News
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ClimateRate of atmospheric carbon dioxide rise unprecedented
The current rate of carbon dioxide entering the atmosphere is unprecedented over at least the last 66 million years, new research shows.
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Planetary ScienceOrigin date established for Mercury’s magnetic field
A 3.8-billion-year-old magnetic field on Mercury provides clues as to how the once volcanically active planet evolved.
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Health & MedicineKids who have had measles are at higher risk of fatal infections
Measles infection leaves kids vulnerable to other infectious diseases for much longer than scientists suspected.
By Meghan Rosen -
PsychologyOn Facebook, you control the slant of the news you choose
Facebook users shield themselves from opposing political ideas more than the site does.