If you look at the game map you'll see that it is set up like a grid. A massive massive grid :P

You'll be able to choose where you go in this sector and while many squares are "empty" so to speak you'll be able to choose where you go and what your next mission is among the available options within sensor range.

This thread can be used to discuss navigation and exploration plans.

Where are we going?

Are we in square 5U, now? And is that the same square the ailing planet is in?

W5 and yes. Its the same sector with the double M-Class planets discovered earlier now broadcasting distress.