Neptune radiates MORE heat that it receives from the Sun - the reason is still unknown. Possible reasons are atmospheric interaction or magnetic waves.
Heat radiates more from one side of your house because that side receives direct sunlight, which warms up the surface and causes it to radiate heat. The other side may be in the shade or cooler, so it radiates less heat. Overall, the temperature difference between the two sides creates this effect.
Neptune is much farther from the Sun than Earth, so it receives much less sunlight and heat. Additionally, Neptune's atmosphere contains methane, which acts as a greenhouse gas, trapping heat and contributing to its colder average temperature compared to Earth.
Mars
Dark colors like black are known to be the worst emitters of infrared radiation as they absorb more heat and radiate less. Lighter colors, on the other hand, tend to reflect more heat and radiate better.
Neptune is stormy due to its dynamic atmosphere, which is composed mainly of hydrogen, helium, and methane. The planet's internal heat drives strong winds and turbulent weather patterns, leading to the formation of large storms. Additionally, its distance from the Sun means it receives less solar energy, but the heat from its interior contributes to the intensity of these storms. The combination of internal heat and atmospheric composition creates a highly active and changeable weather system.
Uranus is often considered the coldest planet in the solar system because it has a lower average temperature than Neptune, despite Neptune being further from the Sun. This is primarily due to Uranus's unique axis tilt and lack of significant internal heat. While Neptune emits more heat than it receives from the Sun, Uranus has a colder atmosphere because it radiates less heat overall, leading to frigid temperatures. As a result, Uranus holds the record for the lowest temperature observed in the solar system at around -224 degrees Celsius (-371 degrees Fahrenheit).
Yes and no. Neptune gets very little sunlight because it is so far from the sun. When light does reach Neptune, the red spectrum of the dim sunlight is absorbed my the methane atmosphere and the blue light spectrum is reflected off the methane, which gives the planet its blue colour.
The moon does not radiate any heat or light of its own, it merely reflects the sun's heat and light. But since the moon is many times smaller than the sun, it only receives a small fraction of the heat and light -- and much less when it is in the shadow of the earth. However, most of the heat and light striking the moon is absorbed by the moon itself, or is reflected into space, thus there's very little reflected back to earth.
The moon does not radiate any heat or light of its own, it merely reflects the sun's heat and light. But since the moon is many times smaller than the sun, it only receives a small fraction of the heat and light -- and much less when it is in the shadow of the earth. However, most of the heat and light striking the moon is absorbed by the moon itself, or is reflected into space, thus there's very little reflected back to earth.
The moon does not radiate any heat or light of its own, it merely reflects the sun's heat and light. But since the moon is many times smaller than the sun, it only receives a small fraction of the heat and light -- and much less when it is in the shadow of the earth. However, most of the heat and light striking the moon is absorbed by the moon itself, or is reflected into space, thus there's very little reflected back to earth.
Because they absorb them better. If a surface were to absorb a certain radiation very well and not radiate it well, an apparatus could be made that violates the Second Law of Thermodynamics (creating a temperature difference where none existed previously). Therefore, it is not possible. You might also say that the dark surface is "transparent in both directions" (in and out). This is for a specific radiation; on the other hand, it is possible to have surfaces that radiate and absorb electromagnetic waves of one frequency well, and not so well at other frequencies.
The further a planet is from the sun, the less light and heat radiation it gets from the sun leaving it a cooler planet. However, a planet with a gaseous atmosphere is less likely to radiate away the planets heat so it may retain more of the solar heat.