Hidden caches of dark matter slightly skew images of thousands of galaxies that share the same patch of sky. (sciencenews.org)
NASA's cancellation of a final planned servicing mission to Hubble means that a newer camera will not examine the same patch of sky more deeply in infrared light, potentially exposing even fainter objects. (sciencemag.org)
Another lead comes from the Chandra Deep Field South, an image created by a space - based x-ray telescope that observed the same patch of sky for a cumulative 81 days. (sciencemag.org)