As reported by Xinhua News Agency, China's flagship survey space telescope, slated to be launched at the end of 2023, is expected to provide humankind with fresh knowledge about distant galaxies, mysterious dark matter and dark energy, and the past and future evolutions of the universe.

Using LAMOST DR7 low-resolution spectral data, a group of researchers from NAOC have discovered 734 ultracool dwarfs, which are candidates of brown dwarfs. This is the largest homogeneous ultracool dwarf sample with rich stellar parameter information.

A research group at NAOC has recently analyzed the large-scale structure distribution of radio galaxies observed by Low Frequency Array (LOFAR). The group applied proper flux cut and sky mask to ensure sample completeness, systematically studied the multi-component effects and finally obtained the constraints on galaxy bias by employing MCMC based Bayesian analysis. This work helps understand the bias of LOFAR galaxy population and lays the foundation for future LoTSS DR2 analysis.