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Does estrogen protect against dementia? And if so, who should take it?
In women's reproductive years, their brains are exposed to high levels of sex hormones, and their neurons may come to depend on those hormones to function optimally. But leading up to and after menopause, the ovaries pr…
Why do cats lick each other?
In a multicat household, it's common to see one cat licking another. When some people see this behavior, known as allogrooming ("allo" means "another individual"), they assume it's a sign of friendship. But is that rea…
Researchers develop framework to boost thermoelectric efficiency by 30%
Researchers have introduced a unified framework demonstrating that thermoelectric performance relies on various factors beyond the materials themselves, including environmental conditions and device design. This insight…
The Celestron StarSense Explorer DX 130AZ is a pretty good telescope if your situation calls for a tripod-mounted instrument. If you’ve decided a tripod-mounte…
Given that it's the closest planet to the sun, Mercury seems like it should be the hottest planet in our solar system . However, at a blistering 900 degrees F…
An exceptionally well-preserved fossilized molar belonging to an adult Pacific mastodon has surfaced in a nature preserve near San Francisco. Upon first glanc…
Weakening Atlantic Ocean currents could cripple agriculture in some of the world's major breadbaskets, threatening global food security and raising the price o…
While artificial intelligence (AI) systems can now solve challenging math equations and respond in human-like language, the question of AI consciousness has mo…
Tiny fragments of ancient alien tech may be strewn across the surface of the moon , and it may be relatively easy to find these microscopic relics, scientists …
Giant armored crustaceans, or amphipods, can survive for years without food due to a gene acquired from bacteria that allows them to metabolize alternative ene…
The brain undergoes dramatic changes during puberty and pregnancy, but during menopause, the organ's structure remains remarkably stable, a new study suggests.…
Companion by name, companion by nature, as the updated Swarovski CL Companion binoculars are a breath of fresh air that appeal to a younger, wider audience and…
The largest hoard of Viking Age silver ever found in Finland — which contains almost 10 pounds (4.5 kilograms) of coins and jewelry — has been unearthed by a m…
Many people are familiar with melatonin, a hormone that helps ready the body for sleep. But there's another, lesser-known chemical in the brain, called orexin,…
