China’s “Origins” Space Science Program
doi: 10.11728/cjss2026.04.2026-yg18 cstr: 32142.14.cjss.2026-yg18
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Abstract: The “Origins” Program addresses the first-phase objectives to implement the National Mid- and Long-term Plan for Space Science in China (2024–2050), which was released in October, 2024. Focusing on fundamental questions concerning the "Origins", this program encompasses four flagship space science satellite missions: Discovering the Sky at the Longest wavelength (DSL), the Solar Polar Orbit Observatory (SPO), the Earth 2.0 (ET) mission, and the Enhanced X-ray Timing and Polarimetry (eXTP) mission. These four missions are targeted for major discoveries and original scientific results on the grand questions about the early universe, space weather, earth-like exoplanets and physics of the extreme universe. By 2025, all four missions have completed the Preliminary Design Phase. These four missions have been scheduled to be launched before 2031.
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Key words:
- Space science /
- Science missions /
- Early universe /
- Space weather /
- Exoplanet
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[1] Chinese Academy of Sciences; National Space Administration of China; China Manned Space Engineering Office. National Mid- and Long-term Plan for Space Science in China (2024-2050) [EB/OL]. (2024-10-16)[2026-04-01] https://www.gov.cn/lianbo/bumen/202410/content_6980618.htm [2] CHEN Xuelei, YAN Jingye, DENG Li, et al. 2021 Discovering the sky at the longest wavelengths with a lunar orbit array[J]. Philosophical Transactions of the Royal Society A, 2021, 379(2788): 20190566 doi: 10.1098/rsta.2019.0566 [3] DENG Yuanyong, ZHOU Guiping, DAI Shuwu, et al. Solar polar-orbit observatory[J]. Chinese Science Bulletin, 2023, 38(4): 298-308 [4] GE Jian, ZHANG Hhui, DENG Hongping, et al. The ET mission to search for Earth 2.0 s[J]. The Innovation, 2022, 3(4): 100271 doi: 10.1016/j.xinn.2022.100271 [5] ZHANG Shuang-Nan, SANTANGELO Andrea, XU Yupeng, et al. The enhanced X-ray Timing and Polarimetry mission—eXTP for launch in 2030[J]. Science China Physics, Mechanics & Astronomy, 2025, 68(11): 119502 doi: 10.1007/s11433-025-2786-6 -
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