Jeff Bezos’s rocket company Blue Origin hopes to become a major rival to SpaceX in the private space industry. But those ambitions are on hold after the company postponed the test launch of its new ...

Bring up germline editing, and most scientists cringe. The idea behind the notorious CRISPR-baby scandal, editing reproductive cells or embryos tinkers with DNA far beyond just the patient—any changes ...

We all know that time seems to pass at different speeds in different situations. For example, time appears to go slowly when we travel to unfamiliar places. A week in a foreign country seems much ...

Interacting with AI chatbots like ChatGPT can be fun and sometimes useful, but the next level of everyday AI goes beyond answering questions: AI agents carry out tasks for you. Simple AI agents can be ...

In the great AI gold rush of the past couple of years, Nvidia has dominated the market for shovels—namely the chips needed to train models. But a shift in tactics by many leading AI developers ...

Breakthroughs in medicine are exciting. They promise to alleviate human suffering, sometimes on global scales. But it takes years, even decades, for new drugs and therapies to go from research to your ...

Every Saturday we post a selection of our favorite science and technology articles from the week. With 2024 nearing its end, we dug through all those posts again to surface 25 stories worth revisiting ...

Scientists have been engineering “mirror life” by changing the chirality of life’s building blocks. Now, it's time to set ...

“We exist, and life exists on Earth, because of 12 to 14 inches of topsoil. When that goes away, we go away,” said James Ehrlich, director of compassionate sustainability at Stanford University. It ...

Despite the hype around AI in recent years, the technology’s disruptive impact has been fairly modest. Experts say that’s likely to change next year as AI agents force their way into all aspects of ...

When human stem cells were discovered at the turn of the century, it sparked a frenzy. Scientists immediately dreamed of repairing damaged tissues due to aging or disease. A few decades later, their ...

In the late 1800s, Spanish neuroscientist Santiago Ramón y Cajal drew hundreds of images of neurons. His exquisite work influenced our understanding of what they look like: Cells with a bulbous center ...