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 ...

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: 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 ...