Lights from above and back
We perceive the light traveling from the Orion Nebula toward us. Does anybody see our lights traveling back?
Light reflections from lake Zurich
Zurich city center by Limmat river
An astrobalcony superimposition of 29 pictures, each 75 second-long, shot from my city balcony aimed at Orion Nebula. ISO 2000, Nikon D800, Skyguider-Pro-assisted.