CNN – World

By Angela Dewan, CNN A crucial system of currents in the Atlantic Ocean that helps control temperatures in the Northern Hemisphere and has implications for the entire planet’s weather systems is showing signs of instability due to human-made climate change, scientists say. Its collapse would have dire consequences for our weather and life on Earth.

By Amy Wray, CNN Good Samaritans save a stranded orca, a woman fights off a coyote with a stick and Prince Harry surprises Meghan for her birthday. These are the must-watch videos of the week. Free Willy! National Oceanic and Atmospheric Administration (NOAA) officials and a few good Samaritans stepped in to free an orca

By Joshua Berlinger, Aditi Sangal, Ben Morse, Ben Church and Adam Renton, CNN The-CNN-Wire™ & © 2021 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.

By Katie Hunt, CNN Found frozen deep in the Siberian Arctic, the cave lion cub looks like she’s asleep and one touch might awaken her. The cub’s golden fur is matted with mud but otherwise undamaged. Her teeth, skin, soft tissue and organs are mummified but all intact. Some 28,000 years since she last closed

By Ashley Strickland, CNN In the quest to understand Mars, two robots are better than one — especially when they work together. While the Perseverance rover prepares to collect its first Martian sample, the Ingenuity helicopter is flying overhead to scout the terrain and take photos. “Ingenuity is allowing the Perseverance science team to be

By Ashley Strickland, CNN An array of planets with similarities to some in our solar system have been found around a nearby star by astronomers using the European Southern Observatory’s Very Large Telescope in Chile. The star, known as L 98-59, is 35 light-years away from Earth. There may be as many as five planets

By Joshua Berlinger, Aditi Sangal and Adam Renton, CNN The-CNN-Wire™ & © 2021 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.

By Ashley Strickland, CNN A galactic sibling rivalry is taking place millions of light-years away, and the Hubble Space Telescope has captured it in a stunning image. About 747 million light-years from Earth, a triplet of galaxies is locked in a gravitational tug-of-war that was spied by Hubble as it observed them interacting in the

By Tara John, CNN A growing number of countries are turning to booster vaccine shots as the world grapples with the Delta variant and data on the potential for waning immunity. On Tuesday, the United Arab Emirates joined Germany, Israel and the United Kingdom in recommending third shots for the elderly. Israel announced its booster program

By Joshua Berlinger, Aditi Sangal and Adam Renton, CNN The-CNN-Wire™ & © 2021 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.