We know we got here from somewhere, but who would have suspected it was by way of a fish that used electrical currents to hunt and communicate and locate itself?
Time, arguably our most precious nonrenewable resource, has a slippery nature in our minds. Sometimes it flows quickly. In other situations, it trickles at an unbearably slow pace. And, to the horror of many, it speeds as we age. Why should something as reliable as a ticking clock be perceived with such inconsistency? Claudia Hammond,…
Predicting the future is notoriously difficult, but uncovering the past can be just as tricky. Now researchers have developed a method that looks backward and may reveal where a widespread phenomenon originated, be it the outbreak of a disease or a new technology. The new method relies on distance, but is not constrained by geography….
Astronomers have measured the background light from all the stars in the cosmos and inferred the number of stars created since the dawn of the universe, Using observations from NASA’s Fermi Gamma-ray Space Telescope, scientists discovered emissions from distant blazars – gamma ray-emitting supermassive black holes at the centers of galaxies. As matter falls into…
How do we judge whether a person knows what he or she is talking about? How do we gauge someone’s credibility? At least in part, we rely on a set of cues – titles, university degrees, papers published, lectures given – that have long been bound up in the concept of “expertise”. If a person…
While many scientists have some dire warnings against us trying to geoengineer our way out of the climate crisis, others don’t necessarily see it that way and are working on new methods to solve the problem. Researchers are studying the idea of cloud brightening, utilizing ships to shoot salt water high into the atmosphere over…
Are you uncomfortable with ambiguity? It’s a common condition, but a highly problematic one. The compulsion to quell that unease can inspire snap judgments, rigid thinking, and bad decision-making. Fortunately, new research suggests a simple antidote for this affliction: Read more literary fiction. A trio of University of Toronto scholars, led by psychologist Maja Djikic,…