About two thirds of spiral galaxies, including the Milky Way, feature a central bar of stars and long arms spiralling loosely around the nucleus. NGC 613, discovered in 1798 by William Hershel, provides a textbook example as seen in this beautifully detailed image captured by the Hubble Space Telescope and released 11 January. NGC 613 is located about 67 million light years from Earth in the southern constellation Sculptor.
NASA has selected the potential next destination for the New Horizons mission to visit after its historic 14 July flyby of the Pluto system. The target is a 30-mile-wide Kuiper Belt object (KBO) known as 2014 MU69 that orbits nearly a billion miles beyond Pluto. New Horizons expects to reach the object, nicknamed “PT1” (Potential Target 1), on 1 January 2019.