The oral vaccine is credited with dramatically reducing the number of children paralyzed by polio.

were replacing parts of the station when the tool bag was inadvertently lost.Flight controllers spotted the tool bag using external station cameras.

NASA has been looking for ways to limit space debris since 1979Created by combining infrared data taken by Webb and visible light observations collected by Hubble.Finding transients in faraway galaxies was one of the research teams main goals when they set out to combine observations from different telescopes.

Both images feature hundreds of galaxies.an astronomer and professor at the University of Missouri.

who was the lead author of one paper reviewing the results of the joint galactic study by Webb and Hubble.

an astronomer with Arizona State University.His pledge to strengthen international sanctions is a betrayal of South Koreans wish to enhance inter-Korean relationships.

whether to be a puppet of the U.Moon has little room to make a breakthrough with Pyongyang.

Moons firm stance would fall short of its expectations.the South Korean government looks lame.