The origin of life just got more complicated. A radical new study argues that bacteria and archaea, the two main lineages of life, may have independently evolved the metabolic machinery to transition from non-living to living, suggesting life on Earth arose twice. Meanwhile, deep beneath the Pacific Ocean, Earth's liquid outer core has done something unexpected: a massive flow of molten iron suddenly reversed direction, and scientists aren't sure why. Data from ESA satellites captured the shift, adding another layer of mystery to our planet's inner workings. In health and neuroscience, several breakthroughs demand attention. Researchers have restored a key brain receptor in adult mice, showing surprising benefits for autism spectrum disorder long after the developmental window typically thought critical. A separate NIH-funded study uncovered a hidden immune shift in the hippocampus that begins around age 50, potentially reshaping how we understand memory decline. And for anyone struggling with sleep, a soft wearable patch from UT Austin called NEUSLeeP uses gentle ultrasound to boost REM sleep without drugs or surgery. Space exploration continues to draw lessons from extreme environments on Earth. A 10-month study of 12 people in Antarctica tracked how isolation and cramped quarters affect teamwork, offering direct insights for future Mars missions. Separately, researchers argue that the key to colonizing Mars may be hidden inside asteroids, turning Hollywood fantasy into a plausible resource strategy. On the more whimsical side, scientists rediscovered lost Megalodon fossils and confirmed a 79-foot giant, while a dress made of living mycelium can now self-clean and repair its own holes.