
Today, at the launch ceremony of the main event of the 10th “China Space Day”, the National Space Administration issued the “Announcement on International Cooperation Opportunities for the Tianwen-3 Mars Sampling and Return Mission” to the international community, opening a total of 20 kg of mass resources of the Tianwen-3 probe to jointly carry out Mars exploration and research with international peers.
The Tianwen-3 mission is an important part of China’s planetary exploration project and is scheduled to be launched around 2028. The Tianwen-3 probe consists of a lander, an ascender, a server assembly, an orbiter, and a returner assembly, with a total of 6 scientific payloads. Among them, the orbiter’s orbit around Mars is a circular orbit of about 350 kilometers, with attitude orientation to the sun, a design life of no less than 5 years, and is equipped with a mid-infrared ultra-fine imaging spectrometer and a Mars global multi-color camera; the server’s orbit around Mars is a large elliptical orbit around Mars with a perigee of about 400 kilometers, with a stay-on-orbit detection of about 2 Mars years, a design life of no less than 5 years, and a sedimentation ENA aurora detector and a high-precision vector magnetometer; the lander is equipped with an ultra-wideband detection radar and a Raman-fluorescence spectrometer.
The mass resources for the Tianwen-3 international cooperation opened by the National Space Administration this time include orbiter resources of no more than 15 kilograms and server resources of no more than 5 kilograms. The National Space Administration said that it welcomes international partners to participate in the Tianwen-3 mission to jointly explore the mysteries of Mars and expand human cognition.