Climber who died after 1,000-foot fall on Alaska peak identified as "passionate" New York forest ranger Robbi Mecus

4 Years Ago, This Stunning Island Didn't Exist. Now, It's Teeming With Life

The CDC Just Released More Information on Who Is Most at Risk From COVID-19Study of Over 1 Million People Finds Intriguing Link Between Iron Levels And Lifespan

The Best And Worst Face Masks For COVID-19, Ranked by Their Level of ProtectionYour Blood Type May Affect COVID-19 Risk, But It's No Kind of Protection, Experts SayCOVID-19 Vaccine Front-Runner To Enter Final Stage As Positive Results Get Published

For The First Time, Scientists Have Completely Sequenced a Human ChromosomeHere's How Scientists Know Coronavirus Wasn't Made in a Lab

Heart Abnormalities Found in COVID-19 Patients Mean Scans Are Vital, Scientists Say

One in Three Young Adults at Risk of Severe Coronavirus Infections, Study FindsBumblebees Are in Trouble, as Rising Temperatures Drive Their Decline

Scientists Warn Multiple Overlapping Crises Could Trigger 'Global Systemic Collapse'2020 Has Barely Started And We've Already Broken Another Global Heat Record

Sea Levels Around The US Aren't Just Rising, They're Accelerating Year on YearRapid Permafrost Collapse Is Underway, Disintegrating Landscapes And Our Predictions