Long before rockets and satellites reached space, the Crab Nebula stood out as a steady beacon of high-energy light. At its ...

During the 1240s, Richard Fishacre, a Dominican friar at Oxford University, used his knowledge of light and color to show ...

NASA’s upcoming Habitable Worlds Observatory will search for alien life starting in the 2040s. I Was A Happily Married Mother ...

Scientists flew the XL-Calibur telescope on a high-altitude balloon to measure polarized X-rays from Cygnus X-1. These ...