"A deep-dive exploration into the many theories and discoveries surrounding the possibility of extraterrestrial life beyond Earth"-- Provided by publisher.

"For thousands of years, humans have wondered whether we're alone in the cosmos. Now, for the first time, we have the technology to investigate. As founding director of Cornell University's Carl Sagan Institute, astrophysicist Lisa Kaltenegger has built a team of tenacious scientists from many disciplines to create a specialized toolkit to find life on faraway worlds. In Alien Earths, she demonstrates how we can use our homeworld as a Rosetta Stone,...

"Since Newton witnessed a bubble rising from his bathtub, mankind has sought the stars. When William III of England commissioned Capt. William Kidd to command the first expedition to Mars in the late 1600s, he proved that space travel was both possible and profitable. Now, one century later, a plantation in a flourishing British colony on Mars is home to Arabella Ashby, a young woman who is perfectly content growing up in the untamed frontier. But...

Ben Bova continues his hard SF Star Quest series which began with Death Wave and Apes and Angels. In Surivival, a human team sent to scout a few hundred lightyears in front of the death wave encounters a civilization far in advance of our own, a civilization of machine intelligences. These sentient, intelligent machines have existed for eons, and have survived earlier “death waves,” gamma ray bursts from the core of the galaxy. They are totally...

Set in 2082, Peter Watts' Blindsight is fast-moving hard SF that pulls readers into a futuristic world where a mind-bending alien encounter is about to unfold. After the Firefall, all eyes are locked heavenward as a team of specialists aboard the self-piloted spaceship Theseus hurtles outbound to intercept an unknown intelligence.

"Kim Stanley Robinson is a New York Times bestseller and winner of the Hugo, Nebula, and Locus awards. He is the author of more than twenty books, including the bestselling Mars trilogy and the critically acclaimed Forty Signs of Rain, The Years of Rice and Salt and 2312. In 2008, he was named a "Hero of the Environment" by Time magazine, and he works with the Sierra Nevada Research Institute. He lives in Davis, California"-- Provided by publisher. "It...

Ellen May Ngewthu is a soldier and leader of the Cassini Division, the elite defense force of the utopian Solar Union. Here in the twenty-fourth century, the forts of the Division, in orbit around Jupiter, are the front line in humanity's long standoff with the unknowable post-humans: godlike beings descended from the men and women who transformed themselves with high technology centuries ago. The post-humans' capacities are unknown...but we know...

“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...

The Quest To Discover Life Beyond Earth. The surprisingly long history of debate over extraterrestrial life is full of marvelous visions of what life "out there" might be like, as well as remarkable stories of alleged sightings and heated disputes about the probability that life might actually have arisen more than once. In Planetary Dreams, acclaimed author Robert Shapiro explores this rich history of dreams and debates in search of the best current...

At last, the costly and bitter war between the two Foundations had come to an end. The scientists of the First Foundation had proved victorious and now they return to Hari Seldon''s long-established plan to build a new Empire. The two exiled citizens of the Foundation-- a renegade Councilman and the doddering historian-- set out in search of the mythical planet Earth, and proof that the Second Foundation still exists. Meanwhile someone-or something-outside...