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https://www.nature.com/articles/s41550-026-02802-z?error=cookies_not_supported&code=00249730-781f-4f88-9085-fd71a1fba0e3 Enrichment by the first stars in a relic dwarf galaxy | Nature Astronomy Mar 16, 2026 - Stars that contain trace amounts of elements heavier than helium (that is, ‘metallicity’) preserve the chemical fingerprints of the first stars. In the Milky... the first in a nature astronomy enrichment stars https://www.nature.com/articles/s41550-026-02806-9?error=cookies_not_supported&code=2ed23761-2c35-431f-9655-3eb0d259052d No thick atmosphere around TRAPPIST-1 b and c from JWST thermal phase curves | Nature Astronomy Apr 3, 2026 - The survival of dense secondary atmospheres around temperate rocky planets orbiting low-mass red dwarfs remains an important open question. Here we show that... b and c nature astronomy thick atmosphere around https://www.nature.com/articles/s41550-019-0890-0.epdf?author_access_token=cwbLYpMtIYA4jlwRnfIAb9RgN0jAjWel9jnR3ZoTv0M8zHwGnCyQ_6fmy44CA9c6QyhtFonQPC65a_7V6uyqQgo1_Tu1oYBFmfuP3ByM4K4iOmyq885b7LV8XZk5e14dkZ8irPgb3Kwa9SCafox36A%3D%3D&error=cookies_not_supported&code=ae63e4ca-4ce3-4811-ba92-e3e522a359ad Asteroseismic signatures of the helium core flash | Nature Astronomy All evolved stars of up to 2 solar masses undergo a helium core flash at the end of their first stage as a giant star. Although theoretically predicted more... nature astronomy signatures helium core flash https://www.nature.com/articles/s41550-022-01718-8?error=cookies_not_supported&code=19f14c7b-da66-4236-9c12-3cff7a25007a Unnecessary risks created by uncontrolled rocket reentries | Nature Astronomy Jul 11, 2022 - Most space launches result in uncontrolled rocket body reentries, creating casualty risks for people on the ground, at sea and in aeroplanes. These risks have... created by nature astronomy risks rocket https://www.nature.com/articles/s41550-021-01487-w?error=cookies_not_supported&code=4d4fb65a-1168-466f-a309-a60ea9eb0023 Solar wind contributions to Earth’s oceans | Nature Astronomy Nov 29, 2021 - The isotopic composition of water in Earth’s oceans is challenging to recreate using a plausible mixture of known extraterrestrial sources such as asteroids—an... solar wind nature astronomy contributions oceans https://www.nature.com/articles/s41550-019-0701-7?error=cookies_not_supported&code=c16a7943-bfdf-4a18-8018-75cb459af958 Obliquity-driven sculpting of exoplanetary systems | Nature Astronomy Apr 24, 2019 - NASA’s Kepler mission revealed that ~30% of Solar-type stars harbour planets with sizes between that of Earth and Neptune on nearly circular and coplanar... nature astronomy driven sculpting systems