Astronomers use the Giant Metrewave Radio Telescope to create the first map of atomic hydrogen distributed around a green pea galaxy: a low-redshift analog to the galaxies that reionized the universe.
Researchers study magnetic switchbacks — locations where the Sun’s radial magnetic field folds back on itself — using density variations of helium nuclei observed by the Parker Solar Probe.
An investigation of gas movements in the disk surrounding the young star HD 100546 prompts researchers to advise caution when interpreting velocity signals in disks as clear evidence of an embedded protoplanet.
New observations of Europa yield the first spatially resolved map of sulfur dioxide, the distribution of which is consistent with sulfur ions from Io being directed to Europa’s surface by Jupiter’s magnetic field.
New Hubble Space Telescope observations allow researchers to constrain the properties of the stellar wind of Arcturus, a star that is prominently visible in the Northern Hemisphere sky.
Machine learning algorithms often ignore measurement uncertainty, but a newly developed method presents a way to include this uncertainty in the classification of high-redshift quasar candidates.