In this picture book, a boy writes a letter to an imagined alien, explaining all the things he will need to know about Earth and the people who live here--and adding a postscript asking what the alien might look like.

"Edward Ashton's Antimatter Blues is the thrilling follow up to Mickey7 in which an expendable heads out to explore new terrain for human habitation. Summer has come to Niflheim. The lichens are growing, the six-winged bat-things are chirping, and much to his own surprise, Mickey Barnes is still alive--that last part thanks almost entirely to the fact that Commander Marshall believes that the colony's creeper neighbors are holding an antimatter bomb,...

"Cassie Sullivan and her companions lived through the Others' four waves of destruction. Now, with the human race nearly exterminated and the 5th Wave rolling across the landscape, they face a choice: brace for winter and hope for Evan Walker's return, or set out in search of other survivors before the enemy closes in"--

Everyone is curious about life in the Universe, UFOs and whether ET is out there. Over the course of his thirty-year career as an astrophysicist, Adam Frank has consistently been asked about the possibility of intelligent life in the universe. Are aliens real? Where are they? Why haven't we found them? What happens if we do? We've long been led to believe that astronomers spend every night searching the sky for extraterrestrials, but the truth is...

"Harvard's top astronomer lays out his controversial theory that our solar system was recently visited by advanced alien technology from a distant star. In late 2017 scientists at a Hawaiian observatory glimpsed an object soaring through our inner solar system, moving so quickly that it could only have come from another star. Loeb showed it was not an asteroid; it was moving too fast along a strange orbit, and left no trail of gas or debris in its...

"A deeply immersive story that balances fantastic, original world building with spine-tingling adventure." --Sabaa Tahir, author of the New York Times bestselling series An Ember in the Ashes It's been a century of peace since Earth became a colony of an alien race with far reaches into the galaxy. Some die-hard extremists still oppose alien rule on Earth, but Donovan Reyes isn't one of them. His dad holds the prestigious position of Prime Liaison...

In rural Ohio, friendships and a beautiful girl prove distracting to a fifteen-year-old who has hidden on Earth for ten years waiting to develop the Legacies, or powers, he will need to rejoin the other six surviving Garde members and fight the Mogadorians who destroyed their planet, Lorien. Friendships and a beautiful girl are distracting to a teenager who is hiding on Earth while he waits to develop the powers he will need to rejoin the other six...

Anthony and his younger sister discover that the monster figures he got in an unusual box at an estate sale are alive, but they have no way of knowing that the "monsters" will lead them on fantastical adventures to other worlds in an effort to try to save Earth.

After heroically saving his classmates, fifth-grader Sawyer's life as a dinosaur-human hybrid has gotten a lot easier until Sawyer, Sylvie, who is part Martian, and Elliot head to Mars in search of Sylvie's missing dad and discover that Mars is trying to kick Pluto out of the solar system.

Following the events of Avengers: Endgame, an unexpected tragedy forces a group of ancient aliens who have been living on Earth in secret for thousands of years out of the shadows to reunite against mankind's most ancient enemy, the Deviants.