Space

Opposing fountains of plasma and particles spanning 23 million light-years are the longest pair of black hole jets ever seen. […]

Black holes about the size of a hydrogen atom could be careening through the solar system unnoticed. But their days

Betelgeuse, Betelgeuse! The red supergiant that marks Orion’s left shoulder may have a tiny, unseen companion. Two independent studies found

While SpaceX’s Starlink satellites are enabling internet access and cell phone communications around the globe, they’re also posing a threat

As the youthful universe congealed under the pull of gravity, matter knotted itself into galaxies, galaxy clusters and filaments, weaving

As more and more species come close to extinction, scientists have been collecting samples of animals, plants and other creatures

Imagine going on a week-long business trip and not coming home until next year. That may be the case for

One of the most distant quasars known appears to have shut down the formation of new stars in all galaxies

A distant stellar nursery holds a cluster of newborn worlds the size of Jupiter, the smallest of which is surrounded

For the first time, scientists have measured a long-sought global electric field in Earth’s atmosphere. This field, called the ambipolar