Yes, one planet in our solar system appears white.
Venus: A Pearly White Planet
While not truly white in the way we might think of the color, Venus is described as having a pearly white appearance. This is due to its extremely thick atmosphere, composed mainly of carbon dioxide and sulfuric acid clouds which reflect sunlight very efficiently. [Source: "The planets of the solar system are varied in their appearance. Mercury is slate gray while Venus is pearly white, Earth a vibrant blue, and Mars a dusky red." - Astronomy.com]
Other Planets and Their Colors
It's important to note that the other planets in our solar system have different colors due to their atmospheric compositions and surface features:
- Mercury: Slate gray
- Earth: Vibrant blue
- Mars: Dusky red
- Jupiter: Beige with red-brown belts
- Saturn: Mostly beige with red-brown belts
- Uranus: Opaque blue
- Neptune: Opaque blue
White Dwarfs: A Different Story
While not planets themselves, white dwarfs are stellar remnants that are often described as white or white-hot. Several studies have discussed planets orbiting white dwarfs, and the possibility of planets resembling Earth around these stellar remnants. [Source: "A new paper examines the issue of exoplanets around white dwarfs and asks why rocky white dwarf planets seem to be rare." - Universe Today; "This rocky planet around a white dwarf resembles Earth — 8 billion years from now." - Berkeley News] However, these white dwarfs are not planets themselves, but rather the remnants of stars.
