Karoo (crater) Karoo (crater) Karoo is an impact crater on the Asteroid 253 Mathilde, named for the Great Karoo Basin, a coal basin in South Africa. It is 33.4 kilometers in diameter and was the most prominent crater seen during NEAR Shoemaker's Flyby of the Asteroid. The critical crater diameter is the scale at which cratering “goes global” and results in a solitary distinct crater. All smaller craters—however large D might be—are local events. Mathilde is thus a particularly interesting case, since it is the largest asteroid imaged at sufficient resolution to show that its topography is clearly exogenic, governed by impacts.
Tadjourah Region Ethiopian Emperor Haile Selassie. Among the villages in the region include Tadjourah, Kalaf, Sagalou and Hankatta. The region is the largest of the country's 'six' (one of which is sometimes termed a city instead of a region, the country's eponymous capital with the bulk of the country's population, Djibouti City). A mixture of semi-desert mountains and desert, the region is 35.5 times larger than the capital's area and has a population nine times smaller. The region is bordered by Eritrea to the north, Ethiopia to the northwest, the Obock Region to the northeast, the Dikhil and Arta regions and Lake