"Somewhere within our crowded sky, a crew of wormhole builders hops from planet to planet, on their way to the job of a lifetime. To the galaxy at large, humanity is a minor species, and one patched-up construction vessel is a mere speck on the starchart. This is an everyday sort of ship, just trying to get from here to there. But all voyages leave their mark, and even the most ordinary of people have stories worth telling. A young Martian woman,...

The Next--the hyper-intelligent post-humans--realize that the missive they received from the center of the galaxy contains instructions for kick-starting the development of an immense artificial intelligence knows as The Machine. But to build this computer the size of an Earth continent, they must obtain help from the more populous and still industrious worlds of mankind.

The behavioral psychologist onboard a survey ship headed to a planet ripe for colonization, Dr. Grace Park must determine the origin of a strange phenomenon that is causing the crew to suffer mental breaks without losing her own mind in the process. Psychologist Dr. Grace Park is on the Deucalion, a survey ship headed to an icy planet in an unexplored galaxy. She is to observe the thirteen human crew members aboard the ship as they assess the colonization...

"The Coast Guard must prevent the first lunar war in history. A lifelong Search-and-Rescuewoman, Coast Guard Captain Jane Oliver is ready for a peaceful retirement. But when tragedy strikes, Oliver loses her husband and her plans for the future, and finds herself thrust into a role she's not prepared for. Suddenly at the helm of the Coast Guard's elite SAR-1 lunar unit, Oliver is the only woman who can prevent the first lunar war in history, a conflict...

One hundred years before Ender's Game, the aliens arrived on Earth with fire and death. Earth Afire by Orson Scott Card and Aaron Johnston is the story of the First Formic War.
Victor Delgado beat the alien ship to Earth, but just barely. Not soon enough to convince skeptical governments that there was a threat. They didn't believe that until space stations and ships and colonies went up in sudden flame.
And when that happened,

...