Live Science

What's Hot This Week Vaccine Deniers and the Fear Behind 'Contagion' by Benjamin Radford, LiveScience Contributor As "Contagion" hits the big screens this weekend, moviegoers may be left in suspense, while scientists and health officials only get a glimpse of what they've been dealing with for years: the struggle to combat not only diseases but the spread of myths veiled as facts from anti-vaccine advocates. The results can be deadly. Closest Human Ancestor May Rewrite Steps in Our Evolution by Charles Q. Choi, LiveScience Contributor A startling mix of human and primitive traits found in the brains, hips, feet and hands of an extinct species identified last year make a strong case for it being the immediate ancestor to the human lineage, scientists have announced. Sponsored by: Glow-in-the-Dark Kittens Lend a Paw to AIDS Fight After Death: 8 Burial Alternatives That Are Going Mainstream 'Old Faithful' Sunspot Keeps Spouting Off Big Solar Flares Fast-Moving Cartoons Can Cloud Kids' Concentration Best Science Photos of the Week - Sept. 10, 2011