I had blackscreen problem today too! It was due to an AMD Radeon graphics driver update!!
Rolling my drivers back to 12.1.1 fixed the problem!!!
Nah, the game will run fine with the 18.12.2/.3 drivers, only problem I have with them is some major texture flickering--however, if you are playing NMS I recommend dropping back to the 18.104.22.168s, which do not have the problem--I agree with you that much...;)
Be sure and let AMD know by submitting a bug report through the drivers--I already have. The crap of it is that the 18.12.3 drivers (do not use the 18.12.2--the 18.12.3 driver was released the *next day* and it is much better!) runs great with everything else--it's just NMS 1.77 that has this problem. I get way past a black screen however--I can fully load a saved game and everything is fine *except* for the major texture flickering. Steam has a thread about it in their NMS tech-support forum.