This is an image of comet 67P/Churyumov–Gerasimenko with an approximate scaled image of the University of Phoenix Stadium. The image of comet 67P was captured by Rosetta’s navigation camera on Jan. 18, 2015.
The image of the University of Phoenix Stadium was captured via Google Earth, scaled, and placed on comet 67P for a visual comparison.
Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0
Google Earth
Images edited by @ObservingSpace