In my opinion, if we could get space vehicles to travel at light-speed, and get stuff such as space suits that can survive at extreme cold and hot temperatures, then I'm all right with traveling to other planets, moons, and stars. I'm against terraforming (changing planet climate to an Earth-like climate): leave Mars and Venus the way it is!
What is your opinion with traveling in space? Do you think that's good? How can we achieve that?