Infant twins buried together in Roman Croatia may have died from lead poisoning

NASA sleep researchers are sounding the alarm about "social jet lag"—a sneaky sleep problem where your body’s natural clock gets thrown off by inconsistent bedtimes and wake-ups (think late nights on weekends versus early alarms for work). Millions of people brush it off, but the mismatch can leave you chronically exhausted and even harm long-term health. The fix? Simple but tough: stick to a regular sleep routine, soak up morning sunlight, and tweak your bedroom for better rest.

Editor’s Note: We all joke about being tired, but this isn’t just about yawning through Monday meetings. Social jet lag quietly strains your body like actual jet lag—messing with metabolism, mood, and focus. NASA’s warning makes it clear: small sleep tweaks could be a big deal for feeling sharper and staying healthier. It’s a wake-up call (literally) for anyone burning the candle at both ends.

Astronomers have discovered a new dwarf planet lurking in the far reaches of our solar system, way beyond Pluto. This tiny world, which hasn’t even been named yet, is so distant that it takes roughly 1,100 Earth years to complete a single orbit around the Sun. The find highlights just how much we still don’t know about our cosmic neighborhood.

Editor’s Note: Discoveries like this remind us that the solar system is still full of surprises. While it might not change our daily lives, each new object helps scientists piece together the history of how our planetary system formed—and maybe even uncover clues about other mysteries, like the hypothetical "Planet Nine." Plus, it’s just cool to know there’s a whole little world out there we didn’t even know existed until now.

Scientists are debating whether the current rapid loss of species qualifies as a "sixth mass extinction" on par with catastrophic events like the asteroid that wiped out the dinosaurs. While the biodiversity crisis is undeniable, comparing it to ancient die-offs is tricky—we're seeing different patterns, and human activity is the clear driver this time.

Editor’s Note: This isn't just academic—it's about whether we're living through a planetary emergency on the scale of Earth's worst disasters. If scientists confirm we're in a mass extinction, it underscores how urgently we need to rethink humanity's impact on ecosystems. But even without the label, the staggering rate of species loss demands action.

Robert Jarvik, the brilliant medical innovator behind the Jarvik-7—the first artificial heart to be successfully implanted in a human—has passed away at 79. His groundbreaking work in the 1980s paved the way for modern heart-assist technologies, offering hope to countless patients with severe heart disease. While the early devices had limitations, Jarvik’s relentless tinkering and vision laid the foundation for today’s life-saving artificial organs.

Editor’s Note: Jarvik’s legacy isn’t just about a single device—it’s about pushing the boundaries of what’s possible in medicine. His work forced the world to grapple with big questions: How far should we go to extend human life? Can machines truly replace biology? Even decades later, his influence echoes in every ventricular assist device and artificial heart keeping patients alive today. For anyone whose life has been touched by cardiac care, Jarvik’s story is a reminder of how one stubborn, creative mind can change the game.

Scientists digging into ancient DNA from over 100 individuals in China stumbled upon something eerie—a "ghost" lineage, a previously unknown group of people who left traces in the genes of ancient Tibetans. This shadowy population seems to have mingled with others thousands of years ago, adding another twist to the already complex puzzle of human migration and ancestry in Asia.

Editor’s Note: This isn’t just some academic curiosity—it’s a missing piece of humanity’s sprawling family tree. The discovery hints at how diverse ancient populations really were, and how much we still don’t know about who our ancestors met (or were) along the way. For Tibetans, it might help explain unique genetic traits tied to high-altitude survival. Basically, it’s another reminder that history is full of ghosts, and science keeps finding them.