Glowing galaxies in infrared and ultraviolet “FAST search for circumstellar atomic hydrogen–I: the young planetary nebula IC 4997,” Xu-Jia Ouyang et al., to be published in The Astrophysical Journal ( preprint on ).Research sheds more light on the properties of young planetary nebula IC 4997 ( ).Standard composition of the Sun,” Ekaterina Magg et al., 2022 May 20, Astronomy & AstrophysicsįAST measures hydrogen absorption in planetary nebula “ Observational constraints on the origin of the elements: IV.“ Satellite magnetic data reveal interannual waves in Earth’s core,” Nicolas Gillet et al., 2022 March 21, PNAS.
Magnetic waves discovered in Earth’s core