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The subject of color perception in alien environments is a fascinating topic that has drawn attention from cognitive vision scientists and oceanographers alike. While our eyes are the instruments that detect light, it is our brain that interprets these signals into what we perceive as colors. The human brain's adaptability in various light conditions is a topic of ongoing research, especially in anticipation of potential interplanetary travel. In this article, we'll explore this complex topic in depth. The Brain's Natural Color Correction Mechanism When we wear tinted sunglasses or grow older, which results in the yellowing of our eye lenses, our brains automatically adjust to perceive colors accurately. According to Michael Webster, a cognitive vision scientist at the University of Nevada, Reno, the same mechanism would likely kick in when humans travel to different planets. This correction mechanism aims to neutralize predominant colors, making them appear more "gray" over time. Therefore, the average color of a new environment will eventually look gray as the brain adjusts to new lighting conditions. How Mars Might Look to Settlers According to Webster, settlers on Mars would likely experience a shift in their color perception over time. Although Mars is known as the "Red Planet," its reddish terrain would eventually look browner or grayer to human settlers. Simultaneously, the ocher Martian sky might appear bluer to them. While it would not be identical to Earth's sky, the shift would make the Martian sky look significantly less orange than how we perceive it now. Color Perception on Exoplanets The brain's ability to adjust isn't limited to our Solar System. Suppose you were to land on an exoplanet with a purple landscape and a gold sky. In that case, the brain would adjust differently, depending on the unique characteristics of that environment's color palette. The dominant color in the atmosphere and landscape would significantly influence how colors appear to explorers. Adjustments Beyond Hue Webster notes that the brain doesn't just adapt to color hue; it also adjusts for intensity. In an environment with a limited range of natural colors, the human brain becomes highly sensitive to slight changes in shade. Consequently, colors that may initially appear washed out will look increasingly vibrant over time. Technological Interventions: The "Sea-thru" Algorithm While the brain's natural adaptability is fascinating, technological solutions are also being developed to assist in color perception in different environments. Derya Akkaynak, an engineer and oceanographer at the University of Haifa, has co-developed an algorithm called "Sea-thru." This technology corrects the colors in underwater images, making them appear as if taken on land. By understanding an alien planet's atmosphere and ocean composition, a similar approach could be applied to create an algorithmic filter for spacesuit visors, allowing astronauts to perceive colors accurately. Real-World Implications: Insights from Deep-Sea Exploration Akkaynak's experiences in deep-sea environments offer some clues about how humans might adapt to alien landscapes. At depths beyond 100 feet, where all red light is filtered out, Akkaynak found that her perception of colors shifted, suggesting that the human brain is highly adaptable, even in the most extreme conditions. Conclusion The study of how the human brain adapts to color perception in alien environments is an intriguing field with direct implications for future interplanetary exploration. Whether through natural brain adjustments or technological interventions, understanding how we might perceive colors on other planets adds a new dimension to the scientific preparation for humanity's next giant leap. Also Read:

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Understanding How the Human Brain Adapts to Colors on Alien Planets