2015 has been named the International Year of Light (and light-based technologies) by the United Nations, and NASA's Chandra X-ray Observatory has some special treats to help kick it off.

As you can probably guess based on its name, the Chandra X-ray observatory (launched in 1999) captures the X-rays emitted by celestial objects. But X-rays are just one piece of the full spectrum of light.

These images all combine data from multiple telescopes -- ones that are tuned to capture different wavelengths of light -- to create one stunning picture. You can see the individual shots that made up the composite images at the Chandra Web site.

The observatory is also running a project called "Light: Beyond the Bulb" where scientists and artists can submit their own examples of the power of light. From bio-luminescent lakes to psychedelic shots of light-bulbs under X-rays, the collection will give you a new appreciation of just how beautiful -- and varied -- light is in our universe.

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