Download or read book Omega written by Jack McDevitt and published by Penguin. This book was released on 2004-10-26 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: A civilization-destroying omega cloud has switched direction, heading straight for a previously unexplored planetary system--and its alien society. And suddenly, a handful of brave humans must try to save an entire world--without revealing their existence.