In the Dec. 10 SN: Star-starved galaxies, animal math, Parkinson’s roots in the gut, supersolid success, Celebrex’s controversial heart risk, a prionlike memory protein, yo-yo dieting’s downside, blue begonias and more.
WATCH WHAT YOU EAT Peanuts, eggs and other foods can cause allergic reactions in people, but the public and medical community are confused when it comes to preventing, diagnosing and treating such allergies, says a new report.
ARM STRONG Relatively long, robustly built upper arms let Lucy, the famous 3.2-million-year-old hominid, spend a lot of time in trees, scientists say. Scans of Lucy’s fossils also suggest she walked less efficiently than people today do.
J. Kappelman/Univ. of Texas at Austin
SHINING STARS In the late 1890s, Harvard observatory hired women as “computers” to document data captured on glass plate images of the night sky. Their observations and ideas, described in a new book, led to such advances in astronomy as how to measure the distance to stars.