Space Exploration

Space exploration Space exploration is the physical exploration of outer space, both by human spaceflights and by robotic spacecraft.
Waste of money
One of the biggest criticisms against space exploration is the cost. According to the University of Florida, it costs around $500 million to launch a space shuttle. These expenses will only go up when considering longer-term space travel, such as manned explorations to Mars or Jupiter's moons. While new technology may certainly limit the inefficient costs involved in space exploration, many argue that it is still money that could be better spent on more pressing issues.

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inventions are uneconomical 
The Americans spent )7millions developing a pen that would write in space any attitude(no gravity)   the Russians used pencils. 

On just a cost-analysis, inventions for space use cost more to develop than for the same invention to be used on earth, and are economically not feasible. 

This could be much more usefully used here on earth for worthwhile purposes (e.g., for health, education, and especially global warming). 
Finally, the International Space Station has, over the years of its existence, cost an estimated $142 billion and that's not including the plethora of smaller space missions, other space agencies and other expenses involved in space exploration.

As you can see, these are big numbers. Yet there's an urgent need for funding to save lives down here on Earth, too.

Although space exploration certainly isn't over-funded, should we keep throwing money into space exploration when there are so many examples of human suffering?

space program has been wedded 
to a space-shuttle system that is too expensive, too risky, too big for most of the ways it is used, with budgets that suck up funds that could be invested in a modern system that would make space flight cheaper and safer. ...