Space

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

At age 12, Tracy Slatyer felt sorry for a book. She read a newspaper article about how lots of people

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 survey of shooting stars shows that meteors blazing 90

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

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

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