Tolkien (crater) present in these cold craters including Tolkien. The crater along with that portion of the planet which were the two remaining uncharted polar portions of the planet was first discovered and imaged in around 2011 by the orbiter MESSENGER. Tolkien (crater) Tolkien are one of the northernmost craters on Mercury located at 88.82 S, 211.08 W and is inside the Borealis quadrangle. It is 125 km in diameter and named after the South African born British writer J. R. R. Tolkien, notable for The Lord of the Rings trilogy. The name was approved by IAU's Working Group for Planetary System
U. S. R. Murty U. S. R. Murty Uppaluri Siva Ramachandra Murty, or U. S. R. Murty (as he prefers to write his name), is a Professor Emeritus of the Department of Combinatorics and Optimization, University of Waterloo. U. S. R. Murty received his Ph.D. in 1967 from the Indian Statistical Institute, Calcutta, with a thesis on extremal graph theory; his advisor was C. R. Rao. Murty is well known for his work in matroid theory and graph theory, and mainly for being a co-author with J. A. Bondy of a textbook on graph theory. Murty has served as a managing editor and co-editor-in-chief