Introduces black holes, describing their physical features, how they were discovered, what causes them, and where they exist in space.

Teenagers with super powers must try to stop a villain who has travelled from the past in order to irreversibly alter reality.

The Parthenon. Chichen Itza. The Pyramids. Their scale, complexity, and sheer beauty stand as permanent reminders of the indomitable strength and ingenuity of the human spirit.

The fate of the world hangs in the balance when one of the new superhumans turns her ability to read minds against the rest of the group.

"Scientifically-accurate illustrations and information-packed sidebars enrich this fascinating tale, the third in this acclaimed series about diversity and space exploration. Set in the future, Max the Dog’s friend Tori is all grown up and is the chief scientist of the Jupiter Mission. In order to reach their spacecraft, Max and his crew must take an amazing ride on a new device called the Space Elevator. Once they’ve probed the planet’s atmosphere,...

Examines the investigation and arrest of hedge fund manager and former NASDAQ chairman Bernard Madoff, whose massive swindle reverberated across the world financial stage.

Max the dog is chosen to visit the international space station, where he becomes a valuable member of the crew.

After being hunted to the brink of extinction in the U.S., the majestic misunderstood wolf is attempting the comeback of the century in North America's beloved Yellowstone National Park. Witness the unfolding saga of hardships and affection, losses and triumphs, and the controversy surrounding the decision to reintroduce these wolves back into the heart of the West.

Follows a controversial experiment to bring the ultimate predator back into the heart of the West. Shows how one group of wolves, the Druid Peak pack, is reintegrated within the parameters of Yellowstone, the oldest national park in the United States, in 1995. Follows biologists who relocated the wolf pack and monitored the wolves' trials and successes as they adapted to their new home. Examines the conflict between ranchers and environmentalists...