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

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

A red dwarf star known as Barnard’s star, which lies a mere six light-years from our solar system, has at

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

To leave a lasting trail, meteors must aim downward. A new study of shooting stars shows that meteors that blaze

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

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

Contrary to a previous report, there is no evidence for an intermediate-mass black hole in Omega Centauri, the Milky Way’s