Universal War One by Denis Bajram

I just finished the excellent series "Universal War One" or "UW1" by the french author/artist Denis Bajram. I had these books quite for a long time (the french originals), but I never came farther than the first book. Now, I managed it to read all books in a week. This complex, sometimes depressing and incredibly well-written and drawn story is a hard SF, and covers timetravel, wormholes, time paradoxes, destructions of planets, and much more.
Alone the destruction of the earth, beginning in NYC (in a world where the WTC was not destroyed) caused me nightmares. It is so realistic and gripping.
About three years ago, it was also published by Marvel Comics.
If you love good science-fiction - pick it up.