Top news for December 21, 2008

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Highlights From Suni Williams and Butch Wilmore’s Return to Earth

Trump Administration Dialing Back Support for H.I.V. Prevention

TikTok Misinformation Is Warping Young People's Understanding of ADHD

Mysterious Space Signals Went Unexplained for Years – Astronomers Just Found the Star System Behind Them

Hammerhead sharks’ diets may affect if they roam or stay home

Cambridge team uses powerful new MRI scans to enable life-changing surgery in first for adults with epilepsy - EurekAlert

Fresh Findings Strengthen the Case for Dark Energy's Evolution

Green recipe: Engineered yeast boosts D-lactic acid production - EurekAlert

Rice University's Beason-Abmayr honored with Arthur C. Guyton distinguished educator award - EurekAlert

Scientists Trick the Brain With a Fake Hand – And Pain Disappears