When people got reinfected with Covid-19, their odds of ending up in the hospital or dying were 90% lower than an initial Covid-19...
A spectacle of light will shine Thursday evening as the South Taurid meteors shoot across the sky.
Scientists are aiming little ray gun-like devices, called leaf clips, at plants in an attempt to better understand biodiversity...
The Delta variant of Covid-19 is dominating cases worldwide, and health officials in some countries are sounding alarm over its...
Astronomers have discovered the largest known comet, and it's about a thousand times more massive than others.
The founder of the multinational Hillsong Church told CNN that Covid-19 vaccines are a "personal decision for each individual...
Astronauts on the International Space Station are trying to spice up their diets.
It's easy to accept that the world is home to many species of dolphins, cats or bears -- but the idea that we once roamed the...
With more than 44 million people fully vaccinated against Covid-19 in the United States, many adults are hopeful that a more normal life is on the...
Whether we're texting or using tools, our hands -- perhaps more than any other body part -- are what equip us for modern life.