how will traqvelling on space change our livs?
89253
besides putting our wallets further into the red, I am not sure. It doesnt sound like its going to be something the "average joe" is going to be able to do... its going to be for the wealthy to find a way to take it off as a tax write off.
356639
I hope so...\n\nI would like to imagine a future of space travel for the human race.\n\nBut I have no expereince in the field to offer suggestions.
1052164
Ask those living in other planets!
885343
Well the sun doesn't become a red giant for a while so maybe we've made some friends by then and can go hang out near their home planet if it hasn't also been ruined.  It is likely that we will be much better at terraforming and travel so hoping over to a good canidate planet where we wouldn't be destroying life that already existed there shouldn't be too difficult a task.
1107979
Definitely.  In only a few billion years our sun will expand and make our planet uninhabitable.  Long before that things will get very difficult for life on this planet.  Evolution of communities of organisms that can travel interstellarly is essentially impossible without intelligence.  The only real way for this experiment in complex life to persist in this universe will be through the actions taken by humans and posthuman intelligent life.  Without the evolution of intelligence, life is doomed to live out a fairly short span of time relative to the duration of the universe in its current life-friendly status.
670964
no, i haven't been to space or around the world. then again, not many people have.\n\nit would be ok and all but just thinking about being out there not knowing "exactly" where you're headed. i'll pass. what if you run out of gas and your ship is stuck out there? what if you lose contact with humans on earth, how will you let them know that you need help??? but then again on the other hand, you are in space seeing everything with your own eyes. nah, i'll stick to seeing space through internet and through my dreams..i'm a lot safer in my bed dreaming...
641207
read this.  http://news.yahoo.com/s/space/20060522/sc_space/towardimmortalitythesocialburdenoflongerlives  i think it WILL happen. and for me i WANT to live longer. I want to see our species travel beyond our solar system and find new life. Then i will be happier.
377213
Yes. If we don't destroy it ourselves, eventually the Sun will burn out and Earth will freeze (all stars eventually burn out), making in uninhabitable for humans. I suppose there is a chance we will have technology to help us live in those conditions (or maybe we will evolve to live in thos conditions) by then, but I doubt it.
720934
The Earth is in danger of becoming almost totally inhospitable for most higher life forms.  Unless we start being more intelligent and get population and resource management under control, the Earth will do if for us.
185289
well let me tell you the first natural resorce we will run out of...it is not oil or natual gas it will be water...the most imporant...at the currant rate of polulation increase we will have to use every last drop of fresh water to surive in about 120 years...of course we can distill sea water but that will only delay the stituation...we are not going to find any more water on this planet so space is the nest best altenative...that is quiet honestly why we should keep space exploration alive...the only thing i would like to see is corpations and indivuals do it as well...\n\ntruthfully there will always be poor...sad to say...but hey look at it this way...did you get a internet connection...did you go out to eat this week...do you have cable tv...and i would be willing to bet that you have a computer as well...you could spent the money on some charity instead...it is not alway the goverment that should fix our problems...sometime we have to do it
83781
No oxygen in space. Need to bring or make your own.\nNo gravity or very weak affects the human body in many ways, one big is it weakens ones bones(and muscles).
1183627
A space craft would use the gravitational force of a large body to increase its velocity and/or change direction.  The speed achieved would depend in part on the strength of that gravitational field.  The nearest star to our sun is about 4 light-years away which means it takes light 4 years to cover that distance (about 23 trillion miles).  Using the most advanced technology we have today, a space craft would only be able to achieve about 10-20% of light-speed so it would take about 20 to 40 years to reach the nearest star at top speed.  However, because of the mass of the fuel and food and water needed to supply the astronaut on such a mission and the time needed for acceleration and braking, it becomes nearly impossible with current technology to reach it in a human lifetime.
503768
If there is life on other planets it will find us before we find them.We are in the stone age when it comes to transportation on the planet. Only 2% of the gas you put in your car is used to propel you.When it comes to space travel we are even more barbaric.
340102
I read all the answers and chewed over what ZAHIER had to say...as you know we are unable to leave earth to travel into deep space with out first using our gravity to gain speed and break away from our own gravity pull.... NO we cant at this time travel in a straight line into space, gravity will alter your course creating curves.
892479
It is absolutely worth the cost.  \n\n1.  The advances made in science by space exploration affect our everyday lives.  Things from velcro to GPS has some aspect of space exploraiton involved.  What is developed for use in space finds its way into our lives on Earth in many wonderful ways.\n\n2.  Exploring the unknown in and of itself is worth it--we must expand our minds, our knowlege, our understanding of the universe.  \n\n3.  Only by learning and knowing the world/universe in which we live can we fully fathom our own part in it.\n\n4.  We need to dream.  We have dreamt of exploring the stars for millennia.  It is in our nature to reach out to the stars.\n\nOf course it is worth it.  And it deserves to be funded with much, much more money than it currently is.
713708
Maybe you could make use of a giant mirror orbiting directly above you geostationarily in space.\n\nSo you could see your house... from the sky. :)
1000407
Einstein was referring to Time Dilation.  Time dilation would make it possible for a fast moving clock to travel into the future, while aging very little. That is, the clock (and according to relativity, any human travelling with it) shows less elapsed time than stationary clocks. For sufficiently high speed the effect could be dramatic. For example one year of travel might correspond to ten years at home. Indeed, a constant 1g acceleration would permit humans to circumnavigate the known universe (with a radius of some 15 billion light years) in one human lifetime. The space-travellers could return to earth billions of years in the future (provided the Universe hadn't collapsed and our solar system was still around, of course). A scenario based on this idea was presented in the novel Planet of the Apes by Pierre Boulle.\n\nA more likely use of this effect would be to enable humans to travel to nearby stars without spending their entire lives aboard the ship. However, any such use of this effect would require an entirely new method of propulsion. A further problem with relativistic travel is that the interstellar medium would turn into a stream of cosmic rays that would destroy the ship unless stark radiation protection measures were taken.\n\nCurrent space flight technology has fundamental theoretical limits based on the practical problem that an increasing amount of energy is required for propulsion as a craft approaches the speed of light. The likelihood of collision with small space debris and other particulate material is another practical limitation. As a result, time dilation is not currently a major factor in space travel.\n\nIf you would like further explanation of this theory, just let me know.