By Briony Horgan
Purdue University 

NASA's big move to search for life on Mars – and to bring rocks home


(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.)

Briony Horgan, Purdue University and Melissa Rice, Western Washington University

(THE CONVERSATION) NASA just took the next giant leap in the search for signs of life beyond Earth.

On July 30, NASA launched its most sophisticated and ambitious spacecraft to Mars: the aptly named Perseverance rover. This will be the third launch to Mars this month, following the UAE's Hope and China's Tianwen-1 spacecraft. Perseverance will look for signatures of ancient life preserved in Mars ro...

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