explicitly described in a footer, lies with the organizations and/or persons named there. If you would like to use one of these animations or pictures, please contact these organisations/persons directly.

The copyright and right of use for all pictures and animations on Einstein Online without a footer with explicit reference lies with the Albert Einstein Institute, Markus Pössel and Daniela Leitner. If you would like to use one of these images or animations for your own purposes, please contact us (see Einstein Online Contact Information).

Texts

The copyright and right of use for all texts on Einstein Online lies with the Albert Einstein Institute and the individual authors. The copyright and right of use for all texts without explicitly named author lies with the Albert Einstein Institute and Markus Pössel. We only permit the reprinting or online use of Einstein online texts in individual cases; if you are interested, please contact us (see Einstein online contact information).

Special regulations

The following special legal provisions apply to the illustration from the Science Magazine in the text “The History of Gravitational Lenses”:

“Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or in part, without prior written permission from the publisher.”