"From science fiction visionary Annalee Newitz comes The Terraformers, a sweeping, uplifting, and illuminating exploration of the future. 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...

"Have you ever worried about your memory, because it doesn't seem to recall exactly the same past from one day to the next? Have you ever thought that the whole universe might be a crazy, mixed-up dream? If you have, then you've had hints of the Change War. It's been going on for a billion years and it will last another billion or so. Up and down the timeline, the two sides--"Spiders" and "Snakes"--Battle endlessly to change the future and the past....

"A locked-room murder mystery set at a hotel for time travelers--in which a detective must solve an impossible crime before her own grip on reality crumbles--from the author of The Warehouse On any ordinary day, the Fairbanks--affectionately known to its staff as the Paradox Hotel--is packed with ultra-rich tourists dressed for a dozen different time periods, all anxiously waiting to catch their "flights" to the past. And as if that weren't strange...

Introduces the development of submarine and ship technology, from the dawn of civilization to the present, including Egyptian plank boats, ocean liners, and sports boats. Water has been one of the main means of travel, transport, and trade throughout history. The ancient Greeks used boats for trade and for war. Ships have carried merchants and immigrants from one port to another. Even today, most products destined for sale overseas are transported...

This series of lectures is a nontechnical description of the main concepts, methods, and discoveries in astronomy--in depth--from the constellations drawn by the ancients, to the latest reports from planetary probes in our Solar System. All of the material is integrated so that one topic builds on another to develop the conceptual tools that allow exploration of the Universe. The Solar System leads naturally to the investigation of planets around...

The complete second season of the sci-fi drama about a space station in deep space.

"Time shatters into shards of the past, present, and future. A group of survivors dodges threats from across history to locate the source and repair the damage before it's too late. It's called the Event. An unimaginable cataclysm in the 23rd century shatters 600 years of the Earth's timeline into jumbled fragments. Our world is gone: instantly replaced by a new one made of shattered remnants of the past, present and future, all existing alongside...

"The world is still recovering from the most recent global recession associated with the 2008-09 financial crisis and the possibility of another downturn persists as the global economy struggles to regain lost ground. But, what is a global recession? What is a global recovery? What really happens during these episodes? As the debates about the global recession and the subsequent recovery have clearly shown, our understanding of these questions has...

"Iran's 1979 revolution is one of the most important events of the late twentieth century. The overthrow of the Western-leaning Shah and the emergence of a unique religious government reshaped Iran by dramatically shifting the balance of power in the Middle East and creating serious challenges to the global geopolitical order-challenges that continue to this day. The seizure of the U.S. Embassy in Tehran later that same year and the ensuing hostage...