Using a novel combination of direct imaging and grism spectroscopy, researchers have resolved and spectroscopically confirmed the two components of a close pair of active galactic nuclei.

The Transiting Exoplanet Survey Satellite (TESS) identified at least 158,000 oscillating red giants, resulting in a nearly order-of-magnitude increase in the number of known stars of this type.

The LIGO collaboration has discovered a remarkable pair of merging black holes; with estimated masses of 137 and 101 solar masses, these black holes appear to lie within or span the black hole mass gap.

For a sample of nine variable stars, stellar variability appears to have little impact on exoplanet equilibrium temperature or water retention, though more extreme variability may have a greater impact.

Modeling of outflows from the galaxies of Stephan’s Quintet shows the transition from active galactic nucleus–powered outflows at small radii to tidal flow powered outflows at larger radii.

When a bright star saturates the detector on JWST’s Mid-Infrared Instrument, the flux deficit that follows could produce false-positive exoplanet signals and degrade point-spread function subtraction.