The Orphans Trilogy Series by Sean Williams, Shane Dix

In the early 22nd century, humans' electronic reproductions, known as engrams, have been sent on fact-finding missions throughout the known universe--searching for signs of alien life. But what they find exceeds their wildest dreams--in nightmarish proportions. "Includes one of the most heart-stopping moments I've encountered in a novel in years." (Jack McDevitt)

After Earth's demise, the last survivors have one goal: to contact any extant colonies left and warn them of a coming menace. Alien ships are arriving intent on the destruction of everything in their path. But then help arrives-from an unexpected and unwelcome source.

Earth has been destroyed, and with it the natural order of things. What little that remains of humanity is caught between the Spinners and the Starfish, unsure whether to run, hide, or fight back. None of the options is particularly attractive, and none offers much hope for survival.