The mission consists of an orbiter, lander, and rover. According to Xinhua News Agency, China’s official state-run press agency, the mission name Tianwen can be translated as “Heavenly Questions” or “Questions to Heaven” and was inspired by a long poem of the same name by Qu Yuan, who lived from about 340 BC to 278 BC. In the poem, the author “raised a series of questions in verse involving the sky, stars, natural phenomena, and the world, showing his doubts about some traditional concepts and the spirit of seeking the truth.”
The orbiter and rover each have several instruments, some of which will use radar to look for water-ice hidden just beneath the surface of the red planet. A few other mission objectives include gathering data on Martian climate, geology, and magnetic fields.
Xinhua News Agency article (Chinese)