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CNN By Amy Gunia and Alkira Reinfrank, CNN (CNN) — Some 400 kilometers (250 miles) from the nearest sea, engineering students at Switzerland’s ETH Zurich are hard at work on cutting-edge robots that may change the way the world’s oceans are studied. “Eve” the robotic fish swings its silicone tail side to side, powered by

By Amy Gunia and Alkira Reinfrank, CNN (CNN) — Some 400 kilometers (250 miles) from the nearest sea, engineering students at Switzerland’s ETH Zurich are hard at work on cutting-edge robots that may change the way the world’s oceans are studied. “Eve” the robotic fish swings its silicone tail side to side, powered by pumps

By Lou Robinson and Angela Dewan, CNN (CNN) — The Paris Olympics opened with rain on its parade, then blistering heat and, finally, a week of pleasant sunshine. As it comes to a close on Sunday, temperatures are expected to again soar up to 95 degrees Fahrenheit, or 35 degrees Celsius. The only certainty about

By Alaa Elassar, CNN South Island, New Zealand (CNN) — Justin Parkin-Rae takes a break from pulling chunks of weeds from around one of the many rivers that snake through Kaikōura, a quaint fishing town on the east coast of New Zealand’s South Island, named Te Waipounamu in his native Māori language. His jade necklace and red hair

By Ashley Strickland, CNN (CNN) — The human story became a bit more complicated about two decades ago. In 2003, archaeologists excavating inside Liang Bua, a cave on the Indonesian island of Flores, found a tiny humanlike skull. More bones followed, and at first, archaeologist Thomas Sutikna and his team thought they had uncovered the

By Ashley Strickland, CNN (CNN) — Excavations and metal-detecting work at the site of a famous ship burial in Suffolk, England, have revealed missing pieces that could help archaeologists better understand an intriguing but incomplete sixth century artifact. A team of archaeologists, volunteers and conservators unearthed additional fragments of a Byzantine bucket at Sutton Hoo,

By Ashley Strickland, CNN (CNN) — One of China’s Long March 6A rockets has broken apart in low-Earth orbit and created a debris cloud consisting of hundreds of pieces, according to multiple space debris-tracking entities. The rocket launched from the Taiyuan Satellite Launch Center on Tuesday to deliver 18 G60 satellites into orbit, which marks

By Jackie Wattles, CNN (CNN) — When astronauts Suni Williams and Butch Wilmore left Earth for International Space Station nearly three months ago, they ditched their bags for a key piece of equipment. Helming the inaugural crewed flight test of Boeing’s Starliner spacecraft, they departed without their own toiletries and other personal comforts — expecting

By Kara Fox, CNN (CNN) — A coating 100 times thinner than a human hair could be “ink-jetted” onto your backpack, cell phone or car roof to harness the sun’s energy, new research shows, in a development that could reduce the world’s need for solar farms that take up huge swaths of land. Scientists from

By Taylor Nicioli, CNN (CNN) — The ongoing excavation of an ancient Greek city in western Turkey has uncovered artifacts and archaeological remains dating as far back as the fifth century BC — including a pot filled with an undisclosed number of valuable gold coins that was hidden away for more than 2,000 years. Researchers

CNN By Alexandra Banner, CNN (CNN) — Government officials often send text messages as an effective means of warning the public about emergencies. But in New York City, some residents are receiving weather warnings from a voice in the sky as drones equipped with loudspeakers are being deployed to specific neighborhoods prone to flooding. Here’s

By Jackie Wattles, CNN (CNN) — Butch Wilmore and Suni Williams — two veteran NASA astronauts piloting the first crewed test flight of Boeing’s Starliner spacecraft — have now been in space for 63 days, roughly seven weeks longer than initially expected. There is still no clear return date in sight, and NASA is now making

By Jack Guy, CNN (CNN) — Scientists studying squaretail grouper have found that the increasing presence of fishermen in the water is changing their behavior from flirty to flighty. A team led by scientists at Lancaster University in the UK found that the fish are becoming more scared of humans and spending less time on

By Jackie Wattles and Kristin Fisher, CNN (CNN) — The launch of SpaceX’s Crew-9 mission, an endeavor planned to ferry four astronauts to the International Space Station — which could also serve as a backup vehicle for the crew assigned to Boeing’s troubled Starliner spacecraft — will be delayed, NASA announced Tuesday. The space agency

By Katie Hunt, CNN (CNN) — A hobbit-size species of ancient human that lived on the Indonesian island of Flores until about 50,000 years ago baffles scientists in several ways. First unearthed in a startling discovery nearly 21 years ago, Homo floresiensis, the scientific name for the extinct species, challenged the idea that human evolution

By Jessie Yeung, CNN Hong Kong (CNN) — As Chinese scientists analyzed the soil samples that their lunar probe brought back from the moon, they realized something groundbreaking: There was water found along with minerals in the soil. Finding water on the moon is, on its own, nothing new. NASA and Indian spacecraft have spotted

By Taylor Nicioli, CNN (CNN) — For years, Egyptologists have hotly debated how the massive pyramids of ancient Egypt were built more than 4,000 years ago. Now, a team of engineers and geologists brings a new theory to the table — a hydraulic lift device that would have floated the heavy stones up through the

By Jack Guy, CNN (CNN) — A group of scientists has devised a plan to safeguard Earth’s species in a cryogenic biorepository on the moon. Intended to save species in the event of a disaster on Earth, the plan makes use of craters that are permanently in shadow and therefore cold enough to allow cryogenic

By Jackie Wattles, CNN (CNN) — A half-billion-dollar rover that could be crucial to US lunar ambitions sits fully assembled but in a state of limbo, mere steps away from being ready for launch. Known as the Volatiles Investigating Polar Exploration Rover, or VIPER, the 948-pound (430-kilogram) vehicle is designed to scour the moon’s south

By Mary Gilbert, CNN Meteorologist (CNN) — A record-breaking heat wave unfolding at what should be the coldest time in Earth’s coldest place has scientists concerned about what it could mean for the future health of the Antarctic continent, and the consequences it could inflict for millions of people across the globe. Temperatures since mid-July have climbed