Top news for December 21, 2008

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A Simple Eye Test May Identify Risk of Alzheimer’s in Middle Age

The Biggest Galaxy Ever Found Has Just Been Discovered, And It Will Break Your Brain

Memory formation influenced by how brain networks develop during youth

9 Best CBD Oils for Insomnia

'Killer' Cretaceous croc devoured a dinosaur as its last meal

On this day in space! Oct. 14, 1947: Chuck Yeager smashes the sound barrier.

DSLR vs Mirrorless cameras for Astrophotography

How to photograph the Milky Way: A guide for beginners and enthusiasts

Star Wars movies ranked, worst to best

Sigal Barsade, 56, Dies; Argued That It’s OK to Show Emotions at Work