Shel and his friend Dave journey through time in search of Shel's missing physicist-father, but make a devastating discovery that changes their lives forever when Shel violates their agreement not to visit the future.

In the year 2204, tragedy and terror forced a scientific team to prematurely evacuate Maleiva III. Nineteen years later, a rogue moon hurtling through space is about to obliterate the last opportunity to study this rare, life-supporting planet. With less than three weeks left before the disaster, superluminal pilot Priscilla "Hutch" Hutchins -- the only even remotely qualified professional within lightyears of the ill-fated planet -- must lead a...

We are alone. That is the verdict, after centuries of Search for Extra-Terrestrial Intelligence missions and space exploration. The only living things in the Universe are found on the Nine Worlds settled from Earth, and the starships that knit them together. Or so it's believed, until Dr. Kimberly Brandywine sets out to find what happened to her clone-sister Emily, who, after the final, unsuccessful manned SETI expedition, disappeared along with the...

To boost waning interest in interstellar travel, a mission is sent into deep space to learn the truth about "moonriders," the strange lights supposedly being seen in nearby systems. But Academy pilot Valentina Kouros and the team of the starship Salvator will soon discover that their odyssey is no mere public-relations ploy, for the moonriders are not a harmless phenomenon. They are very, very dangerous-in a way that no one could possibly have imagined....

When someone--or something--leaves a series of mysterious satellites orbiting around diverse planets in the galaxy, a crew sets out to uncover the origins of the satellites and their potential danger to humankind.

It turned up in a North Dakota wheat field: a triangle, like a shark's fin, sticking up from the black loam. Tom Lasker did what any farmer would have done. He dug it up. And discovered a boat, made of a fiberglass-like material with an utterly impossible atomic number. What it was doing buried under a dozen feet of prairie soil two thousand miles from any ocean, no one knew. True, Tom Lasker's wheat field had once been on the shoreline of a great...

When an entire town seemingly vanishes from a planet with conditions favorable to life, Alex Benedict and his archaeological crew must solve the mystery of how these aliens disappeared so rapidly--and why--which raises the stakes as they each look to maketheir mark on history.

With Polaris, multiple Nebula Award-nominee Jack McDevitt reacquainted readers with Alex Benedict, his hero from A Talent for War. Now, Alex and his assistant, Chase Kolpath, return to solve a riddle that leads them to the edge of known space.