The quasar event is thought to have stimulated the bright emission that characterizes the voorwerp.

Here, bright, long-life light emission is achieved in thin film yellow-emitting manganese-doped zinc sulfide material.

The bright emission seen in visible light (as well as other wavebands) is partially produced by the hot gas in the environment around this black hole.

As no element was known with a bright blue emission they concluded that a new element was present in the minerals.

These materials show bright emission in the visible and near infra-red region of the spectrum [2].

Often, these star-forming cocoons known as Bok globules, can be seen in silhouette against bright emission from surrounding gas.

The low specific heat capacity of noble gases allows heating to higher temperatures, yielding brighter emission.

The production was soon stopped because gallium nitride showed 10-100 times brighter emission.

Cobalt glass almost perfectly filters out the bright yellow emission of ionized sodium.

They can be seen in silhouette against the bright diffuse mid-infrared emission from Galactic plane.