In the last few months, the ultraviolet emissions have risen sharply, and spacecraft are now encountering more atmospheric friction.

The system employs a two color seeker that registers both infrared and ultraviolet emissions in two stages.

Indeed, it was the rise in ultraviolet emissions from the Sun and a sharp increase in solar flares that doomed the spacecraft.

Given his lack of coverings, it was fortunate that Droplet's sun was relatively distant and low in ultraviolet emissions.

Among the many images and spectra that it took, it was used to study ultraviolet emission from Comet Kohoutek.

Variations in ultraviolet emission from the core suggest the presence of a supermassive black hole.

The original bulbs remained available for scientific research and always came with a warning about their ultraviolet emissions.

But flare 78/06/4l4aa was almost tripling ultraviolet emissions.

So far we had seen only very weak, invisible, ultraviolet emission.

Its spiral arms have regions with extensive star formation and have strong ultraviolet emissions.