Medicine & TechnologyWhy does the aurora change into different colors? Find out the answer in this article to learn what causes it to turn green, pink, red, violet, or white.
The human eye and brain can adjust to a completely new environment, such as another planet, both in terms of color and intensity. Find out more about it in this article.
A clear sunny day would give a blue sky, but is it really blue? How about at night time? Check out how the nature of light, atoms, molecules, and Earth's atmosphere affect the sky's color.
The popular belief that at the end of a rainbow is a pot of gold is now made a reality by using gold nanoparticles to create colors. Check out this new technology that could someday make a better display.
A green fireball reportedly lit up the skies of the UK last Thursday, giving residents a spectacular light show. Read on to find out why a meteoroid can turn into red, orange, or green fireballs when it hit the Earth.