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By Mindy Weisberger, CNN (CNN) — Many types of birds — such as hummingbirds, peacocks and parrots — are vividly colorful, but birds-of-paradise are especially flamboyant with hues of emerald, lemon, cobalt and ruby. Now, research has revealed these stunning birds are also sending secret color signals that are invisible to human eyes. Plumage and

By Ashley Strickland, CNN (CNN) — A recently discovered asteroid, named 2024 YR4, is now the riskiest asteroid ever detected. On Tuesday, NASA calculated that the space rock had a 3.1% chance of hitting Earth in 2032, while the European Space Agency’s risk assessment sits at 2.8%. The narrow difference is due to the two

By Laura Paddison, CNN (CNN) — Large reserves of white hydrogen may exist within mountain ranges, according to a new study, raising hopes this clean-burning gas can be extracted and supercharge efforts to tackle the climate crisis. White hydrogen has recently gained attention for its potential to help replace planet-heating fossil fuels. It was only

By Ashley Strickland, CNN (CNN) — Astronomers using the James Webb Space Telescope have spied dynamic flares of light near the supermassive black hole at the center of the Milky Way galaxy. The constant, rapid-fire display includes seconds-long short flashes and longer, blindingly bright flares of light on a daily basis. The Webb observations mark

By Julianna Bragg, CNN (CNN) — If you think you have your egg-boiling technique down to a science, there is still a chance you haven’t prepared the “perfect” boiled egg. Boiling an egg flawlessly is challenging because the albumen — or egg white — and the yolk have different compositions, requiring them to be cooked

By Ella Nilsen and Rene Marsh, CNN (CNN) — Trump administration officials scrambled through the weekend amid a flood of criticism to claw back employees they fired Thursday evening at the National Nuclear Security Administration, four people familiar with the terminations — and their fallout — told CNN. More than 300 employees were initially fired

By Taylor Nicioli, CNN (CNN) — With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, but the entire lineage was wiped out about 25 million years ago, leaving prehistorians to grapple with what caused the apex predator to go extinct. Now, an international

By Ashley Strickland, CNN (CNN) — One of Earth’s deepest mysteries lies beneath our feet: the planet’s inner core. Made of iron and nickel, the hot, solid sphere is about 70% the size of the moon. Recent research suggested this dense center reversed its spin, and now, scientists have also found evidence that the shape

By Ashley Strickland, CNN (CNN) — A recently discovered asteroid, named 2024 YR4, has a 2.8% to 3.1% chance of hitting Earth in 2032, according to NASA and the European Space Agency. While the odds of an impact are slim, astronomers are closely tracking the space rock to uncover more details — a process that

By Rene Marsh and Ella Nilsen, CNN (CNN) — Trump administration officials fired more than 300 staffers Thursday night at the National Nuclear Security Administration — the agency tasked with managing the nation’s nuclear stockpile — as part of broader Energy Department layoffs, according to four people with knowledge of the matter. Sources told CNN

By Taylor Nicioli, CNN (CNN) — Scientists in Europe have identified a previously unknown species of fungus that turns cave spiders into “zombies.” The fungus lures them out of their webs before instigating an untimely death and then uses the spiders’ corpses to spread its spores. The newly discovered species, named Gibellula attenboroughii, acts in

By Jackie Wattles, CNN (CNN) — NASA’s Suni Williams and Butch Wilmore — the two astronauts who launched on Boeing Starliner’s first crewed test flight and have been in low-Earth orbit since June — want to set the record straight: They aren’t stranded on the International Space Station, and they weren’t abandoned. The duo made

CNN By Jackie Wattles, CNN (CNN) — NASA’s Suni Williams and Butch Wilmore — the two astronauts who launched on Boeing Starliner’s first crewed test flight and have been in low-Earth orbit since June — want to set the record straight: They aren’t stranded on the International Space Station, and they weren’t abandoned. The duo

By Jackie Wattles, CNN (CNN) — Blue Origin has announced plans to lay off about 10% of its workforce — or more than 1,000 employees — nearly a month after the company debuted its first orbital rocket, New Glenn. In an email to staff sent Thursday, which CNN obtained, Blue Origin CEO David Limp said

By Ashley Strickland, CNN (CNN) — Astronomers have spied a monster radio jet in the distant universe that’s twice the width of the Milky Way galaxy. The ancient object formed when the universe was less than 10% of its current age of 13.8 billion years, according to a new study. “This is the largest radio

By Jack Guy, CNN (CNN) — The remains of an ancient basilica that would have formed the heart of Roman London have been uncovered during building work in the center of the British capital. About 2,000 years old, the basilica would have housed the tribunal, where magistrates, officials and politicians would have deliberated important decisions

By Laura Paddison, CNN (CNN) — From a distance, the Ivanpah solar plant looks like a shimmering lake in the Mojave Desert. Up close, it’s a vast alien-like installation of hundreds of thousand of mirrors pointed at three towers, each taller than the Statue of Liberty. When this plant opened near the California-Nevada border in