Top news for December 21, 2008

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The Brave New World of A.I.-Powered Self-Harm Alerts

Here’s How Much Cleaner Energy Could Save America, in Lives and Money

As Teenagers, They Protested Trump’s Climate Policy. Now What?

Reading Shapes Your Brain – Here's What Happens When We Stop

Hidden Organic Reservoirs Found on Ceres, Igniting Hopes for Alien Life

A Physicist Explains How to Imagine The Universe's Mind-Bending Expansion

Google's New Chip Could Crack One of Quantum Computing's Biggest Problems

'Dark Comets' Come in Different Varieties, And It Could Have Implications For Life on Earth

Scientists Crack the Blood-Brain Barrier, Paving Way for New Alzheimer’s Treatments

How Space Reveals the Hidden Brilliance of Southern Africa