If you're looking for manga similar to Vandread Turbulence, you might like these titles.
In the far future, there exists a vast region of space that is yet to be explored called the New Space. The levels of new discoveries and dangers are unknown. The Dian sisters, Reina and Rio, made a promise to each other that they will one day journey into New Space together. The two sisters were separated and Reina became a pilot of the commercial luxury cruise liner spaceship Folshion. Rio is a tomboy who seems to have no self consciousness that she is a girl and who finally finds her sister. Rio is allowed to stay on the Folshion granted she finds herself a role on the ship. Sisters united once again, begin dreaming about the adventure into the new territory.
In the Milky Way galaxy there are many gangs vying for control of the galaxy. Our protagonists Sora Hidaka and Fendy Ecapipo of the Vacca Gang are sent out to investigate a monolith mine that is reported to be run by a "hustler" who is exporting weapons made using the monoliths just outside of Vacca Gang territory in neutral space.
A couple of curious aliens encounter a human space probe sent to investigate an asteroid. It appears to be from the Japanese Hayabusa asteroid probe, which returned samples to Earth during June 2010. The friendly space probe explains how it functions and what its goals are to the aliens.
Who wants to be Princess when you've got the entirety of space to explore? Join Runna and her rag-tag crew as they wander through space in search the unknown, raising hell while encountering everything from the amazing to the surreal.
The year is UC 0123, and humanity is spread out across several colonies and the earth. An age of peace is shattered as the Crossbone Vanguard stage an assault on the station Frontier IV - their goal is to create a new age of aristocracy called Cosmo Babylonia; their method is destroying the federation and part of the populace. Seabrook Arno, a resident of Frontier IV, finds himself forced into the resistance in order to protect his friends. Piloting the new Gundam F91 model, Seabrook must now fight against the Crossbone Vanguard, as well as his childhood friend Cecily Fairchild.