"Once again, Earth is under attack. An alien species is poised for a final assault. The survival of humanity depends on a military genius who can defeat the aliens. But who? Ender Wiggin. Brilliant. Ruthless. Cunning. A tactical and strategic master. And a child. Recruited for military training by the world government, Ender's childhood ends the moment he enters his new home: Battle School. Among the elite recruits, Ender proves himself to be a genius...

"Leigh grew up in Rotterdam, drawn to the waterfront as an escape from her unhappy home life and volatile father. Enchanted by the undersea world of her childhood, she excels in marine biology, traveling the globe to study ancient organisms. When a trench is discovered in the Atlantic Ocean, Leigh joins the exploration team, hoping to find evidence of Earth's first life forms--what she instead finds calls into question everything we know about our...

After an extraordinarily bad day during which Cassandra Dankworth's boyfriend breaks up with her and she is fired from her job, she wakes up the next day and has the chance to do it all again, differently.

The second book in the full-color illustrated sci-fi adventure series that keeps readers on the edge of their seats! Children from all over the world are trying to complete the game. Marie, the fourteen-year-old daughter of a wealthy arms manufacturer in Norway, uses unorthodox methods to win. But what is her prize? Marie is flown to Area 51 in Nevada, where she's recruited into a select group of children who are leaving earth to investigate and settle...

"Explore the science behind some of your favorite popular science fiction tropes--from escaping a black hole to riding a space elevator to the stars--in this illustrated guide from NASA advisor and host of the popular Tested podcast Offworld"--

"Destry's life is dedicated to terraforming Sask-E. As part of the Environmental Rescue Team, she cares for the planet and its burgeoning eco-systems as her parents and their parents did before her. But the bright, clean future they're building comes under threat when Destry discovers a city full of people that shouldn't exist, hidden inside a massive volcano. As she uncovers more about their past, Destry begins to question the mission she's devoted...

Spensa needs all the knowledge she gathered in the Nowhere to end the Superiority's quest for galactic dominance, but first she must determine how far she is willing to go for victory.

Trace the history of life science in the first of a four-part MITeen series by mega-best-selling author Joy Hakim, who brought us The History of US.

"Like most high school seniors, Alexandra Lucas is caught between living in the moment and an unknown future. Her anxiety disorder doesn't make that any easier. But she's coping—until her train stops on the way home from a concert with her boyfriend. At first, she's worried about breaking curfew. Then terror echoes through their train car. A mysterious doorway has appeared beside the tracks, and a hologram claiming to be a human from the future...

A tale of first contact follows a range of characters as they question their place in the universe and what it means to be human when spaceships arrive at Earth and then depart just as suddenly. When the spaceships arrive-- and then depart suddenly without a word-- it creates many forms of uncertainty on our planet. When his kids blithely ponder skinning people to see if they're aliens, Blaine begins to crack. Half a continent away, Heather watches...