Articles from Science News (January 20, 2007)

Title	Author	Type	Words
2006: hottest year in U.S. history.			211
A cosmic pas de trois: triple-quasar system may signal galaxy mergers.	Rowen, R.		504
Coming to a bad end: lost chromosome tips linked to heart problems.	Seppa, N.		485
Counterintuitive toxicity: increasingly, scientists are finding that they can't predict a poison's low-dose effects.	Raloff, Janet		2007
Death by Black Hole: And Other Cosmic quandaries.			156
Dreaming in Code: Two Dozen Programmers, Three Years, 4,732 Bugs, and One quest for Transcendent Software.			167
Exploratopia.			154
Fish killer caught? Ephemeral Pfiesteria compound surfaces.	Cunningham, A.		505
Gene variant shapes beta-blocker's effectiveness.			185
Going under down under: early people at fault in Australian extinctions.	Perkins, S.		445
Golden eggs: engineered hens lay drugs.	Brownlee, C.		526
Medical Apartheid: The Dark History of Medical Experimentation on Black Americans from Colonial Times to the Present.			165
Mercury pollution settles in hot spots.			164
Nanoparticles find tumors, form clumps.			212
Of penguins' range and climate change.		Brief article	286
Salmonella illnesses traced to pet rodents.			234
Saving whales the easy way? Less lobstering could mean fewer deaths.	Milius, S.		507
Saxons, Vikings, and Celts: The Genetic Roots of Britain and Ireland.			147
Sea tales.	Sink, John	Letter to the editor	185
Sorry, wrong number.	Trumbower, Heather	Letter to the editor	55
Starved for assistance: coercion finds a place in the treatment of two eating disorders.	Bower, B.		455
Way outside the box.	Shellman, Vern	Letter to the editor	74
Weighing in on city planning: could smart urban design keep people fit and trim?		Cover story	1950