71.   The space observatory used the telescopes to observe and measure ultraviolet radiation from celestial objects.

72.   The stars in these galaxies were so hot at the time that they emitted mostly ultraviolet radiation.

73.   The suspected culprit is ultraviolet radiation, which appears to weaken the plastic release button in the seat belts after long exposure.

74.   The water vapor or chlorine released by the sea salt could have triggered reactions that destroyed the ozone layer, exposing the animals below to withering ultraviolet radiation.

75.   The thin ozone layer shields Earth from solar ultraviolet radiation that can cause skin cancer and cataracts in humans and be detrimental to crops and farm animals.

76.   Their telescope was sensitive to the very short wavelengths of ultraviolet radiation.

77.   Their work is of vital importance to all citizens of the globe because the ozone layer absorbs dangerous ultraviolet radiation before it can reach the surface of the Earth.

78.   This layer adds color to the roofing material, but its main function is to protect the asphalt base from the intense ultraviolet radiation of the sun.

79.   Ultraviolet radiation can cause melanoma in a fish but not, apparently, in any other animal.

80.   Ultraviolet radiation, which is highly energetic, bombards the basic units of DNA inside skin cell nuclei, causing many of them to fuse into nonfunctional fragments.