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.

Starless subhalos may trace their origins back to the epoch of reionization, when regions of tenuous gas wouldn’t have been able to shield themselves from ultraviolet radiation and thus could not form stars.

Researchers have developed a new way to subtract the F-coronal background from certain Parker Solar Probe images to reveal the large-scale dynamics of the K-corona.

Simulations suggest that a 5–10 km thick clathrate crust can explain the appearance of Titan’s craters, with erosion and infill explaining the lack of central features in these craters.