New York City Declares End to Largest Measles Outbreak in 30 Years

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Stunning New Pics Capture The Incredible Moment a Spacecraft Struck an AsteroidShimmering 'Lakes' Under The South Pole of Mars Might Be Something Else EntirelyBehold, The Epic Last Images Taken by NASA's Asteroid Redirection Test Spacecraft

A NASA Spacecraft Is About to Collide With an Asteroid. Watch Live HereLook Up! Jupiter Will Come The Closest to Earth in 59 Years This Monday

A Stunning New 3D Model of The Cat's Eye Nebula May Help Us Solve Its Mysteries

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Why Do Breastfed Babies Have Healthier Immune Systems? There's a New ExplanationLandmark Study Identifies The Neurons Especially Vulnerable to Alzheimer's Disease

Fact Check: What We Do And Don't Know About The Pfizer Vaccine Deaths in NorwayThe UK Coronavirus Strain May Be Dominant in The US by March, CDC Says