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.
New telescopes and spacecraft will soon help researchers scour our galaxy for signs of extraterrestrial life. But what might aliens look like? And if they do exist, why haven’t they returned our calls? These are just some of the questions addressed in the Science News special report “In Search of Aliens” (SN: 4/30/16, p. 24).