Live Science

What's Hot This Week Site News: New Commenting Functionality LiveScience Editors LiveScience to change its article commenting functionality Monday, Oct. 31. Best Science Photos of the Week - Oct. 29, 2011 LiveScience Staff Python hearts, Pluto's twin and whales on vacation. Check out our favorite science photos of the week. Sponsored by: Sticking it to the Mann: Climate Science Sparks Protest Spirituality Helps Chronically Ill Men and Women Differently