Space

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

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

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

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

A new look at decades-old data from the Apollo missions has revealed evidence of tens of thousands of previously unknown

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

One of the most compelling possible signs of extraterrestrial communication may have an astrophysical explanation. Called “Wow!” signal, the bright

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

A lucky alignment of two sun-studying spacecraft may have finally solved a decades-old solar mystery. Data from NASA’s Parker Solar