The image shown is a Spitzer infrared image of a region very near the center of the Milky Way. Chandra stared at the indicated spot for roughly 250 hours (!) — one of the deepest exposures ever taken using the observatory — and instead of a faint, diffuse glow it found hundreds of faint point sources of X-rays. This strongly indicates that the glow in X-rays seen by earlier telescopes is in fact the combined glow of millions of such discrete sources! (via Chandra cuts through the fog | Bad Astronomy | Discover Magazine)
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The image shown is a Spitzer infrared image of a region very near the center of the Milky Way. Chandra stared at the indicated spot for roughly 250 hours (!) — one of the deepest exposures ever taken using the observatory — and instead of a faint, diffuse glow it found hundreds of faint point sources of X-rays. This strongly indicates that the glow in X-rays seen by earlier telescopes is in fact the combined glow of millions of such discrete sources! (via Chandra cuts through the fog | Bad Astronomy | Discover Magazine)

Source: blogs.discovermagazine.com