Exploration In Space.

The article offers information on the physiological problems associated with space exploration. It reports the respiratory problems connected with space flight, and mentions the situation of extremely reduced pressure faced by the space explorers. It also mentions the distances between earth, moon and other planets of the solar system, and discusses the solutions for the problems associated with weightlessness, air pollution, and gravitational forces. Also discussed are the topics that need further research and biological explanation including the effects of silence, acceleration-deceleration, acoustic energy, and vibrations on men in the space.