half way through transcendent the third part of the stephan baxter trilogy that is actually a quartet, i have not read the second part as i am reading the series in timeline sequence not chronologically as published. 
baxter says you can read any of his books in any order, even as stand alone novels but i think this way appeals to me following the whole sequence from the big bang to the end, the fact that half way through the time line humans and their enemy the xeelee discover time travel and use it in their conflicts make the whole idea of reading them chronologically somewhat redundant as which is why i am following the timeline. 
i'll post a full review later but it's fantastic so far, i'm warming to baxter and his style, he encompasses a wide screen, ages and generations, the scale of things he describes is very similar to aliester reynolds and i think this may have something to do with the fact they are both scientists.