Under simulated Martian conditions, researchers find that the presence of sunlight decreases the maximum slope of granular surfaces from 35 degrees to 10 degrees.

Analysis of a sub-Saturn exoplanet around an F-type star provides clues that the near-polar alignment observed for these planets around cool stars is also present around hotter stars.

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.