Cuba has one of the world's highest COVID vaccination rates, with more than 85% of the nation fully immunized and kids as young as 2 getting inoculated. And it's done so using homegrown vaccines.
Science writer Florence Williams experienced what felt like a brain injury when her husband left her after more than 25 years. Her new book is Heartbreak: A Personal and Scientific Journey.
Song sparrows have a wide repertoire of tunes — and seem to be judicious about not repeating a certain song too often. Rather than sing the same playlist every time, they hit shuffle.
Microglia are amoeba-like cells that scour the brain for injuries and invaders. But sometimes the usually helpful cells go into overdrive and damage the brain, researchers say.
It's a sibling of the first omicron variant that swept the world. Is it more contagious? Does it cause severe disease? Will it keep current omicron surges going? Researchers are looking for answers.
A study finds tiny leaks from loose fittings added up to more emissions than when stoves were in use. The impact of U.S. gas stoves on climate change amounts to the same effect as a half-million cars.
Common chemical elements are created in stars like our sun. But heavy elements, like iron, are thought to form in massive stars that explode and spew material — though it might be more complicated.