Differences in SEDs, spectroscopic features, and spatial morphologies among various types of celestial objects. From top to bottom, the examples shown correspond to a galaxy, a quasar, and a star. The ...

The first dark comet—a celestial object that looks like an asteroid but moves through space like a comet—was reported less than two years ago. Soon after, another six were found. In a new paper, ...

Astronomers have used the Gemini North telescope to capture a new image of a planetary nebula nicknamed the Crystal Ball ...

Astronomers have discovered a strange new object in our Milky Way galaxy.An international team reported Wednesday that this celestial object — perhaps a star, pair of stars or something else entirely ...