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Because space has no known life, this need not be a consequence, as some space settlement advocates have pointed out. [ 72 ] [ 73 ] However, on some bodies of the Solar System, there is the potential for extant native lifeforms and so the negative consequences of space colonization cannot be dismissed.
Human presence in outer space began with the first launches of artificial object in the mid 20th century, and has increased to the point where Earth is orbited by a vast number of artificial objects and the far reaches of the Solar System have been visited and explored by a range of space probes.
As the space race came to an end, a new rationale for investment in space exploration emerged, focused on the pragmatic use of space for improving life on Earth. [1] The legacy of the space race is that nations continue to pursue space exploration to enhance their prestige. [ 2 ]
Space debris from rocket bodies orbiting Earth is posing an increased threat to aircraft while falling from space, according to new research. While the probability of space junk striking an ...
Space exploration also gives scientists the ability to perform experiments in other settings and expand humanity's knowledge. [67] Another claim is that space exploration is a necessity to humankind and that staying on Earth will eventually lead to extinction. Some of the reasons are lack of natural resources, comets, nuclear war, and worldwide ...
The physical universe is defined as all of space and time [a] (collectively referred to as spacetime) and their contents. [10] Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.
“The only way to have a life is to commit it to like crazy.” ... another opens; but often we look so long at the closed door that we do not see the one which has been opened for us ...
Psychological and sociological effects of space flight are important to understanding how to successfully achieve the goals of long-duration expeditionary missions. Although robotic spacecraft have landed on Mars , plans have also been discussed for a human expedition , perhaps in the 2030s, [ 1 ] for a return mission.
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