The image is blurred. Long sight is due to the eyeball being too short, or the lens cannot be made thick enough by the ciliary muscles to focus the light rays on the retina. Long sight often ...

M16 (Eagle Nebula)| Chandra detects X-rays from young stars in the region, including one embedded in a pillar. A supernova ...

Image caption, Frosted glass is translucent ... Ray diagrams are used to show the path that light takes. The rays of light are represented using straight lines, with an arrowhead to show the ...

If you go to the Chandra website, you can swap between the four wavelengths of light comprising the composite image. The X-ray (blue and white) data came from Chandra and took five days ...