Chinese Space Station Telescope Archives

The systematic evaluation of algorithm effectiveness. (a) displays the original flat-field response distributions following background correction. Panels (b,c) illustrate the corrected results after algorithm processing, while (d) presents the distribution profiles of channel DN values. Notably, as evidenced in the comparative diagrams (a–c), Channel 1 (Ch1) maintains consistent spatial positioning in the upper-right quadrant of each schematic layout. -- astro-ph.IM

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Space Stations, Status Report

Performance Calibration of the Wavefront Sensor’s EMCCD Detector for the Cool Planets Imaging Coronagraph Aboard CSST

by Keith CowingDecember 30, 2025December 30, 2025

The wavefront sensor (WFS), equipped with an electron-multiplying charge-coupled device (EMCCD) detector, is a critical component of the Cool Planets Imaging Coronagraph (CPI-C) on the Chinese Space Station Telescope (CSST).

The magnification excess maps for planet-satellite configurations with log q = −1.5 and | log s| = 0.3. The color coding indicates fractional magnification differences between the 2L1S and 1L1S models. The maps with wide-separation (log s = 0.3) and close-separation (log s = −0.3) cases are displayed in the upper and lower panels, respectively. The left and right panels correspond to Earthmass and Neptune-class planets. The x-y coordinates denote the source positions in units of θE, with the positive x-axis aligned in the direction pointing from the planet (gold star) to the satellite (cyan star). Magenta circles indicate the source stars’ sizes (ρ = 0.33 for Earth-mass lenses and ρ = 0.08 for Neptune-class). Caustics are depicted in red, with the central caustic located near the planet and the satellite caustics positioned farther away. Each panel includes a lower-right inset offering a zoom-in view of the central caustics. -- astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

Detecting Exomoons In Free-Floating-Planet Events From Space-based Microlensing Surveys

by Keith CowingMay 30, 2025May 26, 2025

When a planet is ejected from its star-planet system due to dynamical interactions, its satellite may remain gravitationally bound to the planet.

The Chinese Space Station Telescope (CSST) - CNSA/Xinhua

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

Chinese Space Station Telescope: Detecting Exomoons in Free-Floating-Planet Events from Space-based Microlensing Surveys

by Keith CowingJanuary 9, 2025January 9, 2025

When a planet is ejected from its star-planet system due to dynamical interactions, its satellite may remain gravitationally bound to the planet.

Chinese Space Station Telescope

Performance Calibration of the Wavefront Sensor’s EMCCD Detector for the Cool Planets Imaging Coronagraph Aboard CSST

Detecting Exomoons In Free-Floating-Planet Events From Space-based Microlensing Surveys

Chinese Space Station Telescope: Detecting Exomoons in Free-Floating-Planet Events from Space-based Microlensing Surveys

How Does Someone Become An Astrobiologist?

Astrobiology Graduate Conference (AbGradCon) 2026

NASA Viking Mission: A Perspective of the Labeled Release Biological Experiment on Mars

Gelato: A Mission Concept for Comet Surface Sample Return

Offworld Biotechnology: Brain Organoid Research