Top news for December 21, 2008

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Researchers complete first comprehensive threat assessment of all U.S. trees

Can walking lower blood pressure?

Electric Brain Stimulation Experiment Boosts Memory in Older Adults

As NASA nears return to the moon with Artemis program, lunar scientists' excitement reaches fever pitch

Document supposedly written by Galileo is a fake

Astronomers solve the case of missing carbon monoxide in protoplanetary disks

Risk of premature death in adulthood influenced by patterns of early childhood adversity

NASA Invites Media to Witness World’s First Planetary Defense Test

Best humidifiers 2022: Relieve dry skin & allergy symptoms

On This Day In Space: Nov. 18, 2013: NASA launches MAVEN orbiter to Mars