US & World

By Heather Chen, Hira Humayun, Mariya Knight, Andrew Carey, Radina Gigova and Maria Kostenko, CNN Russia plans to station tactical nuclear weapons in…

By Ashley Strickland, CNN The idea of time travel has always fascinated me. Since I was a kid, I’ve imagined a “Jetsons”-like…

By Jackie Wattles, CNN Deadly spores lurk in the water and infect the skin of the creatures they touch. Spreading on contact and then invading the…

By Amy Woodyatt, CNN On hearing the words “city killer” and “asteroid” in the same sentence, you’d be forgiven for…

By Ashley Strickland, CNN In 2017, ‘Oumuamua became the first observed interstellar object to zip through our solar system, and its appearance…

By Jackie Wattles, CNN For centuries, a setting sun has signaled the end of fasting rituals on holidays such as Ramadan and Yom Kippur, a cue to tuck…

By Katie Hunt, CNN NASA’s James Webb Space Telescope has detected churning clouds of dust on a distant planet that orbits two stars. Known as…

By Kristen Rogers, CNN A new and large species of spider has been found living in Queensland, Australia, and researchers say it’s in need of…

By Ashley Strickland, CNN Organic molecules have been detected in samples collected by Japan’s Hayabusa2 mission from the near-Earth asteroid…

By Ashley Strickland, CNN An unusual animal with canine teeth similar to those of a saber-toothed cat and the wide-set eyes of a cow lived in South…

By Jackie Wattles, CNN Video by Channon Hodge, CNN Researchers have been pushing the limits of 3D printing for decades, using the manufacturing…