@cosmos4u@scicomm.xyzA Stellar magnesium to silicon ratio in the atmosphere of an exoplanet: #Exoplanets and Their Host Stars: https://noirlab.edu/public/news/noirlab2609/ - new observations provide the first direct evidence that exoplanets inherit rocky-element ratios from their host stars.
@cosmos4u@scicomm.xyzThe dark and featureless surface of rocky #exoplanet LHS 3844 b from JWST mid-infrared spectroscopy: https://arxiv.org/abs/2605.00100 or https://www.mpg.de/26439637/zieba_2026_lhs3844b_initialsubmission.pdf -> Astronomers Explore the Surface Composition of a Nearby Super-Earth: https://www.mpia.de/news/science/2026-03-lhs3844b - Webb observations constrain the properties of a rocky exoplanet’s hot crust.
@cosmos4u@scicomm.xyzDistinct Rotational Evolution of Giant Planets and Brown Dwarf Companions: #exoplanet spins confirms long-predicted relationship between planetary mass and rotation: https://keckobservatory.org/kpic-spin-survey/ with https://www.dropbox.com/scl/fo/w5f4ntav4pybpale8c6p6/ANbPpoQxnCEIG2i-0vL5Ll8?rlkey=cxblu3u2n3ovocew0qch46opt&e=1&st=fgpk8v3u&dl=0