Space may be the last frontier for humans to explore. The earth have been coming long way and supporting humans. Earth is our home for many year and for many life. Earth is beautiful in terms of what is in it, and it supported what ever we humans can think of and dream. The humans advancement have take us to another level and to think of our life and why we humans exists in the planet Earth. The expanse in which the solar system, stars, and galaxies exist; the universe and the region of this expanse beyond Earth atmosphere.
To begin solving the problems, the question is that if we were to move away from the Earth do we have to carry our Earth stuff belonging there! or to learn a new way and what ever that planet can support the humans like Earth did.
Space time, central concept in the theory of relativity that replaces the earlier concepts of space and time as separate absolute entities. In relativity on cannot uniquely distinguish space and time as elements in descriptions of events. "Good Event".
Space science, body of scientific knowledge as it relates to space exploration; it is sometimes also called astronautic. Space science draws on the conventional sciences of physics, chemistry, biology, and engineering, as well as requiring specific research of its own. The particular disciplines that are relevant depend on the type of mission being planned. There are four basic categories of space mission. The sounding rocket, is restricted to suborbital flights with maximum altitude between 35 and 1,300mi(55-2,100km). Artificial satellites orbit the Earth at altitudes between one hundred and several thousand miles, space probes travel to the moon and planets. The final and most complex category is human space flight, of which the Apollo moon landings, the space shuttle, and the Skylab. The problems that space science must deal with include prediction, and control of trajectories and orbits, telecommunications between spacecraft and Earth spacecraft design and fabrication, and life-support systems for human spaceflight
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