Space Travel
Space travel is very important in the future. It will allow the human race to survive in the future when the time comes when Earth is no longer useful to human beings. Space travel would allow humans to colonize more land and even communicate with other lifeforms that may live in this galaxy. In space travel, you must have some type of fuel that will allow you to reach very high speeds(i.e 50% speed of light). So for this, you might want to use the energy produced by nuclear fusion. Nuclear fusion is when atoms collide into each other under very high pressure. This would create enough fuel for you to reach very high speeds. Although you have the fuel you need to go at high speeds, you can also use the planets. The gas giants have an immense gravitational pull and you can exploit this by maneuvering your rocket around, for example, Jupiter. This will allow you to gain more speed after you exit the gravitational pull of Jupiter. This technique has been used by previous satellites(i.e ...