Planet-forming disks, maelstroms of gas and dust swirling around young stars, are nurseries that give rise to planetary systems, including our solar system. Astronomers have discovered new details of ...
A comet named C/2023 A3 Tsuchinshan–ATLAS is making an 80,000-year orbit around the sun. Some have dubbed it the "comet of the century" because of its long tail and how brightly the comet might shine ...