Experimental COVID-19 Vaccine Shows Positive Early Results in Human Trial

Planes Don't Make 'Chemtrails', But They Can Create Something Else in Their Wake4 Years Ago, This Stunning Island Didn't Exist. Now, It's Teeming With Life

Here's How Extreme Cold Can Create Freaky Thundersnow And 'Smoking' OceansWe Might Have Been Wrong About Ocean Circulation, And It Will Have Big Impacts5 Heartbreaking Maps Reveal How Shockingly Little Wilderness Remains on Earth

It's So Cold, Chicago Appears to Be Experiencing 'Frost Quakes'Lake Michigan Is a Surreal Frozen World Right Now

Scientists Have Detected an Enormous Cavity Growing Beneath Antarctica

A Life-Threatening 'Snow Squall' Just Hit The US East Coast – Here's What That MeansUS Has Recorded Another Million COVID-19 Cases in Just Two Weeks

This New Prototype N95 Mask Designed by Harvard And MIT Is Reusable And HygienicExperts Provide Tips on How to Wear a Mask Without Fogging Glasses or Short Breath

New Blood Test Detects 5 Types of Cancer Years Before Standard DiagnosisHere's What You Need to Know About That COVID-19 Vaccine in The News