Using precise astrometry from Hipparcos and Gaia, researchers derived masses and orbits for 111 stellar, 12 brown dwarf, and 33 planetary companions around main-sequence stars.

Simulated black-hole disks with accretion rates between 0.03 and 4 times the Eddington rate are capable of reproducing the spectra seen from real disks, yielding insights into the physical structures of these disks.

Models suggest that collisions between continents that drive tectonic uplift cannot be the only source of weatherable minerals if an Earth-like planet without life is to have a stable climate.

New and archival Hubble observations show that the components of NGC 3603-A1 have masses of 93 and 70 solar masses, and these two enormous stars orbit one another every 3.8 days.

Using interstellar dust polarization measurements from Planck, researchers have demonstrated that the magnetic field structures in the G111 molecular cloud are aligned with density structures.

A trip through the archives of the Transiting Exoplanet Survey Satellite (TESS) revealed images of 3I/ATLAS going back to 7 May 2025; these images showed that the object may have been active out to ~6 au.