San Antonio College Library

It's only a matter of time before a cosmic disaster spells the end of the Earth. But how concerned should we about about any of these catastrophic scenarios? And if they do post a danger, can anything be done to stop them?

In this program, scientific experts analyze the threat of a giant space rock wiping out civilization and share their proposals on how to prevent such an Armageddon.

Planet Earth is middle-aged. Science has worked hard to piece together the story of the evolution of our world up to this point, but only recently have we developed the understanding and the tools to describe the entire life cycle of a planet. Ward and Brownlee, a geologist and an astronomer respectively, combine their knowledge of how the critical sustaining systems of our planet evolve through time with their understanding of the life cycles of...

The universe as we know it will eventually die. This program theorizes on the end of space, matter, and even time as it outlines the harsh and hostile possibilities of the far distant future.

The Internet, bookshelves, and movie theaters are full of prophecies, theories, and predictions that December 21, 2012, marks the end of the world. Award-winning astronomer and Mayan researcher Aveni explores these theories, explains their origins, and measures them objectively against evidence unearthed by Maya archaeologists, iconographers, and epigraphers.

Nuclear war, holes in the ozone layer, disease, genetic engineering, asteroids and supernovas - any of these may bring human history to an end. But are we in imminent danger of extinction? John Leslie assesses the risks facing the human race and concludes: yes, we probably are. Leslie pays particular attention to the 'doomsday argument'. This argument, arising from the undeniable fact that we are a very young species, substantially increases the likelihood...