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.

A white dwarf and a pre-white dwarf, orbiting one another every 28 minutes, will someday cause a supernova through either a merger or the dynamically driven double-degenerate double-detonation channel.

Deep millimeter-wavelength observations did not detect dust emission from 60 little red dots, suggesting that these enigmatic objects are either only modestly dusty or contain extremely dense gas.