It’s obvious to many of us — whether we’re an only child or not — that siblings are often different from each other. Judy Dunn, emeritus professor of developmental psychology at Kings College London, and Robert Plomin, professor of behavioral genetics at the same institution, were among the first scholars to start empirically questioning why this happens. Drawing from differences they noticed in Dunn’s children, over the past 30 years, they’ve tested siblings’ variations in charact ...read more

For many years, the Cave of the Malalmuerzo (“bad lunch”) near Granada, Spain, located near rocky farmland, stood open to the public. Local residents stooped under the low ceiling and wound their way through stalactites, and some made the belly-crawl to the deeper reaches of the cave and the early paintings there. They took home “some artifact […] ceramics, bits of bone, etc.,” writes a local businessman. In 1983, the first archaeologists showed up, but the souvenir-hunting continued ...read more

Technically, every single object in the universe with mass or energy emits a gravitational field, and scientists have been able to measure the gravitational field of objects far smaller than a human. General Relativity Einstein revolutionized our understanding of gravity with his magnum opus, the general theory of relativity. The theory transformed our perspective of gravity from a simple property of objects relating to their mass, to a view of the cosmos where space and time can bend, flex and ...read more

For most American workers who commute, the trip to and from the office takes nearly one full hour a day – 26 minutes each way on average, with 7.7% of workers spending two hours or more on the road. Many people think of commuting as a chore and a waste of time. However, during the remote work surge resulting from the COVID-19 pandemic, several journalists curiously noted that people were – could it be? – missing their commutes. One woman told The Washington Post that even though she ...read more

Invented in China around 5,500 years ago, silk was the slipperiest, most mysterious material in the ancient world. Fashioned from the twisted threads of the cocoons of the mulberry silkworm, the fabric’s process of production was protected by the state for several thousand years. That said, the secrecy of silk manufacturing didn’t mean that the material remained restricted to China for all of antiquity. In fact, traces of the finished fabric made their way west well before the strategies of ...read more

When people think about evolution and human beings, the assumption is often made that we have stopped evolving. Once upon a time, we had to evade predators, compete with other hominid species and fight off disease. And thanks to modern society, agriculture, medicine, and technology, we've largely alleviated these physical selection pressures on our species.   Are Humans Still Evolving? Perhaps we haven't stopped after all. Broadly speaking, evolution simply means the gradual change in the gene ...read more

NASA recently announced the discovery of a new, Earth-sized planet in the habitable zone of a nearby star called TOI-700. We are two of the astronomers who led the discovery of this planet, called TOI-700 e. TOI-700 e is just over 100 light years from Earth – too far away for humans to visit – but we do know that it is similar in size to the Earth, likely rocky in composition and could potentially support life. You've probably heard about some of the many other exoplanet discoveries� ...read more

During the 1992 NBA Championship finals, Michael Jordan hit six 3-pointers in 18 minutes then turned to the crowd with an iconic shrug. Later, he said he was so “in the zone” he literally didn’t know how he did it. He was talking about, of course, that thrilling feeling of flow. A term coined by the late positive psychology expert Mihály Csíkszentmihályi, flow is the state of being hyper-focused, fully absorbed and energized by the task at hand. “Flow is the feeling of being immersed ...read more

In 1846, a Japanese policeman drew a legendary mermaid with scales like a coat of mail and flowing hair that ran all the way down to three mer-fins. He’d come across the creature while investigating a report of a greenish glow in the water and had listened as the fish-person forecasted a good harvest and added, almost as an aside: “Should an epidemic come,” the beaked Amabie said, “draw me and show me to the people.” An early Japanese newspaper re-printed the drawing using wooden block ...read more

St. Patrick, patron saint of Ireland, is best known for bringing Christianity to the Emerald Isle, but his story is chock-full of other legends and miracles, too. It’s been said that the missionary raised dozens of people from the dead, for example, and even banished all of Ireland’s snakes into the sea following a 40-day fast. Unfortunately, and perhaps unsurprisingly, the science doesn’t quite back up this latter claim. While it’s true that the Irish don’t have any snakes to deal wit ...read more