The colors for inner planets Mercury, Venus, Earth and Mars are gray, yellowish-white, predominantly blue with patches of other colors and red-orange, respectively; the outer planets Jupiter, Saturn, Uranus and Neptune have the colors orange with white bands, light yellow, light blue and pale blue, respectively. Mercury, which is the closest planet to the sun, has no atmosphere, and its surface appears gray. Mars color is red-orange because its surface contains rust-colored rocks.Know More
The yellowish-white appearance of Venus is due the sulfuric acid clouds in its atmosphere. The Earth is mainly blue in color due to its water sources. However, when seen from space, patches of the colors brown, white, green and yellow are visible. The while colors are due to the clouds, and some continents appear green.
Similarly, the different colors associated with the outer planets are associated with the types of atmospheres found on these planets. For example, Uranus and Neptune have a blue hue because of the methane clouds found in their atmospheres.Learn more in Planets
The lowest temperature on Venus is minus 175 degrees Celsius, found at an atmospheric layer 125 kilometers above the surface of the planet. The planet's average temperature, however, stands at 464 degrees Celsius, making it hotter than Mercury despite being farther away from the sun.Full Answer >
The planet Neptune has a sidereal rotation of approximately 16 hours. Unlike the solid surface found on the terrestrial planets of the inner solar system, Neptune is a gas giant composed of regions that rotate at different speeds.Full Answer >
There is no evidence of life existing on Venus, and current scientific theories suggest that it is very unlikely that the planet can support life. The planet's high temperature and lack of water are cited as reasons for its hostility to harboring life.Full Answer >
Neptune has the longest orbital period of any planet within the solar system. The eighth and most distant planet from the sun, it takes Neptune approximately 165 years to complete a single orbit.Full Answer >