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By Kathleen Magramo, CNN (CNN) — Water was already up to his knees, but 22-year-old Kierwen Garlan’s first thought was how to help his neighbors, as their homes were filling with floodwater and being lashed by heavy rain. Tropical Storm Trami, known locally as Kristine, swept across the northeastern Philippines last week, inundating entire towns

By Rachel Ramirez, CNN (CNN) — The world’s trees are in critical danger, with a staggering number of tree species teetering on the brink of extinction, according to a new global analysis released Monday. The decade-long project found that more than one in three tree species are threatened with extinction, underscoring the scale of the crisis

By Jackie Wattles, CNN (CNN) — Greetings, earthlings! I’m Jackie Wattles, and I’m thrilled to be a new name bringing awe to your inbox. I’ve covered space exploration for nearly a decade at CNN, and there has never been a more exciting time to follow space and science discoveries. As researchers push forward to explore

By Ashley Strickland, CNN (CNN) — Researchers have connected the identity of skeletal remains found in a well at Norway’s Sverresborg castle to a passage in a centuries-old Norse text. The 800-year-old Sverris saga, which follows the story of the real-life King Sverre Sigurdsson, includes the tossing of the body of a dead man —

By Jackie Wattles, CNN (CNN) — Three NASA astronauts and one Russian cosmonaut were unexpectedly transferred to a medical facility in Florida rather than immediately returning to their home base in Houston after their splashdown early Friday morning aboard a SpaceX Crew Dragon capsule. One of those astronauts stayed at Ascension Sacred Heart Pensacola Friday

By Taylor Nicioli, CNN (CNN) — When dinosaurs roamed Earth, their surroundings looked very different than the world of today. But there were also some similarities. And now scientists have confirmed a new one: Diverse firefly species lit up the night during the late Mesozoic. The discovery comes from a fossil of an ancient firefly species

By Jackie Wattles, CNN (CNN) — The two test pilots for the inaugural crewed flight of Boeing’s Starliner spacecraft — NASA’s Suni Williams and Butch Wilmore — left Earth for the International Space Station under the impression their trip would last only about one week. Months later, after determining that the technical issues the Starliner

By Ashley Strickland, CNN (CNN) — The powerful Euclid telescope has captured millions of stars and galaxies in a dazzling new mosaic — and it represents just the first piece of a massive puzzle the observatory has been designed to solve. The European Space Agency mission, launched in July 2023, will create the largest and

By Katie Hunt, CNN (CNN) — Lost for centuries, two cities lay buried, nearly 5 kilometers (3 miles) apart, underneath grassy pastures in the mountains of Uzbekistan. Now, archaeologists for the first time have mapped these intriguing highland strongholds in the country’s southeast — once a key crossroad of ancient silk trade routes — that

By Issy Ronald, CNN (CNN) — Scientists have scoured the depths of the ocean and outer space for microbes to help slow global warming. They’re now looking at a new and unlikely place —  inside your home. A group called the Two Frontiers Project (2FP) — funded by biotech company Seed Health — is asking people in

By Issy Ronald, CNN London (CNN) — A hoard of Norman-era silver coins unearthed five years ago in southwestern England has become Britain’s most valuable treasure find ever, after it was bought for £4.3 million ($5.6 million) by a local heritage trust. For the group of seven metal detectorists who discovered the 2,584 silver pennies

By Ashley Strickland, CNN (CNN) — A massive space rock, estimated to be the size of four Mount Everests, slammed into Earth more than 3 billion years ago — and the impact could have been unexpectedly beneficial for the earliest forms of life on our planet, according to new research. Typically, when a large space

By Taylor Nicioli, CNN (CNN) — The famous Halley’s comet is about halfway through its roughly 76-year orbit of the sun, having reached its farthest point from its host star in December 2023. The comet won’t be visible in the night sky until 2061. But the debris the comet leaves in its trail — otherwise known as

By Ashley Strickland, CNN (CNN) — A mile and a half beneath the ocean’s surface, the seafloor seems nearly as alien as the surfaces of other planets. Deep-sea volcanic ridges, formed by the collisions of tectonic plates, create underwater hot springs in an otherwise frigid environment. These hydrothermal vents belch warm towers of elements that

By Ashley Strickland, CNN (CNN) — For nearly two centuries, scientists have tried to solve an enduring mystery about a giant millipede-like animal named Arthropleura that used its many legs to roam Earth more than 300 million years ago. Now, two well-preserved fossils of the creature unearthed in France have finally revealed what Arthropleura’s head

Story by Reuters (CNN) — The mass bleaching of coral reefs around the world since February 2023 is now the most extensive on record, the National Oceanic and Atmospheric Administration told Reuters this week. A staggering 77% of the world’s coral reef areas — from the Atlantic to the Pacific to the Indian oceans — have so far been subjected to bleaching-level heat stress,

By Katie Hunt, CNN (CNN) — The origin of modern humans’ long-standing love affair with carbs may predate our existence as a species, according to a new study. A once prevailing stereotype of ancient humans feasting on mammoth steak and other hunks of meat helped foster the idea of a protein-heavy diet that was necessary

By Ella Nilsen, CNN (CNN) — Clean energy executive Cary Kottler was one of millions who lost power and heat as winter storm Uri, as it was called, blasted Texas with a historic cold snap in 2021. The temperature inside his house hovered just above the freezing mark. Kottler’s family goldfish froze in its tank.

By Taylor Nicioli, CNN (CNN) — For the first time, scientists have found evidence that marine mammals could be inhaling microplastics, according to new research that detected the potentially harmful particles in the breath of bottlenose dolphins off the coasts of Louisiana and Florida. Microplastics are small pieces of plastic defined as less than 5 millimeters

By Laura Paddison, CNN (CNN) — Humanity has thrown the global water cycle off balance “for the first time in human history,” fueling a growing water disaster that will wreak havoc on economies, food production and lives, according to a landmark new report. Decades of destructive land use and water mismanagement have collided with the