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By Laura Paddison, CNN (CNN) — Is the world getting hotter, faster? It’s a big question which has been puzzling and dividing scientists for years. A new paper says it has the answer, and it’s not good news. Global warming has accelerated “significantly” over the past 10 years, meaning the world may barrel through crucial

By Asuka Koda, CNN (CNN) — Scientists have captured the most complete, high-resolution map of the cold gas at the center of the Milky Way, which contains the raw material from which stars and planets are made. Information from the image could help astronomers understand the origin of our solar system. The image is the

By Ashley Strickland, CNN (CNN) — Scientists are one step closer to understanding the origins of complex life on Earth after shedding new light on a mystery about our microbial ancestors. The key, they suspect, may lie in how simple microbes that lived billions of years ago adapted to the presence of oxygen. Humans, like

By Laura Paddison, CNN (CNN) — Sea levels along the world’s coastlines are much higher than previously assumed, more than 3 feet in some regions, according to new research, raising alarms that the world is underestimating the extent of the threat and how quickly coastlines could disappear. Sea level rise is one of the most

By Jacopo Prisco, CNN (CNN) — Astronomers have spotted a galaxy so faint, it’s almost invisible — a discovery that could help illuminate one of the most elusive substances in the universe. The researchers found Candidate Dark Galaxy-2, or CDG-2, using the Hubble Space Telescope, and they believe it’s made of at least 99.9% dark

By Lily Hautau, CNN (CNN) — A total lunar eclipse is turning the moon a deep reddish-orange on Tuesday for sky-gazers in Asia, Australia, the Pacific Islands and the Americas. This event, often referred to as a blood moon, occurs when Earth moves directly between the sun and the moon, casting a shadow on the

By Jackie Wattles, CNN (CNN) — NASA on Friday announced an abrupt change to its pathway to getting astronauts back on the lunar surface, opting to add in an additional crewed test flight before attempting to land. Space agency officials said that “Artemis III” — the mission name that had previously been used to refer

By Lily Hautau, CNN (CNN) — Sky-gazers will have the opportunity to see six planets in the sky on Saturday, weather permitting, according to NASA. This planetary parade occurs due to the alignment of the planets’ orbits around the sun, said Heidi Haviland, a planetary scientist at NASA’s Marshall Space Flight Center in Huntsville, Alabama.

By Katie Hunt, CNN (CNN) — The 2010 discovery that early humans and Neanderthals once encountered one another and had babies was a scientific bombshell that electrified the field of human origins. Now, geneticists at the University of Pennsylvania say they have a better understanding of the nature of those prehistoric hookups, suggesting the trysts

By Jackie Wattles, CNN (CNN) — Veteran NASA astronaut Mike Fincke has confirmed that he was the crew member who had a concerning “medical event” that led to an early exit from the International Space Station last month. Fincke and his fellow crewmates — NASA astronaut Zena Cardman, Kimiya Yui of the Japan Aerospace Exploration

By Jackie Wattles, CNN (CNN) — Efforts to get NASA’s historic moon mission off the ground have stalled once again, as engineers navigate a new issue with the rocket set to propel four astronauts on an unprecedented path. The agency announced Saturday that it had detected a problem with flow of helium, a gas that’s

By Jacopo Prisco, CNN (CNN) — Saturn’s largest moon, Titan, is one of the solar system’s oddities. Now, researchers have unlocked key insights about this mysterious moon, including how it came to be. The answer may also shed light on the origin of Saturn’s beautiful rings. Shrouded in a thick haze, Titan is about half

By Taylor Nicioli, CNN (CNN) — When scientists with the National Center for Wildlife in Saudi Arabia were surveying caves in search of wildlife in 2022 and 2023, they came across something unexpected: seven naturally mummified cheetahs in five caves near the northern city of Arar. The remains were largely intact with well-preserved soft tissue

By Jackie Wattles, CNN (CNN) — The botched test flight of Boeing’s Starliner spacecraft — a protracted saga that kept two astronauts in space months longer than expected — was a debacle in league with US space shuttle disasters that cost crew members their lives, according to newly revealed findings from a NASA investigation about