Decades of radio observations of the extremely bright center of a galaxy suggest that this galactic center contains something extraordinary: a pair of supermassive black holes orbiting each other every two years.

Astronomers use a new model of galaxy formation stretching back to a redshift of z ~ 12 to predict the scientific returns of a one-square-degree ultra-deep-field image from the upcoming Roman Space Telescope.

Samples returned from the salty surface deposits on Ceres present the best way to assess whether or not the dwarf planet, which has ongoing geological activity in addition to reservoirs of brine, is habitable.

There appear to be no obvious environmental factors that drive the creation of carbon monoxide cores in the star-forming regions of dwarf irregular galaxies, which have extremely low metal abundances.

Results of a search for the dust emission from lensed, optically dark galaxies suggest that there may be a missing population of extremely massive star-forming galaxies in the early universe.

A new catalog of outer solar system objects incorporates a further two years of data from the Dark Energy Survey, yielding 812 trans-Neptunian objects, one Centaur and one Oort cloud comet, 458 of which are newly reported.