‘Black Marble’ (Courtesy NASA) NASA unveiled a new view of our world today. Black Marble is a new high-resolution image that shows the entire surface of the Earth at night. The image is a stitched-together composite constructed from multiple images taken by the Suomi National Polar-orbiting Partnership (NPP) satellite as it made over 300 orbits of the planet. The images were then assembled and overlaid onto NASA's already-existing Blue Marble composite to produce this picture. Dec 5, 2012.
NGC 4911 (also known as UGC 8128) is a barred spiral galaxy of roughly 110 light-years across, located about 320 million light-years away in the northern constellation of Coma Berenices (Berenice’s Hair), while it is speeding away from us at approximately 7985 kilometers per second. Although it is quite rare for a spiral galaxy to be situated at the heart of a cluster of galaxies, NGC 4911 lies deep within the Coma Cluster.