Bildnachweis
- Der Magistrat der Stadt Groß-Bieberau
- Florian Senger | www.floriansenger.de
- Jürgen Schwinn
- Fischer.H - Eigenes Werk, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=50694173
- NASA - http://spaceflight.nasa.gov/gallery/images/shuttle/sts-121/html/jsc2005e29790.html, Gemeinfrei, https://commons.wikimedia.org/w/index.php?curid=350445
- Photo by CDC on Unsplash