Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe ...

Mathematical quirks of our universe have led some cosmologists wonder whether the cosmos was actually born in a black hole.

Science has a knack for giving us answers, but sometimes its best trick is leaving us with better questions. In the last few ...

These distant worlds are called exoplanets: planets that exist outside our solar system. Most of the exoplanets scientists have discovered so far orbit stars within the Milky Way, but some lie even ...

Increasing the chance of fusion means raising the density of nuclei in the apparatus as well as the length of time they ...

In a landmark paper, they reveal a counterintuitive strategy that flips decades of battery chemistry on its head. They’ve demonstrated a lithium-metal battery — the holy grail of energy density — that ...

A recent study by the University of Eastern Finland is the first to report that the fatty acid composition of blood and the enzyme activity associated with it predict the development of bone mineral ...

Growing older often comes with the expectation of memory loss. By age 80, the average person recalls far fewer words on standard memory tests than they did in middle age.

Scientists peering into the very heart of the planet Mars have found a deeply unexpected structure. There, at the innermost ...

Scientists have discovered what's thought to be the oldest mummies in the world in southeastern Asia. Mummification prevents ...

Yellowstone, established as a national park in 1872, provides scientists with a rare opportunity to study how large ...

Wearing a weighted vest while walking can improve fitness, strength, and bone health. They can help with weight loss, too.