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By Jackie Wattles, CNN (CNN) — His venture may seem far out, but asteroid mining CEO Matt Gialich has no illusions. The engineer cofounded the bold California startup AstroForge in 2022 with the aim of hunting for precious metals in space, and he is all too aware that success is not guaranteed. And, quite frankly,

By Ashley Strickland, CNN (CNN) — With its iconic rusty hue, Mars has long been called the red planet. Now, scientists may have discovered the potential source of that distinctive coloring, overturning a popular theory in the process. Mars is one of the most well-studied planets in our solar system due to its proximity to

By Ashley Strickland, CNN (CNN) — Asteroid 2024 YR4, deemed the riskiest asteroid on record last week, now has nearly a zero percent chance of impacting Earth in 2032, according to NASA and the European Space Agency. NASA estimates that the space rock has a 0.0017% chance of hitting Earth in December 2032, while the

By Taylor Nicioli, CNN (CNN) — The Blue Ghost lunar lander has been sharing dazzling visuals of our celestial neighbor since it successfully entered the moon’s orbit on February 13. The new footage features a close-up of the moon’s far side, an area that is not visible from Earth, taken after the lander transitioned from

By Ella Nilsen and Amy O’Kruk, CNN (CNN) — President Donald Trump swept into office with a three-word energy policy: Drill baby drill. In Trump’s telling, unleashing US oil drilling will reduce gas prices — and thereby Americans’ cost of living — and increase the nation’s energy independence. But there is a very simple reason

By Ashley Strickland, CNN (CNN) — Runes, the oldest form of writing in Scandinavia, are the result of what happened when one community met another. Early Scandinavians began trading goods with the Roman army within the first few centuries AD. Experts believe the Roman alphabet may have inspired the Scandinavians to create their own writing

By Ashley Strickland, CNN (CNN) — The world’s oldest dated rune stone, a landmark discovery revealed in 2023, is just one piece of a larger, nearly 2,000-year-old slab, new research has found. Now, scientists in Norway are working to reassemble the ancient puzzle, a process that’s starting to shed light on who carved the mysterious

By Jackie Wattles, CNN (CNN) — Some House Democratic lawmakers are raising “deep alarm” over Department of Government Efficiency’s interactions with NASA and potential conflicts of interest in a new letter released Friday. “The lack of transparency surrounding DOGE’s presence and activities within NASA is ominous and unacceptable,” reads the letter, which is signed by

By Ella Nilsen and Laura Paddison, CNN (CNN) — The Trump administration told US government scientists working on a vital global climate report to stop their work, according to a scientist involved in the report – the latest move to withdraw the US from global climate action and research. The US had been highly involved

By Jackie Wattles, CNN (CNN) — A massive chunk of a Blue Origin rocket’s nose cone washed up on the shore of a Bahamian island near a tourist destination. In Europe, flaming debris from a SpaceX launch vehicle streaked across the German sky, and what appears to be a fuel tank may have landed on

By Laura Paddison, CNN (CNN) — The Panama Canal is an extraordinary feat of engineering. This waterway, which slices 50 miles across the isthmus of Panama to connect the Atlantic and Pacific Oceans, is an artery of world trade and a key source of Panamanian pride. But it’s in trouble. More frequent, intense droughts have

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