light color articles

What causes blue meteors?

The fleeting streak we call a meteor, or shooting star, paints the night sky with light, and the color of that light is ...

What is that bright light in the sky after sunset?

That persistent, brilliant point of light low in the western sky shortly after the sun dips below the horizon is a commo...

What is the light from Orion's belt?

The light emanating from the region surrounding Orion's Belt is not a single phenomenon but a collection of brilliant st...

What color would an astronaut see the sky?

Astronauts looking up from orbit report a view dramatically different from what we experience on the ground: the sky is ...

What are the colors of the nebulae?

The universe presents an astonishing palette when we look toward nebulae, those immense clouds of gas and dust that repr...

What information does the light from a star tell us?

The light that travels across unimaginable cosmic distances to reach our eyes is far more than just a faint twinkle; it ...