Archival data from the Chandra X-ray Observatory and the Very Large Telescope reveal the temperature, density, and thermal energy of the wind from a low-luminosity active galactic nucleus.

Combining strongly lensed gravitational wave signals with luminosity distances from their host galaxies, the Hubble constant could be measured in a way that is complementary to electromagnetic methods.

Modeling suggests that even planets within their stars’ habitable zones may become uninhabitable if they do not have a sufficient water inventory to balance their carbon cycle.

ZTF19acnskyy may be the first X-ray quasiperiodic eruption source to display correlated ultraviolet emission — another strange behavior that researchers must explain for this already unique source.

Simulations suggest that tidally locked planets have similar atmospheric escape rates to Earth analogs despite having cooler and drier atmospheres near their surfaces.

Using the Five-hundred-meter Aperture Spherical radio Telescope, researchers have discovered and measured the spins and masses of a pair of neutron stars using the pulsar timing method.