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By Ashley Strickland, CNN (CNN) — The story of how humans evolved is a long and winding one — and it grows more complicated with each passing year. Discoveries in the past two decades have added new branches to the human family tree, including species such as the hobbit-like Homo floresiensis and the powerfully built

By Rachel Ramirez, CNN (CNN) — Just hours after his swearing-in this week, as a raft of executive orders was presented and signed at the Resolute Desk in the Oval Office, President Donald Trump authorized action to end “radical and wasteful government DEI programs and preferencing.” Employees in federal positions overseeing Diversity, Equity and Inclusion

By Ashley Strickland, CNN (CNN) — Thousands of mysterious mounds on Mars preserve layers of evidence pointing to ancient water on the red planet that likely sculpted the towering formations. More than 15,000 mounds jut skyward from the lowlands of Mars’ Chryse Planitia, located near a natural dividing line between the planet’s southern and northern

By Ella Nilsen, CNN (CNN) — Even before the Los Angeles fires, the Federal Emergency Management Agency was under assault on all fronts. Increasingly frequent weather disasters have strained its workforce and drained its Congress-funded coffers. And, since the first Trump administration, the agency has had further strain from bankrolling Covid recovery and paying states

CNN By Ella Nilsen, CNN (CNN) — Even before the Los Angeles fires, the Federal Emergency Management Agency was under assault on all fronts. Increasingly frequent weather disasters have strained its workforce and drained its Congress-funded coffers. And, since the first Trump administration, the agency has had further strain from bankrolling Covid recovery and paying

By Ella Nilsen, CNN (CNN) — As more than 60 square miles Los Angeles violently burned earlier this month, then-President Elect Donald Trump placed blame on a fish. Trump falsely implied in a Truth Social post that Los Angeles lacked the water to put out the fires because Gov. Gavin Newsom chose to protect an

By Katie Hunt, CNN (CNN) — A cache of human-like fossils from China has perplexed scientists for decades, defying explanation or categorization. The skull fragments, teeth, jaws and other remains unearthed at different sites across the country are clearly remnants of archaic hominins — the formal name for species in the human lineage — who

By Ashley Strickland, CNN (CNN) — Mysterious fast radio bursts, or millisecond-long bright flashes of radio waves from space, have intrigued astronomers since the first detection of the phenomenon in 2007. The enigmatic signals, known as FRBs, release as much energy in less than the blink of an eye as the sun emits in one

By Mindy Weisberger, CNN (CNN) — Hundreds of unusual discs unearthed in Denmark are revealing clues into how a Stone Age population responded to a devastating volcanic eruption nearly 5,000 years ago, a new study has found. Scientists discovered the first of these small, carved stone artifacts in 1995 at a Neolithic site called Rispebjerg

By Amarachi Orie, CNN London (CNN) — The size of human beings has increased over the past century thanks to better health and nutrition — but this change has not occurred equally among men and women, a new study shows. Men have grown taller and heavier at more than twice the rate of women, according

By Laura Paddison and Ella Nilsen, CNN (CNN) — The streets of Beijing have changed dramatically within just a few years. The noisy, smelly thrum of traffic has been replaced by an unusual quiet for a megacity. Roads course with a stream of mostly electric vehicles, all with their distinct, green license plates. This is

By Jackie Wattles, CNN (CNN) — It was a simple, sunny afternoon on Canada’s Prince Edward Island as Joe Velaidum and his partner, Laura Kelly, set off to walk their dog. Noticing a stray leash lying in the yard, Velaidum briefly stopped to pick it up before setting off on a quick walk. Minutes later,

By Mindy Weisberger, CNN (CNN) — If you are using your smartphone to navigate, your system just got a crucial update. Scientists have released a new model tracking the position of the magnetic north pole, revealing that the pole is now closer to Siberia than it was five years ago and is continuing to drift

By Ella Nilsen, Matt Egan and Chris Isidore, CNN (CNN) — President Donald Trump signed executive actions Monday and cemented his intent to double down on fossil fuels and reverse America’s progress on climate change and clean energy, including signing orders to pull United States out of the Paris climate agreement. Trump’s day-one actions come

By Rachel Ramirez, CNN (CNN) — Eric Mauchan’s Cape Cod-style house in Framingham, Massachusetts, does not have central air conditioning. So when the summer heat bears down, his four window AC units, two dehumidifiers and fans that keep the 2,600-square-foot home cool push his electricity bill to roughly $200 a month. In the depths of

By Ashley Strickland, CNN (CNN) — Landing on the moon is one of the most challenging things humanity has attempted. Perhaps that’s part of what drives us to keep trying. Years before astronauts are set to return to the lunar surface, a stream of robotic explorers are carrying the ambitions of private companies aiming for

By Ashley Strickland, CNN (CNN) — The first controlled clinical trial recorded in the modern age, carried out in 1747 to test treatments for scurvy, may have drawn inspiration from the nephew of Sir Isaac Newton’s laboratory assistant, according to new research. Today, clinical trials are an essential part of medical research that can lead

By Katie Hunt, CNN (CNN) — A startling discovery made public in July that metallic rocks were apparently producing oxygen on the Pacific Ocean’s seabed, where no light can penetrate, was a scientific bombshell. Initial research suggested potato-size nodules rich in metals, predominantly found 4,000 meters (13,100 feet) below the surface in the Clarion-Clipperton Zone,