From the Nebula Award winning author of "Timescape" and "Foundation s Fear" comes a hard-science thriller about the race to Mars.When an explosion of the rocket launching the Mars Transit Vehicle kills four crewmen, the US decides to redirect its energies to near-Earth projects, killing the manned mission to Mars. But tycoon John Axelrod assembles a consortium to fund the project, and he expects to net billions. But a European-Asian airbus will make a similar expedition. Now, the race is on to get to the Red Planet first."