ATOM & COSMOS
Reflected heat may explain the strange slowdown of two spacecraft. Read “Pioneer puzzle pinned on thermodynamics.”
DELETED SCENES BLOG
After 30 years, the space shuttle fleet comes to rest. See “NASA picks shuttles’ retirement homes” to find out where.
BODY & BRAIN
Fat breakdown by friendly bacteria may lead to unfriendly buildup in the arteries. Read “Gut microbes may foster heart disease.”
Gene variants may make some kids more sensitive to good and bad parenting. See “Genetic roots of ‘orchid’ children.”