Jamie Dietrich et al 2026 AJ 172 35

Some systems in the Habitable Worlds Observatory (HWO) Exoplanet Exploration Program (ExEP) Mission Star List have more than a 50% chance of hosting a temperate terrestrial exoplanet.

Junwei Zhao et al 2026 ApJ 1004 175

More than half of solar magnetic flux appears to emerge in three bands, two of which rotate faster than the Carrington rate; this finding suggests a connection between surface flux and interior dynamical processes.

Zhecheng Hu et al 2026 ApJS 284 70

Researchers have identified six new candidate circumbinary disk systems, potentially greatly increasing the number of known systems of this type; these system exhibit deep and prolonged dimming episodes.

Yapeng Zhang et al 2026 ApJL 1005 L29

Ultra-hot Jupiter KELT-9b possesses an outflow with a mass-loss rate above 10¹³ g s^-1 — one of the highest mass-loss rates measured for a gaseous exoplanet — and a diagnostic hydrogen Balmer line from its dayside.

Asad Ukani et al 2026 ApJ 1004 171

Modeling of the Milky Way’s circumnuclear disk of molecular gas suggests that the gas is distributed in a disk with inner and outer radii of 1.0 and 2.9 parsecs and an inclination of 60 degrees.

Michelle L. Hill et al 2026 Planet. Sci. J. 7 140

Planets with radii 20% or possibly 30% smaller than Earth’s radius can maintain atmospheres, with initial carbon content, core radius fraction, initial mantle temperature, and other factors playing a role.