Set off to Mars is a popular science book written for Chinese teenagers aged 7-15. It was written by a team of experts from China Aerospace Science and Technology Corporation. It provides a detailed introduction to the "Tianwen-1" Mars exploration and knowledge of Mars in the form of a combination of pictures and texts. .

The book is divided into two parts in terms of content. The first part is the popularization of Mars knowledge. First-line scientists will popularize comprehensive and correct Mars knowledge for young readers, as well as the process of human exploration of Mars. The second part is the full record of "Tianwen-1" Mars exploration. The first-line team of scientists involved in the "Tianwen-1" launch will introduce the readers the whole process of Mars exploration and the untold stories behind it, as well as the moving stories of China's hard work in spaceflight.