Data for more than 85,000 bright stars have been released from the AST3-II telescope, which is positioned on Dome A, the highest point on the Antarctic plateau.

Researchers investigate the Ophiuchus stellar stream, which displays substructure perpendicular to its main direction, a broadened tail, and a smaller angular extent than expected.

With the MAVEN spacecraft positioned in Mars’s magnetotail and Tianwen-1 in the upstream solar wind, researchers showed how interplanetary magnetic field rotation drives plasma processes in the magnetotail.

X-ray spectra suggest that a new black hole transient was caught in the process of transitioning from the hard intermediate state to the very high state, and continued in the very high state during later flare periods.

Follow-up observations of a gravitational microlensing event show the source to be a 10-Earth-mass exoplanet orbiting an M-dwarf star, consistent with the discovery article.

A chance alignment between the Parker Solar Probe and Solar Orbiter at 0.11 and 0.88 au from the Sun allowed researchers a rare glimpse into how solar wind turbulence evolves with distance from the Sun.