Argues that Russia's President is a man of many and complex identities, reflecting both ingrained Russian ways of thinking as well as his unique personal background and experience. Dispels potentially dangerous misconceptions about Putin and offers a clear-eyed look at his objectives.

Cosmic collisions have forever shaped the planets in our solar system, sculpting Earth and our Moon. They are still happening right in our neighborhood, as we saw in July 1994 when comet fragments bombarded the surface of Jupiter. What if a collision of that magnitude were to occur on Earth? Would the effect be anywhere near that of the collision that wiped out the dinosaurs 65 million years ago? Scientists have just begun to track distant asteroids...

"Many of America's greatest artists, scientists, inventors, educators, and entrepreneurs have come from abroad. Rather than suffering from the "brain drain" of talented and educated individuals emigrating, the United States has benefited greatly over the years from the "brain gain" of immigration. These gifted immigrants have engineered advances in energy, information technology, international commerce, sports, arts, and culture. To stay competitive,...

"Examines first years of the Obama presidency and effects on American foreign policy, including the U.S. relationships with China and Pakistan, war in Afghanistan and withdrawal from Iraq, movement toward Middle East peace, response to the Arab Spring, agendas involving energy, climate, and weak states, and approaches to rogue states"--Provided by publisher. "How well has Barack Obama carried out his duties as U.S. commander-in-chief, top diplomat,...

An account of the Boston Massacre describing how it resulted from the Boston Tea Party, and how it contributed to the Revolutionary War.

Examines the education, research, and personal life of the renowned British theoretical physicist who has taken the study of cosmology farther than most in his field, despite his need for wheelchair and computer in order to travel and communicate.

Discusses the social and religious climate that led to the Salem witch hunts and describes the trials and their aftermath.