Blue Light

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Articles about Blue Light

21 published items.

Why is vein green?
Discover science

Why is vein green?

The blue of veins is visible due to the interaction of light with the skin, the amount of oxygen in the blood and other factors.

December 18, 2018
Mysterious blue light in England
1001 mystery

Mysterious blue light in England

A British policeman is on his way home when he suddenly sees a mysterious blue light trail near Birmingham airport.

December 18, 2018
How did arowanas evolve to emit red light?
Oceanography

How did arowanas evolve to emit red light?

Arowanas are frightening creatures, living in dark waters of the bottom of the variable. Their habitats discourage the use of eyes to see or the ability to see colors.

December 17, 2018
Detecting the blue galaxy
Space science

Detecting the blue galaxy

International astronomers have discovered a supposedly oldest blue galaxy in the known galaxies so far.

December 17, 2018