NASA's Hubble Space Telescope took this images of the asteroid 1 Ceres. The bright spot that appears in the image is a mystery. It is brighter than its surroundings. Yet it is still very dark, reflecting only a small portion of the sunlight that shines on it.
<a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="w:NASA">NASA</a>, <a href="https://en.wikipedia.org/wiki/European_Space_Agency" class="extiw" title="w:European Space Agency">ESA</a>, J. Parker (Southwest Research Institute), P. Thomas (Cornell University), and L. McFadden (University of Maryland, College Park), and M. Mutchler and Z. Levay (<a href="https://en.wikipedia.org/wiki/Space_Telescope_Science_Institute" class="extiw" title="w:Space Telescope Science Institute">STScI</a>)
Image released 2005 September 7
<a rel="nofollow" class="external free" href="http://hubblesite.org/newscenter/newsdesk/archive/releases/2005/27/text/">http://hubblesite.org/newscenter/newsdesk/archive/releases/2005/27/text/</a> (Cropped from original image)