sciencealert.com

Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically feasible, according to a new analysis - satisfying both our sci-fi fancies and our innate yearning to not feel so alone in a large, cold Universe.

Push-ups can be a challenge for the best of us.

Carrying one or two copies of the APOE4 gene variant significantly increases the risk of developing Alzheimer's, and a new study reveals how APOE4 can change neuron activity - potentially many years before symptoms such as memory loss start showing.

It's easy to take our eyes for granted.

After a historic lunar flyby that carried four astronauts farther from Earth than humanity has ever been, the Artemis II crew has sent home spectacular photos of the far side of the Moon.

HOUSTON (AP) - Still aglow from their triumphant lunar flyby, the Artemis II astronauts made more history Tuesday: calling their friends aboard the International Space Station hundreds of thousands of miles away as they headed home from the moon.

Researchers have identified a previously unknown neurodevelopmental disorder influenced by genetics - a discovery that promises new diagnoses for thousands of children and families worldwide.

A fossil that was fundamental to describing the evolution of octopuses turns out to have been an impostor, all along.

Scientists are always pushing the boundaries of solar cell efficiency - how much of the available sunshine gets turned into electricity - and a new approach to the technology has resulted in an astonishingly high 130 percent 'quantum yield'.

About 7,300 years ago, a volcano off Japan's Kyushu island unleashed what remains the largest known eruption of the Holocene, our current geological epoch.