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By Radina Gigova, CNN London (CNN) — A “remarkable” Pictish ring with “an intricate setting” was discovered in Scotland by an amateur archaeologist after being buried for more than 1,000 years. The “kite-shaped ring with a garnet or red glass center” was unearthed by a volunteer at the site of a fort in Burghead, in

By Monica Garrett and Steve Tuemmler, CNN (CNN) — A roughly 1-meter (3-foot) asteroid burned up in Earth’s atmosphere over the Philippines near Luzon Island early Wednesday afternoon, according to NASA. The European Space Agency estimated the impact occurred at 12:39 p.m. ET (4:39 p.m. UTC). The Catalina Sky Survey discovered the object, initially called

By Katie Hunt, CNN (CNN) — A wheeled bot rolls across the floor. A soft-bodied robotic star bends its five legs, moving with an awkward shuffle. Powered by conventional electricity via plug or battery, these simple robotic creations would be unremarkable, but what sets these two robots apart is that they are controlled by a

By Laura Paddison, CNN (CNN) — A team of NASA rocket scientists is developing autonomous underwater robots able to go where humans cannot, deep beneath Antarctica’s giant ice shelves. The robots’ task is to better understand how rapidly ice is melting — and how quickly that could cause catastrophic sea level rise. In March, scientists

By Amarachi Orie, CNN (CNN) — In the years since the Titanic sank after hitting an iceberg in 1912, we have become familiar with haunting images of the doomed passenger liner’s bow, lying at the bottom of the North Atlantic Ocean. Now, new photos taken this summer show that the view has changed dramatically. The

By Rachel Ramirez, CNN (CNN) — The largest dam removal project in US history is finally complete, after crews last week demolished the last of the four dams on the Klamath River. It’s a significant win for tribal nations on the Oregon-California border who for decades have fought to restore the river back to its natural

By Katie Hunt, CNN (CNN) — What lies beneath the waves is among the planet’s biggest mysteries. About half of Earth’s surface remains unknown and unexplored. That’s because humans have mapped only a quarter of the seafloor, which covers around 70% of the planet, to a high resolution. But how do you find what you

By Ashley Strickland, CNN (CNN) — Rocky debris blasted away from the tiny asteroid Dimorphos when NASA’s DART spacecraft intentionally slammed into it in 2022 could create the first human-made meteor shower known as the Dimorphids, new study has found. The space agency planned the DART, or Double Asteroid Redirection Test, mission to carry out

By Jackie Wattles, CNN (CNN) — The world’s most frequently launched rocket — the SpaceX Falcon 9 — is cleared to fly again, federal regulators announced Friday evening, putting the vehicle back on track for two high-profile human spaceflight missions. The Federal Aviation Administration, which licenses commercial rocket launches, grounded SpaceX’s rocket on August 28,

By Lianne Kolirin, CNN (CNN) — Marmosets can communicate with one another by name and know when they are being addressed, joining a very short list of species exhibiting such behavior, and a first for non-human primates, a new study has found. The monkeys use specific calls, known as “phee-calls,” to call each other, which

By Ashley Strickland, CNN (CNN) — An ancient, submerged bridge in a cave on the Spanish island of Mallorca is helping researchers determine when humans first settled on islands across the western Mediterranean Sea thousands of years ago. A new analysis of the 25-foot-long (7.6-meter-long) bridge inside Genovesa Cave has revealed that humans lived on

By Jackie Wattles, CNN (CNN) — After 12 weeks in space, Boeing’s Starliner spacecraft is finally set to return home from the International Space Station on September 6 — albeit without its two-person crew. The troubled spacecraft will undock from the orbiting laboratory around 6 p.m. ET, and it will spend about six hours maneuvering

By Katie Hunt, CNN (CNN) — A rare fossil has provided a snapshot of what was an exceptionally unlucky day for a prehistoric sea cow. The now-extinct species of dugong, a manatee-like marine mammal, was swimming in the sea about 15 million years ago when it was preyed upon by two animals: a crocodile and a

By Jackie Wattles, CNN (CNN) — SpaceX’s prolific Falcon 9 rocket has been grounded for the second time in two months after federal regulators said they wanted to review a wayward landing attempt that occurred Wednesday morning. That makes the Falcon 9 rocket unable to fly with two key human spaceflight missions on the horizon.

By Katie Hunt, CNN (CNN) — Imagine four skyscrapers the height of Burj Khalifa, the world’s tallest building, stacked on top of one another. That’s almost the height of an underwater mountain newly discovered and mapped by oceanographers led by the Schmidt Ocean Institute in California. Located in the Pacific Ocean 900 miles (1,448 kilometers)

By Laura Paddison, CNN (CNN) — Namibia is planning to kill more than 700 wild animals, including elephants, zebras and hippos, and distribute the meat to the people struggling with food insecurity as the country grapples with its worst drought in 100 years. The animals set to be culled include 83 elephants, 30 hippos, 60

By Jackie Wattles, CNN (CNN) — SpaceX has once again delayed the kickoff of its latest mission: a bold and risky trek into Earth’s Van Allen radiation belts by a four-person crew of civilians who will also aim to conduct the first commercial spacewalk. The mission, dubbed Polaris Dawn, was set to take off as

By Ashley Strickland, CNN (CNN) — Astronomers have spotted six rogue worlds, or cosmic objects that don’t orbit stars, using the James Webb Space Telescope. The celestial bodies are slightly bigger than Jupiter, and the observations are shedding light on how stars and planets form across the universe. The Webb telescope peered into a star-forming