Evidence continues to assemble that dwarf galaxies played a larger role in shaping the early universe than previously thought. Astronomers analyzing data from the James Webb Space Telescope (JWST) have

Astronomers have discovered that the largest comet from the Oort Cloud, a shell of icy bodies at the very edge of the solar system, is bursting with chemical activity. Using

Unsettled geomagnetic activity could bring northern lights to parts of the U.S. tonight (June 19–20). A coronal mass ejection (CME) released during a relatively small C5.5 solar flare on June

Astronomers have discovered a vast tendril of hot gas linking four galaxy clusters and stretching out for 23 million light-years, 230 times the length of our galaxy. With 10 times