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Ultraviolet Radiation

Electromagnetic radiation with wavelengths shorter than visible light, capable of ionizing atoms and molecules.

Source: apod.nasa.gov

APODs including "Ultraviolet Radiation"

30 Doradus Across the Spectrum

24/12/1997

30 Doradus Across the Spectrum
Image Credit: NASA Astronomy Picture of the Day

30 Doradus is lit up like a Christmas tree. Shining in light across the electromagnetic spectrum, 30 Doradus glows because of all the energetic processes that go on there. A distinctive region visible in a Milky Way satellite galaxy called the Large Magellanic Cloud (LMC), 30 Doradus is a hotbed of star formation, supernova explosions, and ionized plasma. The above image is a composite of three pictures taken in three different wavelength bands of light. Red represents X-ray emission created by gas as hot as 1 million degrees Kelvin. Green represents emission from ionized hydrogen gas, and blue represents ultraviolet radiation primarily emitted by hot stars. At the conclusion of this symphony of star formation and light in a few million years, astronomers expect that a new globular cluster will have formed.