Earthbound

"One of science fiction's most reliable practitioners" (San Francisco Chronicle) continues his saga of space exploration.
The mysterious alien Others have prohibited humans from space travel-destroying Earth's fleet of starships in a display of unimaginable power. Now Carmen Dula, the first human to encounter Martians and then the mysterious Others, and her colleagues struggle to find a way, using nineteenthcentury technology, to reclaim the future that has been stolen from them.