Top news for 2022-07-20

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25 Best Dog Food for Older Dogs in 2022

These Dinosaurs Had a Complicated Air Conditioner in Their Skull

Mammal ancestors’ shrinking inner ears may reveal when warm-bloodedness arose

Cosmic crime scene reveals how black holes turn stars into 'spaghetti'

To search for alien life, astronomers will look for clues in the atmospheres of distant planets – and the James Webb Space Telescope just proved it's possible to do so

No evidence that depression is caused by low serotonin levels, finds comprehensive review

F.D.A. Seeks Outside Review of Troubled Food and Tobacco Units

Risk of Dangerous Heat Exposure Is Growing Quickly in Cities

24 Best Arthritis Supplements for Dogs

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