The Sun is pure white when viewed from space.

The Sun is a star with a surface temperature of about 5,500 degrees Celsius (9,932 degrees Fahrenheit). Objects at this temperature emit a wide range of light colors. When these colors reach our eyes all at once, the human brain perceives the color as white.Earth's atmosphere is made of nitrogen and oxygen molecules. These molecules scatter shorter wavelengths of light, like blue and violet, in different directions. This scattering is why the sky looks blue during the day.Because the blue light is scattered away, the remaining light that reaches our eyes looks slightly yellow. This effect is called Rayleigh scattering. It was named after Lord Rayleigh, a physicist who explained the process in the 1800s.The color change is even stronger during sunrise and sunset. At these times, sunlight travels through more of the atmosphere to reach you. Almost all the blue light is filtered out, leaving only the longest wavelengths like red and orange.Astronauts on the International Space Station see the Sun as a bright white circle. Pictures from the Hubble Space Telescope also show its true white color. Many photos on Earth use filters to make the Sun look yellow so it is easier to see.