Top news for December 21, 2008

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AIDS Creeps Back in Parts of Zambia, a Year After U.S. Cuts to H.I.V. Assistance

40 Years After the Meltdown, War Layers Another Disaster on Chernobyl

Webb Finds Water-Ice Clouds on Nearby Super-Jupiter

Fish oil may be hurting your brain, new study finds

Warming waters are supercharging an invasive salmon predator in Alaska

Aggressive “hulk” lizards are wiping out millions of years of evolution

Graphene kills harmful bacteria “superbugs” but spares human cells

Space Force faces surge in demand for heavy-lift launches

The Full ‘Flower Moon’ Is Coming — When To See It Rise On May Day

Targeted Hunts Were Supposed to Curb ‘Zombie Deer Disease.’ Now What?