Zihao Wu et al 2026 ApJ 1006 18

A concentration of galaxies four times denser than expected provides an opportunity to understand how environment impacts galaxy evolution and the onset of reionization.

Mengjie Li et al 2026 ApJS 285 26

Using light curves from the Transiting Exoplanet Survey Satellite (TESS), researchers have performed an asteroseismic analysis of 221 main-sequence and subgiant solar-like oscillators.

Sami K. Solanki et al 2026 ApJL 1005 L64

Sunrise III, a stratospheric balloon-borne solar observatory, took a 6.5-day flight from northern Sweden to northwestern Canada in 2024, gathering 200 TB of data with its 1-meter telescope and three instruments.

Gustavo Madeira et al 2026 Planet. Sci. J. 7 168

A recently identified opaque feature around the dwarf planet Quaoar appears to be inconsistent with an orbiting sharp-edged arc explained by triangular-point confinement; it’s likely a satellite instead.

I. Psaradaki et al 2026 ApJ 1005 53

X-ray absorption observations toward a black hole transient reveal the interstellar dust grain composition along the line of sight: a silicate magnesium-rich amorphous pyroxene and metallic iron.

Nazar Budaiev et al 2026 AJ 172 51

JWST has detected more than a dozen new candidate H II regions, despite extensive radio surveys of the region, and these observations suggest that infrared photons can escape even dense, dusty gas.