Garamba National Park (French: Parc national de la Garamba) is a national park in the north-eastern Democratic Republic of the Congo covering nearly 5,200 km2 (2,000 sq mi). It is among Africa's oldest parks and was designated a World Heritage Site by UNESCO in 1980 for its protection of critical habitat for northern white rhinoceroses, African elephants, hippopotamuses, and giraffes. Garamba National Park has been managed by African Parks in partnership with the Institut Congolais pour la Conservation de la Nature since 2005. Overview Garamba National Park was established in 1938 and covers an area of 4,900 km2 (1,900 sq mi) in northeastern Democratic Republic of the Congo. It is bounded by Gangala-na-Bodio Hunting Reserve on the west, south, and east, and borders South Sudan on the north and northeast. It is part of the Sudano–Guinean savanna zone. The park is one of Africa's oldest protected areas. It lies in the transition zone between two centres of endemism: Guinea-Congolian and Guinean-Sudanese savanna. These two biogeographic zones support a variety of...

SN 1572 (Tycho's Supernova, Tycho's Nova), or B Cassiopeiae (B Cas), was a supernova of Type Ia in the constellation Cassiopeia, one of eight supernovae visible to the naked eye in historical records. It appeared in early November 1572 and was independently discovered by many individuals. Its supernova remnant has been observed optically but was first detected at radio wavelengths; it is often known as 3C 10, a radio-source designation, although increasingly as Tycho's supernova remnant. Historic description The appearance of the Milky Way supernova of 1572 belongs among the most important observation events in the history of astronomy. The appearance of the "new star" helped to revise ancient models of the heavens and to speed on a revolution in astronomy that began with the realisation of the need to produce better astrometric star catalogues (and thus the need for more precise astronomical observing instruments). It also challenged the Aristotelian dogma of the unchangeability of the realm of stars.The supernova of 1572 is often called "Tycho's supernova", because...