Black Sun — Dan Rix

Orbiting three hundred miles above an alien planet, Space Shuttle Endeavour desperately searches for signs of life following the mass abduction of all humanity. Its crew: an Air Force colonel, an astronaut, and two teenagers. To Leona, the mind-numbing hours of radio silence mean everyone who loves her is dead. Onboard, the one boy she might confide in hates her guts. It's all she can do to not give up. But when an explosion knocks the shuttle out of orbit, forcing them to crash land on the dead planet, it seems all hope is lost. But no one expects the bizarre reality awaiting them on the surface.