wavelength

Lasers are actually not only red, but there is a very good reason why they become the most popular laser today.

Red is a color associated with danger. But what is the origin of this relationship?

Fireworks have splendid colors including yellow, orange, green, blue, purple due to the glowing process of metal salts inside it.

Pink is the color of femininity, spring and romance. But scientists are arguing that pink doesn't actually exist but is just a product of the human mind. Pink is actually a

Scientists have discovered that red is the preferred color for many fish species, and some species fluoresce in vivid colors.

Modern astronomy allows us to have more detailed images of the sky than ever before. The ROSAT, Fermi and Planck telescopes have shown us the universe image through different

The astronomers' new findings point to a giant group of gas extraterrestrials outside the solar system covered by water-storing clouds.

Leading astronomers from 9 countries around the world will meet to plan the construction of SKA, a hub for low-frequency wave detection antennas in Perth this week.

Each color corresponds to 1 wavelength, frequency and carries different energy. Purple light has the shortest wavelength in the visible spectrum.