Category: Quantum Stuff

In May 2020, as the first wave of the COVID-19 pandemic chewed through Texas, I went to an Austin nature store and bought several bird feeders. The birds, drawn by seed and suet slabs, came soon afterward. They flitted down from the pecan trees and telephone wires: bold Tufted Titmice, bouncing Northern Cardinals and bullying… Continue reading Bird Feeders Are Good for Some Species—But Possibly Bad for Others

Pebble accretion is now a favored theory for how gas giant cores are made, and many astronomers argue it may be taking place in those ALMA images, allowing giant planets to form in the first few million years after a star is born. But the theory’s relevance to the small, terrestrial planets near the sun… Continue reading Astronomers Reimagine the Making of the Planets

Within a decade, a small rover on Mars will pick up samples of rock left by a previous mission. It will then load them into a rocket secured within a small platform on a flat patch of the planet’s surface. Once the rocket’s hatch has closed, the platform will toss it upward on its side,… Continue reading The First Rocket Launch from Mars Will Start in Midair

Imagine that while you are enjoying your morning bowl of Cheerios, a spider drops from the ceiling and plops into the milk. Years later, you still can’t get near a bowl of cereal without feeling overcome with disgust. Researchers have now directly observed what happens inside a brain learning that kind of emotionally charged response.… Continue reading Scientists Watch a Memory Form in a Living Brain

Last March, Iowa State University mathematicians Leslie Hogben and Carolyn Reinhart received a welcome surprise. Adam Wagner, a postdoctoral fellow at Tel Aviv University, emailed to let them know he’d answered a question they’d published the week before — though not by any of the usual math or brute-force computing techniques. Instead, he used a… Continue reading In New Math Proofs, Artificial Intelligence Plays to Win

Billions of years ago, some unknown location on the sterile, primordial Earth became a cauldron of complex organic molecules from which the first cells emerged. Origin-of-life researchers have proposed countless imaginative ideas about how that occurred and where the necessary raw ingredients came from. Some of the most difficult to account for are proteins, the… Continue reading Peptides on Stardust May Have Provided a Shortcut to Life

It was 1973 when a war between Israel and a coalition of Arab states led Saudi Arabia and other oil producers to impose an embargo on crude shipments to the United States. Oil prices soared, and the way the world consumed energy changed. France built a fleet of nuclear power plants. Japan did, too; it… Continue reading Will the Russian Invasion Accelerate Peak Oil?

Tanya Lewis: Hi, and welcome to COVID, Quickly, a Scientific American podcast series. Josh Fischman: This is your fast-track update on the COVID pandemic. We bring you up to speed on the science behind the most urgent questions about the virus and the disease. We demystify the research and help you understand what it really… Continue reading The Push to Move Past the Pandemic: COVID Quickly, Episode 25

Earth without its moon is like macaroni without cheese, Bert without Ernie, Batman without Robin. The moon has been at the center of timekeeping for millennia—it’s at the origin of our months (formerly “moonths”), and some calendars are still lunar-based. Plus, the moon has a strong gravitational effect on Earth. The ocean’s tides are mostly… Continue reading The Moon Is Underrated

People around the world watched via livestreamed security camera as Russian forces attacked and took over Ukraine’s Zaporizhzhia nuclear power plant—the largest in Europe—on Friday morning local time. Amid the shelling and gunfire, a fire broke out at a training facility in the complex and was later extinguished, according to news reports. The incident raised… Continue reading The Risks of Russian Attacks near Ukraine’s Nuclear Power Plants