The transition from cluster to stream offers an extraordinary opportunity for exoplanetary science. Inside a dense cluster, ...

Astronomers have accidentally discovered the first known intergalactic trail of stars. The gigantic "stellar stream," which is around 10 times longer than the Milky Way, suggests that more of these ...

Sierra Streams Institute will celebrate its 30th anniversary with a free community event on Saturday, May 16 from 1 to 5 p.m. at Pioneer Park in Nevada City, bringing together art, music, and hands-on ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. Scientists knew immediately the consequences of the case, Sackett v. EPA, would be ...

A tiny, vibrant world thrives along the rocky bottom of most streams. As sunlight filters through the water, mayfly nymphs, no larger than your fingernail, cling to algae-coated cobbles. Six spindly ...