A monochrome planet

I am asking if a planet with shades of gray only is scientifically possible in our universe. Basically everything on the surface of this planet would seem black and white to the human eye.

Here are some settings of the planet that may work for the case:

• The sun of the planet produces white light.
• The atmosphere of the planet doesn't scatter the light so the white light stays white when entering the atmosphere.
• The natural components of the planet consists of monochrome matter.

But there are cases where these wouldn't work so it would be nice if you also provided help with these questions:

• What if I put a material that absorbs all light but red? Wouldn't that object seem red?
• What if I brought a red light source.

posted about 8 years ago

Gökhan Kurt‭

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