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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 The noisy, smelly thrum of traffic has been replaced by an unusual quiet for a megacity.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 Laura Paddison, CNN (CNN) — Nic Arnzen can spot people who, like him, have lost their homes to the LA wildfires. “We have the same look in our eyes, the same zombie-like walk,” he said. Arzen’s home in Altadena, a diverse community nestled in the foothills of the San Gabriel mountains, was consumed by

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,

By Jackie Wattles and Kia Fatahi, CNN (CNN) — US regulators and government officials in Turks and Caicos are looking into reports of property damage in the island nation caused by debris falling after a SpaceX Starship vehicle exploded over the ocean during a test mission Thursday, according to the Federal Aviation Administration. Flights of

By Amarachi Orie, CNN (CNN) — For the first time, a location beyond Earth has been listed as vulnerable by the World Monuments Fund, an international nonprofit that every two years highlights 25 heritage sites at risk. The Fund included the moon on its 2025 Watch list due to the dawn of a new Space

By Julianna Bragg, CNN (CNN) — Scientists have newly identified a “supergiant” sea bug species after purchasing crustaceans from fishermen and restaurants in Vietnam to study the growing popularity of the creatures as a local delicacy. The deep-sea critter, now called Bathynomus vaderi, got its name after researchers noticed its head shared a resemblance to

By Amarachi Orie and Barbie Latza Nadeau, CNN (CNN) — Elite ancient Romans would treat their guests to relaxing thermal baths when they came to enjoy the merriment of a large feast, a new discovery at the archaeological site of Pompeii has shown. Inside a residential house, archaeologists have uncovered one of the largest and

CNN By Jackie Wattles and Ashley Strickland, CNN (CNN) — SpaceX’s colossal Starship launch system lifted off on its seventh uncrewed test flight Thursday, with an upgraded version of the megarocket embarking on the program’s most ambitious flight to date. SpaceX was able to duplicate its prior feat of catching a booster that returned to

By Jackie Wattles and Ashley Strickland, CNN (CNN) — SpaceX’s colossal Starship launch system lifted off on its seventh uncrewed test flight Thursday, with an upgraded version of the megarocket embarking on the program’s most ambitious flight to date. SpaceX was able to duplicate its prior feat of catching a booster that returned to Earth.

By Katie Hunt, CNN (CNN) — The age of de-extinction may soon be a reality. Advances in genetic engineering and synthetic biology are making resurrecting animals once lost to this world a tangible prospect. The organizations and companies at the forefront of de-extinction efforts are promising success — and surprisingly soon. Those efforts just got