CNN – World

By Laura Paddison, CNN Nearly 200 countries have agreed to a legally-binding “high seas treaty” to protect marine life in international waters, which cover around half of the planet’s surface, but have long been essentially lawless. The agreement was signed on Saturday evening after two weeks of negotiations at the United Nations headquarters in New

By Xiaofei Xu and Kareem El Damanhoury, CNN Several sub-Saharan countries, including Ivory Coast, Mali, Guinea and Gabon, are helping their citizens return from Tunisia following controversial remarks from the country’s president last month concerning illegal immigration into the North African country. In a meeting of Tunisia’s National Security Council on February 21, President Kais

By Ashley Strickland, CNN The human brain is unrivaled in its capacity to process information. Sure, we have days where our minds don’t feel as sharp. But the extraordinary 3-pound organ is still capable of things that supercomputers and robots can’t do. The human brain evolved to form billions of neurons, enabling us to learn

By Zoe Sottile, CNN After enlisting the public’s help to find Elvis Francois, a sailor who survived weeks lost at sea off of ketchup and seasonings, ketchup giant Heinz has finally tracked him down — and plans to gift him a new boat. On February 14, the company published a call for help on social

By Taylor Nicioli, CNN It’s not every day that effective fungus-killing compounds are discovered, so researchers in Germany knew their recent find needed a special name. Identifying and testing three natural compounds that proved lethal to fungi, they were so impressed they’ve named the chemicals after actor Keanu Reeves, a nod to how he eliminates

By Jackie Wattles, CNN A crew of astronauts aboard a SpaceX Crew Dragon capsule docked at the International Space Station, concluding a one-day trip to rendezvous with the orbiting laboratory after launching from Florida early Thursday. The capsule made first contact with the space station at 1:40 a.m. ET Friday and began opening the hatches

By Ashley Strickland, CNN A new telescope image has shed light on the ghostly remains of the first recorded supernova. More than 1,800 years ago, in the year 185, Chinese astronomers recorded what they called a “guest star” after a bright new light appeared in the night sky. This brightness resulted when a star exploded

By Ashley Strickland, CNN Computers powered by human brain cells may sound like science fiction, but a team of researchers in the United States believes such machines, part of a new field called “organoid intelligence,” could shape the future — and now they have a plan to get there. Organoids are lab-grown tissues that resemble

By Jackie Wattles, CNN Scientists are puzzling over a strange feeding technique that they think whales recently began using: The creatures swim to the surface of the ocean, open their mouths into a gaping yawn with their upper jaw sitting just below the water’s surface, and wait for hoards of fish to swim in. The

By Jackie Wattles, CNN SpaceX and NASA launched a fresh crew of astronauts on a mission to the International Space Station, kicking off a roughly six-month stay in space. The mission — which is carrying two NASA astronauts, a Russian cosmonaut and an astronaut from the United Arab Emirates — took off from NASA’s Kennedy

By Ashley Strickland, CNN When a NASA spacecraft intentionally crashed into an asteroid on September 26, the collision caused the space rock to release a cometlike tail. An array of telescopes, including the Hubble Space Telescope, were perfectly positioned to capture the DART, or Double Asteroid Redirection Test, mission and its aftermath, which continues to

By Katie Hunt and Ashley Strickland, CNN Jupiter and Venus will appear very close together in the night sky on Wednesday, with the two planets set to pass each other in what’s known as a conjunction. Jupiter will appear to shift westward, while a bright Venus will seem to move slowly in the other direction,