Phoenix, Volume 6: Nostalgia — Osamu Tezuka

In the 25th century, Romy and her husband George purchase the planet Eden 17 from an unscrupulous space real estate agent. Unfortunately, their dream planet turns out to be an arid wasteland. During their desperate search for water, George is killed, leaving Romy and her unborn child to survive on their own. How far will Romy go to build a civilization on Eden 17?!