North Korea: North Korea has so far conducted ICBM tests only on lofted trajectories, but has already secured capabilities to launch them at a normal angle. North Korea could test-fire ...

South Korea's defense chief visits U.S. geospatial intel agency amid North Korean threats North Korea could conduct nuke test after U.S. election: South's spy agency director ...

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...

North Korea could test-fire intercontinental ballistic missiles at a normal angle and conduct its seventh nuclear test this year to perfect its nuclear and missile capabilities, South Korean lawmakers ...