Gaza aid bans, Yemen drawdown and China-Taiwan tensions highlight a volatile geopolitical landscape.
A CIA strike abroad, halted deportations, brutal cold and a toxic derailment add to a day of national unease.
Year-end markets show soaring equities, weak oil, persistent inflation worries and political and Chinese moves reshaping investment themes.
NIH revisits politically frozen grants as a major study questions whether open science has yet proven its promised gains.
Physicians warn that surging off-label ivermectin use risks harm and undermines confidence in evidence-based care.
Big names shift and shine as the Cowboys cut Diggs, Arsenal thrash Villa, United falter again and Carlsen extends his blitz dominance.
Researchers use pine needles as low-cost sensors to map how toxic PFAS pollutants spread through the environment.