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.
Osoyoos Desert Society Osoyoos Desert Society The Osoyoos Desert Society is a non-profit organization that was founded in 1991 to conserve and restore the biodiversitive area of the British Columbian Southern interior. This area had not been the focus of prievious conservation efforts, even though it contains a large concentration of at-risk species and is one of the four most endangered ecosystems in Canada. One of the area's main features is Okanagan Desert, a semi-arid region in the southern part of the Okanagon region of British Columbia, notable for having some plant species not found anywhere else in Canada. Another feature is the