Nyxia by Scott Reintgen
Emmett Atwater isn’t just leaving Detroit; he’s leaving Earth. Why the Babel Corporation recruited him is a mystery, but the number of zeroes on their contract has him boarding their lightship and hoping to return to Earth with enough money to take care of his family.
Forever.
Before long, Emmett discovers that he is one of ten recruits, all of whom have troubled pasts and are a long way from home. Now each recruit must earn the right to travel down to the planet of Eden—a planet that Babel has kept hidden—where they will mine a substance called Nyxia that has quietly become the most valuable material in the universe.
But Babel’s ship is full of secrets. And Emmett will face the ultimate choice: win the fortune at any cost, or find a way to fight that won’t forever compromise what it means to be human.
Review from School Library Journal:
Emmett Atwater is in need of a great deal of money to help his mother. So when Babel Communications offers him a fortune and a once-in-a-lifetime deep-space experience, he jumps at the opportunity. Now he and 10 other broken and desperate recruits are fighting for the right to mine a planet that humanity does not know exists. But are they just competing against one another, or is there more to Babel's plans? Can the cost of human lives be measured against the value of Nyxia, a new substance found only on the planet Eden? At what cost do success and failure come? An amazing adventure of intelligence and strength, this sci-fi book presents diverse and complex characters in a tale about greed and internal compromise. The author brings to life more than a dozen characters with depth and individual personalities and agendas. This is a wonderful example of how personal and corporate values are often intertwined despite being at odds with each other.