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I could tell it was an amazing experience! I really liked reading the science behind what we see when looking at the Northern Lights. It made more sense after reading your explanation. It was also very interesting to consider the limitations on both ends of the visual spectrum for human eyes.

I have often questioned what is real, visually, since we don't see things we look at but we see the light absorbed or reflected back. So, all we see is parts of light and not the actual things we think we are looking at. What else may dwell or lurk in the areas outside the spectrum of human sight? What makes something visually real?

Like... if there is no light to illuminate is there anything actually there in the abyss of darkness? Weird ponderings I have had since my youth. Your post brought back some of those thoughts!

Interesting question. It's true, we can see only light emitted or reflected by the things. We can't see any objects, but only light from objects. Our vision is only perception, vision has nothing to do with reality. Not only, also time is an human perception. Time doens't exist in physics. What you feel as 'time', is only an increasing of entropy (disorder), and if we live in an universe where nothing happens, time would hasn't sense. So we can't access to reality and truth. There is also truth in our dream (the dream we do during night), every feeling contains a bit of truth, but I can't say what truth really is. We live in the Platone cave. Another example: a star in the nighty sky appears to us as white, but stars has a specific colors due to its temperature: from red (lower temperature) to blue (higher temperature), but we see stars as white: there is an hidden and misterious beauty we can't access with senses.

Yes, black being the absorption of all color and white being the reflection of all color makes things interesting. I have always thought about how white and black aren't actually colors which is weird to consider.

I have had a love for astronomy and have always felt that the physics and chemistry behind stars is fascinating. Perception and our ability to comprehend reality and truth is a very deep subject to think on and discuss.

I could talk about all this stuff for days on end. Thanks for sharing similar interests and writing back as much as you did. I really enjoy these kinds of exchanges!

I love astronomy me too and I have a degree in physics, my second passion after photography.

It's interesting how much physics and light apply to photography! It's no wonder you are proficient in both!

You should study Gustavo Rol, one of the most extraordinary human being ever lived.