This is an old name, commonly used in this area, and refers to the planet being a veil of tears.

这是一个古老的名字，在这个区域被普遍使用，是指这个星球是一个充满泪水的面纱。

youdao

Tears of joy - The most commonly used emoji on the planet, this was the Oxford 7 English Dictionary's word of the year for 2015.

笑中带泪——这是地球上最常用的表情符号，是牛津英文字典2015年的年度词汇。

youdao

Team members hugged and high-fived one another as Curiosity beamed back the first pictures from the planet, while some shed tears.

CNN: Mars landing went 'flawlessly,' scientists say