Every planet will have a small selection of ships to choose from that will range from 350,000 to 4million. All ships have a certain amount of slots they can use for upgrades, and a maximum amount of people that can board it (crew). To purchase upgrades you will have to visit Capsue Corp. Station. I won't elaborate on what that is yet or how it came to be but use your imagination for now. Through the Capsule Corp. Station, you can purchase upgrades for your ships. These upgrades range anywhere from speed boosts, to weapons, and to gravity chambers. With gravity chambers you can effectively increase the effects of your training sessions!
After a long wait the gravity system will be finally implemented into the game. Here's how it'll work; whenever you arrived on a new planet, and you're not use to the gravity, you will receieve an EXP Debuff until you get use to the gravity there. As you spend z points on that planet you effectively gain experience points towards your gravity level. The higher your gravity level, the more use you become to the level of gravity you're in. However, you do NOT gain any gravity experience points if you are at the same gravity level as the gravity you're training in. In other words, if you are at gravity level 10 and on planet Vegeta which has 10x Earth's gravity, you will not gain any gravity experience. Any gravity you are using will effectively increase the amount of EXP you earn per Z Point.
Gravitrons are big training rooms that simulate harsh gravity conditions in order to increase the effectiveness of training. Gravitrons come in a variety of different levels. The cheapest being 10x Earth's Gravity (500,000 Zenni), and ranging anywhere from there to 20x (for now, additional gravitron upgrades will come along as the story progresses). You can also invite other players into the usage of your gravitron by inviting them to your crew. Anyone in your crew is obligated to ICly be inside of your ship.
Traveling time will vary from planet to planet. It can take anywhere from a week to a week and a half to reach your destination. However, there will be plenty of things to do while you're on your little adventure. You can do quests, maybe even go pirating if you want. There's no harm in attacking another player's ship is there? Travel time can be reduced through speed upgrades. When you set a course for a planet, your ship will give you the date and time of the exact point of arrival. When you reach your destination you enter the "Orbit Phase" of your landing, where your ship is orbiting the planet. The orbit phase will continue until you choose to land your ship. When "Land" is selected then all players will have their locations set to the new planet.