Using Gaia data release 3, a new stellar streamprobably formed from a dwarf galaxy was detected and dubbedas Yangtze. The stream is about 27 degree long, 1.9 degree wide, and 9.12 kpc away from the sun. By inspecting dynamics and orbits, researchers at NAOC found that Yangtze may have a common progenitor with the Anticenter Stream and a close association with the globular cluster Pal 1.

Researchers from NAOC report here the identification of a new molecular bubble with an outflow, located at the bubble center. Multi-wavelength data have been utilized to study its spatial structure, energy injection, and dynamical timescale. This is an unusual new structure found in low- and intermediate-mass star formation regions. The bubble-outflow structure enhances the understanding of how stellar feedback acts on molecular clouds.

The research team led by Prof. Li Di from NAOC newly detected, based on precise observations of the FAST, circular polarization in two active repeating fast radio bursts, increasing the number of repeating FRBs with circular polarization from 1 to 3, suggesting that circular polarization could be a common trait of repeating FRBs.