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.
A WORLD NEXT DOOR Proxima Centauri casts a reddish glow over the surface of Proxima b (illustrated), the closest exoplanet to Earth, while two companion stars, Alpha Centauri A and B, appear as bright pinpricks of light.
QUITE A CACHE Four tiny rocky worlds snuggled up to a cool star (illustrated) are a small sample from the Kepler telescope’s latest haul of exoplanets.
STAR SPIN Rapidly twirling stars such as Altair (shown; interferometer image, left) have an equatorial bulge that makes them emit more light from their poles than their equator, which could create strange seasons on any orbiting planets.
From left: Zina Deretsky/National Science Foundation; Steve Golden/Caltech/JPL/NASA