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Light bulbs emit light.
Technetium doesn't emit light.
Yes galaxies emit light
bulbs emit light
The Earth does not emit light, it like the moon reflects light
The earth does not emit light, but it does reflect light from the sun.
Objects that emit light are usually referred to as incandescent.
Light waves do not emit radiation, light waves are radiation.
the sun only emit light. not the moon. it will reflect the light of the sun.
planets, moon,etc do not emit light on their own.
Light emitting diodes will emit light when electicity is passed through them.
No. Eyes are not luminous. They observe or perceive light but they do not emit light. Luminous means "emit light." There are various species of animals, such as deer, cats, and dogs, whose eyes have the ability to reflect light which sometimes make them appear to glow in the dark as they reflect a flashlight, headlight, or other light that is shining in their direction. But even then, the eyes do not produce their own light so they are not luminous.