Nature Astronomy, Published online: 22 October 2024; doi:10.1038/s41550-024-02392-8 Using JWST, spectral features have been detected in the near-infrared emission of distant galaxies. The observations address a long-standing controversy about the contribution of thermally pulsing asymptotic-giant-branch stars to galaxy emission, with

Nature Astronomy, Published online: 22 October 2024; doi:10.1038/s41550-024-02391-9 Strong near-infrared spectral features from asymptotic giant branch stars are detected by JWST in the integrated light from distant quiescent galaxies, clarifying their contribution to galaxy spectra and population synthesis models. —————

Nature Astronomy, Published online: 21 October 2024; doi:10.1038/s41550-024-02387-5 Samples from asteroid Ryugu bear hydrated ammonium magnesium phosphorus (HAMP) grains, which have no known parallels to meteorite minerals but provide clues to the formation of Ryugu and suggest that asteroids supply

Nature Astronomy, Published online: 18 October 2024; doi:10.1038/s41550-024-02396-4 High-resolution solar flare observations captured rapid brightening in the Sun’s lower atmosphere. Their speeds of thousands of kilometres per second provide a missing piece of evidence for magnetic reconnection in three dimensions.

Nature Astronomy, Published online: 17 October 2024; doi:10.1038/s41550-024-02395-5 The bubbling surface of a stellar crucible ————— Free Secure Email – Transcom Sigma Transcom Hosting Transcom Premium Domains

Nature Astronomy, Published online: 17 October 2024; doi:10.1038/s41550-024-02404-7 Is Mars exploration stalling? The unused 2022 and 2024 launch windows send some warning signs. A revitalized approach could orient a new phase of exploration and complement the long-awaited sample return process.