Good News for Aging Eyes
Debilitating eyesight problems are on the decline for older Americans
Dramatic Change Spotted on a Faraway Planet
Astronomer Alain Lecavelier des Etangs (CNRS-UPMC, France) and his team used Hubble to observe the atmosphere of exoplanet HD 189733b during two periods in early 2010 and late 2011, as it was silhouetted against its parent star.
Healthcare Insurance Mandate Upheld in Supreme Court
Congress has the authority to enforce the individual mandate in the Affordable Healthcare Act according to the Supreme Court.
Dinosaurs Were Warm-Blooded Reptiles
The journal Nature has published a study analysing the lines of arrested growth (LAG) in the bones of around a hundred ruminants, representative of the specific and ecological diversity of that group of mammals.