This following statement is, at some point in time, false: The Earth sky is yellow.

"My opponent's argument hinges on the fact that sunlight is everywhere on Earth, as these are where the particles of color come from." "Particles of color? Lol, I'll leave it be." Silence! Lol, I agree, that does seem silly. Oh well, its irrelevant. "1)Has my opponent completely forgotten that our sun is not the only star above the sky? 2)At all points in the sky there is always light coming in from all directions due to the massive amount of stars in the universe." 1)That'd be pretty hard to do, since it is night-time where I live. 2)It takes years for the closest star to us, excluding our sun, to get to us. Four years, to be precise. This star is to the left of the Sun. Considering there will come a time in a 4 year period, or already has, when the arctic circle is turned opposite to that star, and will intersect with the winter solstice, there will be no light coming from our sun nor that one. I don't want to get too deep into this, but that's the closest star. All those other ones take thousands to millions of years to reach us. Now, that time span is easy to work with. Malleable. Also, please take into fact that all those stars are probably obscured by different objects. This means that even if their light hits the Earth (very unlikely) the chances of it hitting the exact point on Earth where the winter solstice is, at the arctic circle, in the thousand year gap... yeah. The odds are very slim. I'm sure we can have a full winter for the arctic circle where there is no light even for one minute. "Then I may even go further to ask; Does a yellow object actually change color once placed in a dark room? Of course not, that's ridiculous. No, An object's color lies in it's structure of particles so that light would reflect in a certain way if introduced. Darkness does not change it's nature." Irrelevant? Besides, you defeat your own argument. Darkness is absence of light. Therefore, the light would not be reflected to show color since its not actually there. "Does color cease to exist if everyone goes blind? Definition of color. 1. That aspect of things that is caused by differing qualities of the light reflected or emitted by them, definable in terms of the observer or of the light, as: a. The appearance of objects or light sources described in terms of the individual's perception of them, involving hue, lightness, and saturation for objects and hue, brightness, and saturation for light sources. Only our perception of it. Based on this definition, then, it has no color, since we are all blind. "A yellow object remains yellow in a dark room. I agree that is extremely debatable. But it actually doesn't even matter. Because light always hits the Earth anyway." This last is irrelevant. He even admits it. My turn! As I stated, there is no sunlight in the winter solstice near the arctic circle/North Pole. I would like to reaffirm that. As I rebutted, there is a chance that there will be no light whatsoever from any star. As my source stated, there is full/total darkness for a period of about six months.[1] Darkness: 1. Absence of light. http://www.thefreedictionary.com... Another of my sources states this, and I quote,"During the north polar winter, some 42 Earth years later, the south polar axis points at the Sun and the north polar region is in total darkness." Rephrase it, and..." During the north polar winter, some 42 Earth years later, the south polar axis points at the Sun and the north polar region is in total absence of light."[2] Total absence of light. [1]http://www.arctic.noaa.gov... [2]http://www.lpi.usra.edu...