North AsiaNorth Asia or Northern Asia, also referred to as Siberia, is the northern region of Asia, which is defined in geographical terms and is coextensive with the Asian part of Russia, and consists of three federal districts of Russia: Ural, Siberian, and the Far Eastern. North Asia is bordered by the Arctic Ocean to its north; by Eastern Europe to its west; by Central and East Asia to its south; and by the Pacific Ocean and North America to its east. It covers an area of , or 8.
Ray systemA ray system comprises radial streaks of fine ejecta thrown out during the formation of an impact crater, looking somewhat like many thin spokes coming from the hub of a wheel. The rays may extend for lengths up to several times the diameter of their originating crater, and are often accompanied by small secondary craters formed by larger chunks of ejecta. Ray systems have been identified on the Moon, Earth (Kamil Crater), Mercury, and some moons of the outer planets.
HimalayasThe Himalayas, or Himalaya (ˌhɪməˈleɪ.ə,_hɪˈmɑːləjə; ɦɪmaːlɐjɐ; ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the Earth's highest peaks, including the highest, Mount Everest; over 100 peaks exceeding elevations of above sea level lie in the Himalayas. The Himalayas abut or cross five countries: Nepal, China, Pakistan, Bhutan and India. The sovereignty of the range in the Kashmir region is disputed among India, Pakistan, and China.
