The Chaotic Birth Of Planets Scientific American Magazine 052008 1st Edition John Rennie by John Rennie instant download after payment.

50  The Genesis of Planets - Douglas N. C. Lin
Theorists long imagined that the formation of young solar systems was a serene process with a stately progression, in which the eventual appearance of planets was a foregone conclusion. The latest evidence, however—including observations of worlds circling other stars—argues that planet formation is startlingly chaotic.
60 Regulating Evolution - Sean B. Carroll, Benjamin Prud’homme and Nicolas Gompel
Most animals share similar genes. The staggering diversity in their physical forms springs from switches in the DNA that govern where and when those genes are active.
68 Science 2.0 - M. Mitchell Waldrop
Is posting raw experimental data online, for all to see, a great tool or a great risk?
74 How Cells Clean House - Vojo Deretic and Daniel J. Klionsky
Autophagy, a process that normally keeps cells in good working order, seems to be linked to aging and diseases such as Alzheimer’s.
82 Hooked from the First Cigarette - Joseph R. DiFranza
Cigarette addiction can arise astonishingly fast. New research could help make quitting easier.
88 Rethinking Nuclear Fuel Recycling - Frank N. von Hippel
Plans are afoot to reuse spent reactor fuel in the U.S. But the advantages of the scheme pale in comparison with its dangers.
94 Fighting Killer Worms - Patrick Skelly
Bloodsucking worms called schistosomes are among the world’s most worrisome human parasites. A new genome sequence and powerful genetic tools promise to help crack their secrets.