Why are we wasting time on space exploration?

Because humans are curious and can't leave well enough alone. I agree that we need to grow more as a species before we attempt to meet other intelligent life. Our track record shows that there is a good possibility that we'll be wiped out if/when we do find other intelligent life, especially if they're more advanced than we are. I think many people believe that an advanced race of aliens will help us grow but I think, if we find an alien race more advanced than we are, they'll want nothing to do with us and will consider us children and will block us from leaving our planet.

Because we are intilligent beings.

They need a job just as we keep getting upgrades for mobiles and other devices. Companies would close if they did not do that.

We could not even take good care of our earth, but we have to go around to check if there is another planet we can destroy.

I couldn't agree more. There is so much that needs fixing here on earth. We don't need more problems.

I actually think it is quite useful, and just part of human nature to explore. Think of this another way. On our own planet had we never explored beyond what we knew, the world would be a very different place today. What if America had never been "discovered?" Exploration is important to grow and expand, not only where we can go and the places we can discover, but we learn things too that we did not know. And some of that is good stuff we may find very useful at some point. It also helps us to better understand who we are and why we are here. There are also other resources to consider. Precious metals and other things that we might one day need. And maybe one day we even find a planet similar to ours that we can enjoy and pioneer. Imagine the great sites we might one day see that we could never see here. The waters we could potentially sail and perhaps even meet new and exciting other intelligent life forms that we can learn and prosper and expand our horizons from. We explore because we are but a very tiny spec in the grander scheme. And if we don't know what else may be out there, even dangers, it could destroy us to not look.

Yes,the pollution and ecological balance on our own planet are topics of concern to us all !

I agree we would probably start a fight with them. But it would be interesting to know.

I am always asking the same thing. Surely sending things up into space must contribute to climate change in a bad way too.