A new coronavirus variant — known as delta plus — has cropped up in the U.K. There's concern it could be more dangerous than the highly contagious delta variant. What does the science actually show?
It has long been known that the Vikings arrived in the Americas sometime before Christopher Columbus. Now, a new article in the journal Nature concludes the exact year was 1021.
A family in Houston and a plumber in Maryland couldn't afford rent, which pushed them into crowded living quarters. During the COVID-19 pandemic, that common predicament has increased viral spread.
A Lancet medical journal report finds that human-caused climate change is worsening human health in just about every measurable way. It calls for more urgent action from world leaders.
Researchers have hardened wood and fashioned a knife out of it. It's three times sharper than steel and can slice through steak, and could be a sustainable alternative.
The White House says the U.S. has enough doses for the country's 28 million kids age 5 to 11 and has laid out a plan to get them inoculated as soon as the vaccine is authorized for the age group.
The primatologist says it's crucial that young people know how positive action can still shift the frightening trajectories of climate crisis, biodiversity loss, and the ongoing global pandemic.