Credit: Charles J. Sharp

CC BY-SA 4.0

Amblyeleotris rubrimarginata is a fish in the family Gobioidei, the gobies. It is found on reefs or in seagrass beds in the western Pacific, from New Caledonia to the Great Barrier Reef and around New Guinea, Indonesia, Malaysia and the Philippines, at depths from 3 to 26 metres (10 to 85 ft). As with other Amblyeleotris species, it has a symbiotic relationship with alpheid shrimps, with an individual or a pair of gobies sharing a burrow with a pair of shrimps. A. rubrimarginata is up to 8 centimetres (3.1 in) in length, and its background colour is whitish, marked with five vertical brown or orange bars. It is most readily distinguished from its congeners by a row of red spots along the margin of both dorsal fins and the upper part of the caudal fin, and also by a prominent black spot just above and behind the eye. This A. rubrimarginata fish was photographed at the resort of Anilao in Mabini, Batangas, in the Philippines.

Credit: Diego Delso

CC BY-SA 4.0

Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. Wild-looking at visible wavelengths, the active galaxy is also a prodigious source of x-rays and radio emission. NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy's core. Narrowband image data used in this sharp telescopic image highlights the resulting galactic debris and filaments of glowing gas, some up to 20,000 light-years long. The filaments persist in NGC 1275, even though the turmoil of galactic collisions should destroy them. What keeps the filaments together? Observations indicate that the structures, pushed out from the galaxy's center by the black hole's activity, are held together by magnetic fields. Also known as Perseus A, NGC 1275 itself spans over 100,000 light years and lies about 230 million light years away.

Credit & Copyright: Michal Wierzbinski, Hellas-Sky