In six–eight sentences, write a summary about the construction of composite images of celestial objects. Explain how they are made using spectra data, how they compare to what simple and small optical telescopes can see, and how they are useful to scientists.

Composite images that combine the data from different wavelengths, such as Chandra (X-ray), Hubble (optical) and Spitzer (infrared) provide an even more comprehensive analysis of the processes taking place within astronomical objects such as stars, galaxies and nebulas.

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