A Telegraph Best Science Book of the Year "A witty yet in-depth exploration of the prospects for human habitation beyond Earth...Spacefarers is accessible, authoritative, and in the end, inspiring." -Richard Panek, author of The Trouble with Gravity It's been over fifty years since Apollo 11 landed on the moon. So why is there so little human presence in space? Will we ever reach Mars? And what will it take to become a multiplanet species? While many books have speculated on the possibility of living beyond the Earth, few have delved into the practical challenges. A wry and compelling take on the who, how, and why of near-future colonies in space, Spacefarers introduces us to the engineers, scientists, planners, dreamers, and entrepreneurs who are striving right now to make life in space a reality. While private companies such as SpaceX are taking the lead and earning profits from human space activity, Christopher Wanjek is convinced this is only the beginning. From bone-whittling microgravity to eye-popping profits, the risks and rewards of space settlement have never been so close at hand. He predicts we will have hotels in low-earth orbit, mining and tourism on the Moon, and science bases on Mars-possibly followed (gravity permitting) by full blown settlements. "Nerdily engaging (and often funny)...Technology and science fiction enthusiasts will find much here to delight them, as Wanjek goes into rich detail on rocketry and propulsion methods, including skyhooks and railguns to fling things into orbit...He is a sensible skeptic, yet also convinced that, in the long run, our destiny is among the stars." -The Guardian "If the events of this year have had you daydreaming about abandoning the planet entirely, [Spacefarers] is a geekily pleasurable survey of the practicalities and challenges." -The Telegraph "The best book I've read on space exploration since Isaac Asimov." -Michael Shermer, publisher of Skeptic

"Christopher Wanjek uses a take-no-prisoners approach in debunking the outrageous nonsense being heaped on a gullible public in the name of science and medicine. Wanjek writes with clarity, humor, and humanity, and simultaneously informs and entertains."
–Dr. Michael Shermer, Publisher, Skeptic magazine; monthly columnist,
Scientific American; author of Why People Believe Weird Things

Prehistoric humans believed cedar ashes and incantations could cure a head injury. Ancient Egyptians believed the heart was the center of thought, the liver produced blood, and the brain cooled the body. The ancient Greek physician Hippocrates was a big fan of bloodletting. Today, we are still plagued by countless medical myths and misconceptions. Bad Medicine sets the record straight by debunking widely held yet incorrect notions of how the body works, from cold cures to vaccination fears.

Clear, accessible, and highly entertaining, Bad Medicine dispels such medical convictions as:

• You only use 10% of your brain: CAT, PET, and MRI scans all prove that there are no inactive regions of the brain . . . not even during sleep.
• Sitting too close to the TV causes nearsightedness: Your mother was wrong. Most likely, an already nearsighted child sits close to see better.
• Eating junk food will make your face break out: Acne is caused by dead skin cells, hormones, and bacteria, not from a pizza with everything on it.
• If you don’t dress warmly, you’ll catch a cold: Cold viruses are the true and only cause of colds.

Protect yourself and the ones you love from bad medicine–the brain you save may be your own.

We are embarking upon a cosmic journey. From the safety of our home planet Earth, scientists plan to explore the very limits of the known Universe. Our travels will take us to where space and time cease to exist as we know them, and to where the secrets of the past and future lie captured in the starlight of the present across an expanse of billions of light-years. Cosmic Journeys, a new series of NASA space science missions, will take us to the limits of gravity, space, and time. This virtual journey will use the power of resolution far greater than what current telescopes can muster to transport us to the rim of a black hole, to eagle-eye views of the galaxies and voids that pervade the Universe, and to the earliest moments of time, just fractions of a second after the Big Bang. The goal of our Cosmic Journeys is to solve the mystery of gravity, a force that is all around us but cannot be seen.